Sample records for ambient air monitoring

  1. ambient air monitoring: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Piero Zappi, Elizabeth Bales, Jing Hong Simunic, Tajana 18 Economic and energetic analysis of capturing CO2 from ambient air Environmental Sciences and Ecology Websites...

  2. Operation of a Joint Utility/Industry Ambient Air Monitoring Program in the Houston Area 

    E-Print Network [OSTI]

    Kush, J. A.

    1991-01-01T23:59:59.000Z

    of Commerce or any other business or industrial organization. HRM's officers and directors are employees of its participating companies. HRM does not have any paid employees it contracts for all necessary services. Radian Corporation has been contracted... participating companies. HRM does not have any paid employees it contracts for 119 all necessary services. Radian Corporation has been contracted for the ambient air monitoring and special studies for all phases of HRM thus far. All participating companies...

  3. ORIGINAL ARTICLE Ambient Air Pollution

    E-Print Network [OSTI]

    Mulholland, James A.

    ORIGINAL ARTICLE Ambient Air Pollution and Cardiovascular Emergency Department Visits Kristi Busico ambient air pollutants and cardiovascular disease (CVD), the roles of the physicochemical components the relation between ambient air pollution and cardiovascular conditions using ambient air quality data

  4. Ambient Air Quality Standards (Iowa)

    Broader source: Energy.gov [DOE]

    These regulations set statewide ambient air quality standards for various contaminants. The state code follows the regulations set forth in the National Primary and Secondary Ambient Air Quality...

  5. Nonradioactive Ambient Air Monitoring at Los Alamos National Laboratory 2001--2002

    SciTech Connect (OSTI)

    E. Gladney; J.Dewart, C.Eberhart; J.Lochamy

    2004-09-01T23:59:59.000Z

    During the spring of 2000, the Cerro Grande forest fire reached Los Alamos National Laboratory (LANL) and ignited both above-ground vegetation and disposed materials in several landfills. During and after the fire, there was concern about the potential human health impacts from chemicals emitted by the combustion of these Laboratory materials. Consequently, short-term, intensive air-monitoring studies were performed during and shortly after the fire. Unlike the radiological data from many years of AIRNET sampling, LANL did not have an adequate database of nonradiological species under baseline conditions with which to compare data collected during the fire. Therefore, during 2001 the Meteorology and Air Quality Group designed and implemented a new air-monitoring program, entitled NonRadNET, to provide nonradiological background data under normal conditions. The objectives of NonRadNET were to: (1) develop the capability for collecting nonradiological air-monitoring data, (2) conduct monitoring to develop a database of typical background levels of selected nonradiological species in the communities nearest the Laboratory, and (3) determine LANL's potential contribution to nonradiological air pollution in the surrounding communities. NonRadNET ended in late December 2002 with five quarters of data. The purpose of this paper is to organize and describe the NonRadNET data collected over 2001-2002 to use as baseline data, either for monitoring during a fire, some other abnormal event, or routine use. To achieve that purpose, in this paper we will: (1) document the NonRadNET program procedures, methods, and quality management, (2) describe the usual origins and uses of the species measured, (3) compare the species measured to LANL and other area emissions, (4) present the five quarters of data, (5) compare the data to known typical environmental values, and (6) evaluate the data against exposure standards.

  6. Development of an ambient air sampler that satisfies RF plant monitoring requirements

    SciTech Connect (OSTI)

    Nininger, R.C.; Pauley, B.J.

    1993-01-01T23:59:59.000Z

    EG G Rocky Flats Plant (RFP) is developing a new ambient air particulate sampler to replace units that have been in service for about twenty years. The new sampler is required to operate at a flow rate approximately twice that of the existing samplers and admit particles as large as 70 micrometers aerodynamic diameter. The sampler provides two size fractions with separation at 10 micrometers. using a single stage impactor designed at RFP and carrying a Department of Energy (DOE) patent. The sampler is modular for easy servicing in the field and its operation can be checked via radiotelemetry. The sampler, designed to meet Environmental Protection Agency (EPA) requirements for PM-10 sampling, is currently being characterized in EPA's laboratories at Research Triangle Park, North Carolina.

  7. Development of an ambient air sampler that satisfies RF plant monitoring requirements

    SciTech Connect (OSTI)

    Nininger, R.C.; Pauley, B.J.

    1993-05-01T23:59:59.000Z

    EG&G Rocky Flats Plant (RFP) is developing a new ambient air particulate sampler to replace units that have been in service for about twenty years. The new sampler is required to operate at a flow rate approximately twice that of the existing samplers and admit particles as large as 70 micrometers aerodynamic diameter. The sampler provides two size fractions with separation at 10 micrometers. using a single stage impactor designed at RFP and carrying a Department of Energy (DOE) patent. The sampler is modular for easy servicing in the field and its operation can be checked via radiotelemetry. The sampler, designed to meet Environmental Protection Agency (EPA) requirements for PM-10 sampling, is currently being characterized in EPA`s laboratories at Research Triangle Park, North Carolina.

  8. Quantitative Assessment of Detection Frequency for the INL Ambient Air Monitoring Network

    SciTech Connect (OSTI)

    A. Jeffrey Sondrup; Arthur S. Rood

    2014-11-01T23:59:59.000Z

    A quantitative assessment of the Idaho National Laboratory (INL) air monitoring network was performed using frequency of detection as the performance metric. The INL air monitoring network consists of 37 low-volume air samplers in 31 different locations. Twenty of the samplers are located on INL (onsite) and 17 are located off INL (offsite). Detection frequencies were calculated using both BEA and ESER laboratory minimum detectable activity (MDA) levels. The CALPUFF Lagrangian puff dispersion model, coupled with 1 year of meteorological data, was used to calculate time-integrated concentrations at sampler locations for a 1-hour release of unit activity (1 Ci) for every hour of the year. The unit-activity time-integrated concentration (TICu) values were calculated at all samplers for releases from eight INL facilities. The TICu values were then scaled and integrated for a given release quantity and release duration. All facilities modeled a ground-level release emanating either from the center of the facility or at a point where significant emissions are possible. In addition to ground-level releases, three existing stacks at the Advanced Test Reactor Complex, Idaho Nuclear Technology and Engineering Center, and Material and Fuels Complex were also modeled. Meteorological data from the 35 stations comprising the INL Mesonet network, data from the Idaho Falls Regional airport, upper air data from the Boise airport, and three-dimensional gridded data from the weather research forecasting model were used for modeling. Three representative radionuclides identified as key radionuclides in INL’s annual National Emission Standards for Hazardous Air Pollutants evaluations were considered for the frequency of detection analysis: Cs-137 (beta-gamma emitter), Pu-239 (alpha emitter), and Sr-90 (beta emitter). Source-specific release quantities were calculated for each radionuclide, such that the maximum inhalation dose at any publicly accessible sampler or the National Emission Standards for Hazardous Air Pollutants maximum exposed individual location (i.e., Frenchman’s Cabin) was no more than 0.1 mrem yr–1 (i.e., 1% of the 10 mrem yr–1 standard). Detection frequencies were calculated separately for the onsite and offsite monitoring network. As expected, detection frequencies were generally less for the offsite sampling network compared to the onsite network. Overall, the monitoring network is very effective at detecting the potential releases of Cs-137 or Sr-90 from all sources/facilities using either the ESER or BEA MDAs. The network was less effective at detecting releases of Pu-239. Maximum detection frequencies for Pu-239 using ESER MDAs ranged from 27.4 to 100% for onsite samplers and 3 to 80% for offsite samplers. Using BEA MDAs, the maximum detection frequencies for Pu-239 ranged from 2.1 to 100% for onsite samplers and 0 to 5.9% for offsite samplers. The only release that was not detected by any of the samplers under any conditions was a release of Pu-239 from the Idaho Nuclear Technology and Engineering Center main stack (CPP-708). The methodology described in this report could be used to improve sampler placement and detection frequency, provided clear performance objectives are defined.

  9. Operation of a Joint Utility/Industry Ambient Air Monitoring Program in the Houston Area

    E-Print Network [OSTI]

    Kush, J. A.

    of Significant Deterioration (PSD) permit and ESL-IE-91-06-28 Proceedings from the 13th National Industrial Energy Technology Conference, Houston, TX, June 12-13, 1991 Texas Air Control Board (TACB) construction and operating permit requirements. The objectives... member companies with representative criteria pollutant and meteorological data for industry located within a 900 square mile area encompassing east Harris and west Chambers Counties. Data from this network has been approved by the ACB and EPA Region VI...

  10. ORIGINAL ARTICLE Ambient Air Pollution

    E-Print Network [OSTI]

    Mulholland, James A.

    ORIGINAL ARTICLE Ambient Air Pollution and Respiratory Emergency Department Visits Jennifer L. Peel pollution and respiratory outcomes. More refined assessment has been limited by study size and available air quality data. Methods: Measurements of 5 pollutants (particulate matter PM10 , ozone, nitrogen dioxide NO2

  11. Lead reduction in ambient air

    SciTech Connect (OSTI)

    Smith, R.D.; Kiehn, O.A.; Wilburn, D.R.; Bowyer, R.C.

    1987-01-01T23:59:59.000Z

    The Bureau of Mines evaluated the emission control methods, including the capital investments and operating cost, necessary for further reducing lead levels in ambient air at the Glover, Herculaneum, and Buick smelter-refineries in Missouri and the East Helena, MT, smelter. This report presents theoretically achievable lead emission reductions and estimated capital and operating costs.

  12. Ambient Air Quality Criteria (Manitoba, Canada)

    Broader source: Energy.gov [DOE]

    The Manitoba Ambient Air Quality Criteria schedule lists maximum time-based pollutant concentration levels for the protection and preservation of ambient air quality within the Province of Manitoba...

  13. Vermont Air Pollution Control Regulations, Ambient Air Quality Standards (Vermont)

    Broader source: Energy.gov [DOE]

    The ambient air quality standards are based on the national ambient air quality standards. The Vermont standards are classified as primary and secondary standards and judged adequate to protect...

  14. Ambient Air Quality Standards (New Jersey)

    Broader source: Energy.gov [DOE]

    This article lists specific standards for ambient air quality standards for particulate matter, sulfur dioxide, carbon monoxide, ozone, lead and nitrogen dioxide.

  15. Ambient Air Quality Standards (New Mexico)

    Broader source: Energy.gov [DOE]

    This regulation establishes ambient air quality standards for the areas of New Mexico under the jurisdiction of the Environmental Improvement Board. The maximum allowable concentrations of total...

  16. Chapter 53 Ambient Air Quality (Kentucky)

    Broader source: Energy.gov [DOE]

    Kentucky Administrative Regulation Chapter 53, entitled Ambient Air Quality, is promulgated under the authority of the Division of Air Quality within the Energy and Environment Cabinet’s Department...

  17. Alpha-environmental continuous air monitor inlet

    DOE Patents [OSTI]

    Rodgers, John C. (Santa Fe, NM)

    2003-01-01T23:59:59.000Z

    A wind deceleration and protective shroud that provides representative samples of ambient aerosols to an environmental continuous air monitor (ECAM) has a cylindrical enclosure mounted to an input on the continuous air monitor, the cylindrical enclosure having shrouded nozzles located radially about its periphery. Ambient air flows, often along with rainwater flows into the nozzles in a sampling flow generated by a pump in the continuous air monitor. The sampling flow of air creates a cyclonic flow in the enclosure that flows up through the cylindrical enclosure until the flow of air reaches the top of the cylindrical enclosure and then is directed downward to the continuous air monitor. A sloped platform located inside the cylindrical enclosure supports the nozzles and causes any moisture entering through the nozzle to drain out through the nozzles.

  18. ambient air samples: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ambient air. A small amount of these nuclei mode particles contain solid ash from lube oil) South Coast Air Quality Management District California Air Resources Board Cummins...

  19. Personal continuous air monitor

    DOE Patents [OSTI]

    Morgan, Ronald G. (Los Alamos, NM); Salazar, Samuel A. (Albuquerque, NM)

    2000-01-01T23:59:59.000Z

    A personal continuous air monitor capable of giving immediate warning of the presence of radioactivity has a filter/detector head to be worn in the breathing zone of a user, containing a filter mounted adjacent to radiation detectors, and a preamplifier. The filter/detector head is connected to a belt pack to be worn at the waist or on the back of a user. The belt pack contains a signal processor, batteries, a multichannel analyzer, a logic circuit, and an alarm. An air pump also is provided in the belt pack for pulling air through the filter/detector head by way of an air tube.

  20. Ambient Operation of Li/Air Batteries

    SciTech Connect (OSTI)

    Zhang, Jiguang; Wang, Deyu; Xu, Wu; Xiao, Jie; Williford, Ralph E.

    2010-07-01T23:59:59.000Z

    In this work, Li/air batteries based on nonaqueous electrolytes were investigated in ambient conditions (with an oxygen partial pressure of 0.21 atm and relative humidity of ~20%). A heat-sealable polymer membrane was used as both an oxygen-diffusion membrane and as a moisture barrier for Li/air batteries. The membrane also can minimize the evaporation of the electrolyte from the batteries. Li/air batteries with this membrane can operate in ambient conditions for more than one month with a specific energy of 362 Wh kg-1, based on the total weight of the battery including its packaging. Among various carbon sources used in this work, Li/air batteries using Ketjenblack (KB) carbon-based air electrodes exhibited the highest specific energy. However, KB-based air electrodes expanded significantly and absorbed much more electrolyte than electrodes made from other carbon sources. The weight distribution of a typical Li/air battery using the KB-based air electrode was dominated by the electrolyte (~70%). Lithium-metal anodes and KB-carbon anodes account for only 5.12% and 5.78% of the battery weight, respectively. We also found that only ~ 20% of the mesopore volume of the air electrode was occupied by reaction products after discharge. To further improve the specific energy of the Li/air batteries, the microstructure of the carbon electrode needs to be further improved to absorb much less electrolyte while still holding significant amounts of reaction products

  1. ambient particulate air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air Pollution Engineering Websites Summary: ORIGINAL ARTICLE Ambient Air Pollution and...

  2. ambient air particulate: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air Pollution Engineering Websites Summary: ORIGINAL ARTICLE Ambient Air Pollution and...

  3. ambient air exposures: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air Pollution Engineering Websites Summary: ORIGINAL ARTICLE Ambient Air Pollution and...

  4. ambient air pollutants: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air Pollution Engineering Websites Summary: ORIGINAL ARTICLE Ambient Air Pollution and...

  5. Solar Powered Radioactive Air Monitoring Stations

    SciTech Connect (OSTI)

    Barnett, J. M.; Bisping, Lynn E.; Gervais, Todd L.

    2013-10-30T23:59:59.000Z

    Environmental monitoring of ambient air for radioactive material is required as stipulated in the PNNL Site radioactive air license. Sampling ambient air at identified preferred locations could not be initially accomplished because utilities were not readily available. Therefore, solar powered environmental monitoring systems were considered as a possible option. PNNL purchased two 24-V DC solar powered environmental monitoring systems which consisted of solar panels, battery banks, and sampling units. During an approximate four month performance evaluation period, the solar stations operated satisfactorily at an on-site test location. They were subsequently relocated to their preferred locations in June 2012 where they continue to function adequately under the conditions found in Richland, Washington.

  6. ambient air particles: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    in AQM Carbon monoxide (CO) Sulfur dioxide (SO2) Nitrogen dioxide Weber, Rodney 5 Detectors for alpha particles and X-rays operating in ambient air in pulse...

  7. Characterization of ambient air pollution for stochastic health models

    SciTech Connect (OSTI)

    Batterman, S.A.

    1981-08-01T23:59:59.000Z

    This research is an analysis of various measures of ambient air pollution useful in cross-sectional epidemiological investigations and rick assessments. The Chestnut Ridge area health effects investigation, which includes a cross-sectional study of respiratory symptoms in young children, is used as a case study. Four large coal-fired electric generating power plants are the dominant pollution sources in this area of western Pennsylvania. The air pollution data base includes four years of sulfur dioxide and five years of total suspended particulate concentrations at seventeen monitors. Some 70 different characterizations of pollution are constructed and tested. These include pollutant concentrations at various percentiles and averaging times, exceedence measures which show the amount of time a specified threshold concentration is exceeded, and several dosage measures which transform non-linear dose-response relationships onto pollutant concentrations.

  8. ambient air pollution: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ambient air pollution First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air...

  9. FAST-RESPONSE ISOTOPIC ALPHA CONTINUOUS AIR MONITOR (CAM)

    SciTech Connect (OSTI)

    Keith D. Patch

    2000-04-28T23:59:59.000Z

    The objective of this effort is to develop and test a novel Continuous Air Monitor (CAM) instrument for monitoring alpha-emitting radionuclides, using a technology that can be applied to Continuous Emission Monitoring (CEM) of thermal treatment system off gas streams. The CAM instrument will have very high alpha spectral resolution and provide real-time, on-line monitoring suitable for alerting workers of high concentrations of alpha-emitting radionuclides in the ambient air and for improved control of decontamination, dismantlement, and air emission control equipment. Base Phase I involves the design, development, and preliminary testing of a laboratory-scale instrument. Testing will initially be conducted using naturally-occurring radon progeny in ambient air. In the Optional Phase II, the Base Phase I instrument will be critically evaluated at the Lovelace Respiratory Research Institute (LRRI) with characterized plutonium aerosols; then an improved instrument will be built and field-tested at a suitable DOE site.

  10. Ambient Radon-222 Monitoring in Amargosa Valley, Nevada

    SciTech Connect (OSTI)

    L.H. Karr; J.J. Tappen; D. Shafer; K.J. Gray

    2008-06-05T23:59:59.000Z

    As part of a program to characterize and baseline selected environmental parameters in the region around the proposed repository at Yucca Mountain, Nevada, ambient radon-222 monitoring was conducted in the rural community of Amargosa Valley, the community closest to the proposed repository site. Passive integrating radon monitors and a continuous radon monitoring instrument were deployed adjacent to the Community Environmental Monitoring Program (CEMP) (http://www.cemp.dri.edu/index.html) station located in the Amargosa Valley Community Center near the library. The CEMP station provided real-time ambient gamma exposure and meteorological data used to correct the integrated radon measurements as well as verify meteorological data collected by the continuous radon monitoring instrument. Additionally, different types of environmental enclosures that housed the monitors and instrument were used to determine if particular designs influenced the ambient radon measurements.

  11. Personal and Ambient Air Pollution is Associated with Increased Exhaled Nitric Oxide in Children with Asthma

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    in pediatric asthmatics and air pollution: differences inwith peak particulate air pollution and effect modificationnitric oxide, ambient air pollution and respiratory health

  12. Chemical reactivities of ambient air samples in three Southern California communities

    E-Print Network [OSTI]

    2015-01-01T23:59:59.000Z

    like substances in air pollution particulates correalte withcontrol of ambient urban air pollution. Atmos. Environ. 91:of oxidative stress by air pollution mixtures. The PM 2.5

  13. Measurement of ozone in ambient air with microsensors : on-site campaign Isabelle ZDANEVITCH*. Nicolas MOSER**, Caroline CHARPENTIER*, Alexis MOQUET*,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Measurement of ozone in ambient air with microsensors : on-site campaign Isabelle ZDANEVITCH, Switzerland E-mail : Isabelle.Zdanevitch(a),iner is.fr (corresponding author) ABSTRACT Ozone is actually one by continuous monitors but a better information on ozone levels would be given by a denser monitoring network

  14. ambient air pollution comparison: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ambient air pollution comparison First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE...

  15. Reflecting the Revised PM 2.5 National Ambient Air Quality Standard...

    Broader source: Energy.gov (indexed) [DOE]

    Reflecting the Revised PM 2.5 National Ambient Air Quality Standard in NEPA Evaluations Reflecting the Revised PM 2.5 National Ambient Air Quality Standard in NEPA Evaluations This...

  16. ambient air quality-a: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air Pollution Engineering Websites Summary: ORIGINAL ARTICLE Ambient Air Pollution and...

  17. Chapter 51 Attainment and Maintenance of the National Ambient Air Quality Standards (Kentucky)

    Broader source: Energy.gov [DOE]

    Kentucky Administrative Regulation Chapter 51, entitled Attainment and Maintenance of the National Ambient Air Quality Standards, is promulgated under the authority of the Division of Air Quality...

  18. Evaluation of workplace air monitoring locations

    SciTech Connect (OSTI)

    Stoetzel, G.A.; Cicotte, G.R.; Lynch, T.P. (Pacific Northwest Lab., Richland, WA (United States)); Aldrich, L.K. (Westinghouse Hanford Co., Richland, WA (United States))

    1991-10-01T23:59:59.000Z

    Current federal guidance on occupational radiation protection recognizes the importance of conducting air flow studies to assist in the placement of air sampling and monitoring equipment. In support of this, Pacific Northwest Laboratory has provided technical assistance to Westinghouse Hanford Company for the purpose of evaluating the adequacy of air sampling and monitoring locations at selected Hanford facilities. Qualitative air flow studies were performed using smoke aerosols to visually determine air movement. Three examples are provided of how air flow studies results, along with information on the purpose of the air sample being collected, were used as a guide in placing the air samplers and monitors. Preparatory steps in conducting an air flow study should include: (1) identifying type of work performed in the work area including any actual or potential release points; (2) determining the amounts of radioactive material available for release and its chemical and physical form; (3) obtaining accurate work area descriptions and diagrams; (4) identifying the location of existing air samplers and monitors; (5) documenting physical and ventilation configurations; (6) notifying appropriate staff of the test; and (7) obtaining necessary equipment and supplies. The primary steps in conducting an air flow study are measurements of air velocities in the work area, release of the smoke aerosol at selected locations in the work area and the observation of air flow patterns, and finally evaluation and documentation of the results. 2 refs., 3 figs.

  19. A survey of an air monitoring program

    SciTech Connect (OSTI)

    Lee, M.B.

    1997-08-01T23:59:59.000Z

    The objective of this report is to compare personal air sampling data to stationary air sampling data and to bioassay data that was taken during the decontamination and decommissioning of sixty-one plutonium glove boxes at Argonne National Laboratory (ANL) in 1995. An air monitoring program administered at Argonne National Laboratory was assessed by comparing personal air sampler (PAS) data, stationary air sampler (SAS) data, and bioassay data. The study revealed that the PAS and SAS techniques were equivalent when averaged over all employees and all workdays, but the standard deviation was large. Also, large deviations were observed in individual samples. The correlation between individual PAS results and bioassay results was low. Personal air samplers and bioassay monitoring played complementary roles in assessing the workplace and estimating intakes. The PAS technique is adequate for detection and evaluation of contaminated atmospheres, whereas bioassay monitoring is better for determining individual intakes.

  20. Comparison of Ambient Radon Concentrations in Air in the Northern Mojave Desert from Continuous and Integrating Instruments

    SciTech Connect (OSTI)

    David S. Shafer; David McGraw; Lynn H. Karr; Greg McCurdy; Tammy L. Kluesner; Karen J. Gray; Jeffrey Tappen

    2010-05-18T23:59:59.000Z

    As part of a program to characterize and baseline environmental parameters, ambient radon-222 (Rn) monitoring was conducted in the rural community of Amargosa Valley, NV, the closest community to Yucca Mountain. Passive integrating and continuous Rn monitoring instruments were deployed adjacent to the Community Environmental Monitoring Program (CEMP) station in Amargosa Valley. The CEMP station provided real-time ambient gamma exposure and meteorological data used to correct the integrated Rn measurements, verified the meteorological data collected by the continuous Rn monitoring instrument, and for provided instrumentation for evaluating the relationships between meteorological conditions and Rn concentrations. Hourly Rn concentrations in air measured by the continuous Rn monitoring instrument (AlphaGUARD®) were compared to the average hourly values for the integrating Rn measurements (E-PERM®) by dividing the total Rn measurements by the number of hours the instruments were deployed. The results of the comparison indicated that average hourly ambient Rn concentrations as measured by both methods ranged from 0.2 to 0.4 pico-curies per liter of air. Ambient Rn values for the AlphaGUARD exhibited diurnal variations. When Rn concentrations were compared with measurements of temperature (T), barometric pressure, and relative humidity, the correlation (inversely) was highest with T, albeit weakly.

  1. Volcanic gas emissions and their effect on ambient air character

    SciTech Connect (OSTI)

    Sutton, A.J. [Geological Survey, Menlo Park, CA (United States); Elias, T. [Geological Survey, Hawaii National Park, HI (United States). Hawaiian Volcano Observatory

    1994-01-01T23:59:59.000Z

    This bibliography was assembled to service an agreement between Department of Energy and the USGS to provide a body of references and useful annotations for understanding background gas emissions from Kilauea volcano. The current East Rift Zone (ERZ) eruption of Kilauea releases as much as 500,000 metric tonnes of SO{sub 2} annually, along with lesser amounts of other chemically and radiatively active species including H{sub 2}S, HCl, and HF. Primary degassing locations on Kilauea are located in the summit caldera and along the middle ERZ. The effects of these emissions on ambient air character are a complex function of chemical reactivity, source geometry and effusivity, and local meteorology. Because of this complexity, we organized the bibliography into three main sections: (1) characterizing gases as they leave the edifice; (2) characterizing gases and chemical reaction products away from degassing sources; and (3) Hawaii Island meteorology.

  2. Room air monitor for radioactive aerosols

    DOE Patents [OSTI]

    Balmer, David K. (Broomfield, CO); Tyree, William H. (Boulder, CO)

    1989-04-11T23:59:59.000Z

    A housing assembly for use with a room air monitor for simultaneous collection and counting of suspended particles includes a casing containing a combination detector-preamplifier system at one end, a filter system at the other end, and an air flow system consisting of an air inlet formed in the casing between the detector-preamplifier system and the filter system and an air passageway extending from the air inlet through the casing and out the end opposite the detector-preamplifier combination. The filter system collects suspended particles transported directly through the housing by means of the air flow system, and these particles are detected and examined for radioactivity by the detector-pre The U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP03533 between the Department of Energy and Rockwell International Corporation.

  3. Room air monitor for radioactive aerosols

    DOE Patents [OSTI]

    Balmer, D.K.; Tyree, W.H.

    1987-03-23T23:59:59.000Z

    A housing assembly for use with a room air monitor for simultaneous collection and counting of suspended particles includes a casing containing a combination detector-preamplifier system at one end, a filter system at the other end, and an air flow system consisting of an air inlet formed in the casing between the detector-preamplifier system and the filter system and an air passageway extending from the air inlet through the casing and out the end opposite the detector-preamplifier combination. The filter system collects suspended particles transported directly through the housing by means of the air flow system, and these particles are detected and examined for radioactivity by the detector-preamplifier combination. 2 figs.

  4. The CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong Park, William Griswold and Tajana Simuni Rosing

    E-Print Network [OSTI]

    Simunic, Tajana

    conditions than the national ambient air quality standard [1]. Current air pollutant measurement networks. For example, The San Diego Air Pollution Control District (SDAPCD) maintains only five air pollutant samplingThe CitiSense Air Quality Monitoring Mobile Sensor Node Piero Zappi, Elizabeth Bales, Jing Hong

  5. Effect of shockwave-induced density jump on laser plasma interactions in low-pressure ambient air

    E-Print Network [OSTI]

    Tillack, Mark

    1 Effect of shockwave-induced density jump on laser plasma interactions in low-pressure ambient air jump were investigated in low- pressure ambient air during the laser pulse using an optical interferometer. A tiny shockwave-induced density jump could be observed clearly in ambient air with pressure

  6. Economic and energetic analysis of capturing CO2 from ambient air

    E-Print Network [OSTI]

    Economic and energetic analysis of capturing CO2 from ambient air Kurt Zenz Housea,b,1 , Antonio C for review August 20, 2010) Capturing carbon dioxide from the atmosphere ("air capture") in an industrial suggest these air capture systems may cost a few hundred dollars per tonne of CO2, making it cost

  7. ambient air zinc: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Air Pressure CERN Preprints Summary: Recent experiments on coating flows and liquid drop impact both demonstrate that wetting failures caused by air entrainment can be suppressed...

  8. Technical comments on EPA`s proposed revisions to the National Ambient Air Quality Standard for particulate matter

    SciTech Connect (OSTI)

    Lipfert, F.W.

    1997-03-01T23:59:59.000Z

    The US Environmental Protection Agency (EPA) has proposed new ambient air quality standards specifically for fine particulate matter, regulating concentrations of particles with median aerodynamic diameters less than 2.5 {mu}m (PM{sub 2.5}). Two new standards have been proposed: a maximum 24-hr concentration that is intended to protect against acute health effects, and an annual concentration limit that is intended to protect against longer-term health effects. EPA has also proposed a slight relaxation of the 24-hr standard for inhalable particles (PM{sub 10}), by allowing additional exceedances each year. Fine particles are currently being indirectly controlled by means of regulations for PM{sub 10} and TSP, under the Clean Air Act of 1970 and subsequent amendments. Although routine monitoring of PM{sub 2.5} is rare and data are sparse, the available data indicate that ambient concentrations have been declining at about 6% per year under existing regulations.

  9. Nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons in the ambient air of two

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons in the ambient air of two;2 Abstract The size distribution of polycyclic aromatic hydrocarbons (PAHs) and PAH derivatives of compounds. Keywords: Polycyclic aromatic hydrocarbons; Nitrated polycyclic aromatic hydrocarbons; Oxygenated

  10. Nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons in the ambient air of two

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons in the ambient air of two aromatic hydrocarbons, 17 nitrated PAHs (NPAHs) and 8 oxygenated PAHs (OPAHs) were carried out during hydrocarbons; Nitrated polycyclic aromatic hydrocarbons; Oxygenated polycyclic aromatic hydrocarbons

  11. Test plan for air monitoring during the Cryogenic Retrieval Demonstration

    SciTech Connect (OSTI)

    Yokuda, E.

    1992-06-01T23:59:59.000Z

    This report presents a test plan for air monitoring during the Cryogenic Retrieval Demonstration (CRD). Air monitors will be used to sample for the tracer elements neodymium, terbium, and ytterbium, and dysprosium. The results from this air monitoring will be used to determine if the CRD is successful in controlling dust and minimizing contamination. Procedures and equipment specifications for the test are included.

  12. Effect of Ambient Design Temperature on Air-Cooled Binary Plant Output

    SciTech Connect (OSTI)

    Dan Wendt; Greg Mines

    2011-10-01T23:59:59.000Z

    Air-cooled binary plants are designed to provide a specified level of power production at a particular air temperature. Nominally this air temperature is the annual mean or average air temperature for the plant location. This study investigates the effect that changing the design air temperature has on power generation for an air-cooled binary plant producing power from a resource with a declining production fluid temperature and fluctuating ambient temperatures. This analysis was performed for plants operating both with and without a geothermal fluid outlet temperature limit. Aspen Plus process simulation software was used to develop optimal air-cooled binary plant designs for specific ambient temperatures as well as to rate the performance of the plant designs at off-design operating conditions. Results include calculation of annual and plant lifetime power generation as well as evaluation of plant operating characteristics, such as improved power generation capabilities during summer months when electric power prices are at peak levels.

  13. Continuous Air Monitor Operating Experience Review

    SciTech Connect (OSTI)

    L. C. Cadwallader; S. A. Bruyere

    2008-09-01T23:59:59.000Z

    Continuous air monitors (CAMs) are used to sense radioactive particulates in room air of nuclear facilities. CAMs alert personnel of potential inhalation exposures to radionuclides and can also actuate room ventilation isolation for public and environmental protection. This paper presents the results of a CAM operating experience review of the DOE Occurrence Reporting and Processing System (ORPS) database from the past 18 years. Regulations regarding these monitors are briefly reviewed. CAM location selection and operation are briefly discussed. Operating experiences reported by the U.S. Department of Energy and in other literature sources were reviewed to determine the strengths and weaknesses of these monitors. Power losses, human errors, and mechanical issues cause the majority of failures. The average “all modes” failure rate is 2.65E-05/hr. Repair time estimates vary from an average repair time of 9 hours (with spare parts on hand) to 252 hours (without spare parts on hand). These data should support the use of CAMs in any nuclear facility, including the National Ignition Facility and the international ITER experiment.

  14. Pulmonary function and respiratory symptoms of school children exposed to ambient air pollution

    SciTech Connect (OSTI)

    Kim, Yoon Shin; Ko, Ung Ring [Hanyang Univ., Seoul (Korea, Republic of)

    1996-12-31T23:59:59.000Z

    This study was undertaken to evaluate the health effect of air pollution on pulmonary function and respiratory symptoms of Korean school children between 7 and 10 years of age during November 1995-January 1996. A standard respiratory symptom questionnaire was administered and spirometry was performed to examine pulmonary function of 121 children in an urban polluted area, Seoul, and of 119 children in non-polluted area, Sokcho, respectively. There was significant difference in the level of pulmonary function [forced expiratory volume in second (FEV{sub 1.0}) and forced vital capacity (FVC)] between exposed groups to polluted area and non-polluted area. Parental smoking was significantly related to respiratory symptoms of cough, phlegm, and the level of pulmonary function. The observed changes in FEV{sub 1.0} and FVC seemed to relate to home cooking fuel, not to respiratory symptoms. The additional longitudinal work that carefully monitors ambient and indoor air pollution and health effects data should be conducted to confirm these results.

  15. ambient air sampling: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of California eScholarship Repository Summary: chamber, passive sampling, passive solar house, measurementhouse, we planed the distribution of fresh air, passivepassive...

  16. In-line real time air monitor

    DOE Patents [OSTI]

    Wise, Marcus B. (Kingston, TN); Thompson, Cyril V. (Knoxville, TN)

    1998-01-01T23:59:59.000Z

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds.

  17. In-line real time air monitor

    DOE Patents [OSTI]

    Wise, M.B.; Thompson, C.V.

    1998-07-14T23:59:59.000Z

    An in-line gas monitor capable of accurate gas composition analysis in a continuous real time manner even under strong applied vacuum conditions operates by mixing an air sample with helium forming a sample gas in two complementary sample loops embedded in a manifold which includes two pairs of 3-way solenoid valves. The sample gas is then analyzed in an ion trap mass spectrometer on a continuous basis. Two valve drivers actuate the two pairs of 3-way valves in a reciprocating fashion, so that there is always flow through the in-line gas monitor via one or the other of the sample loops. The duty cycle for the two pairs of 3-way valves is varied by tuning the two valve drivers to a duty cycle typically between 0.2 to 0.7 seconds. 3 figs.

  18. Continuous air monitor filter changeout apparatus

    DOE Patents [OSTI]

    Rodgers, John C. (Santa Fe, NM)

    2008-07-15T23:59:59.000Z

    An apparatus and corresponding method for automatically changing out a filter cartridge in a continuous air monitor. The apparatus includes: a first container sized to hold filter cartridge replacements; a second container sized to hold used filter cartridges; a transport insert connectively attached to the first and second containers; a shuttle block, sized to hold the filter cartridges that is located within the transport insert; a transport driver mechanism means used to supply a motive force to move the shuttle block within the transport insert; and, a control means for operating the transport driver mechanism.

  19. air ambient temperature: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    It not only impacts the thermal comfort of occupants, but also also greatly affects the energy consumption in air conditioning systems. The lower the indoor... Yao, Y.; Lian, Z.;...

  20. ambient air temperature: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    It not only impacts the thermal comfort of occupants, but also also greatly affects the energy consumption in air conditioning systems. The lower the indoor... Yao, Y.; Lian, Z.;...

  1. ambient air concentrations: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    transfer fluid that uses air as the heat transfer fluid is proposed for a novel solar trough concentrator design. A numerical heat transfer model is developed to determine the...

  2. ambient air quality: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dynamics in the South Coast Air Basin of California. It has also been modified to model pollution in South Korea, Mexico Manohar, Rajit First Page Previous Page 1 2 3 4 5 6 7 8 9...

  3. Inhalation intake of ambient air pollution in California's South Coast Air Basin

    E-Print Network [OSTI]

    Marshall, Julian D.; Granvold, Patrick W.; Hoats, Abigail S.; McKone, Thomas E.; Deakin, Elizabeth; Nazaroff, William W.

    2006-01-01T23:59:59.000Z

    survey data, and the air-pollution modeling group at Environfor vehicle-related air pollution exposure in minority andtotal health impact of air pollution. Urban planners often

  4. A Non-Intrusive Monitoring System for Ambient Assisted Living Service Delivery

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Non-Intrusive Monitoring System for Ambient Assisted Living Service Delivery Willy All : Italy (2012)" #12;2 A Non-Intrusive Monitoring System for AAL Service Delivery Previous works from [6 is intrusive, and the massive deployment of sensors in the environment which implies a significant financial

  5. ambient radioactivity monitoring: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    performed in the Gran Sasso Laboratory (LNGS) by detecting the gamma rays from the radon progeny. The motivation was to monitor the stability of radioactivity measuring several...

  6. Ambient monitoring of pollutants around synfuel plants : final report

    E-Print Network [OSTI]

    Golomb, D.

    1984-01-01T23:59:59.000Z

    This study was undertaken to aid in the evaluation of Environmental Monitoring Plans (EMP) submitted to the U.S. Synfuel Corporation by prospective operators of large-scale synfuel plants who are applying for financial ...

  7. PREV'AIR, a platform for air quality monitoring and fore-, Menut, L.2

    E-Print Network [OSTI]

    Menut, Laurent

    PREV'AIR, a platform for air quality monitoring and fore- casting Honoré C.1 , Menut, L.2, France 4 ADEME, Paris, France 5 CNRM Meteo-France, Toulouse, France 1 Introduction Since 2003, the PREV'AIR system has been delivering an information about air quality, dedicated to any people or organisation

  8. Abatement of Air Pollution: Air Pollution Control Equipment and Monitoring Equipment Operation (Connecticut)

    Broader source: Energy.gov [DOE]

    These regulations contain instructions for the operation and monitoring of air pollution control equipment, as well as comments on procedures in the event of equipment breakdown, failure, and...

  9. COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

    SciTech Connect (OSTI)

    Robinson P. Khosah; John P. Shimshock; Jerry L. Penland

    2004-10-15T23:59:59.000Z

    Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), which included the establishment and operation of four ambient air monitoring sites located in the Upper Ohio River Valley (UORV). Two urban and two rural monitoring sites were included in the UORVP. The four sites selected for the UOVRP were collocated at existing local and/or state air quality monitoring stations. The goal of the UORVP was to characterize the nature and composition of PM{sub 2.5} and its precursor gases. In the process, the objectives of the UORVP were to examine the ambient air concentrations of PM{sub 2.5} as compared with the promulgated PM{sub 2.5} standards, the geographical, seasonal and temporal variations of ambient air concentrations of PM{sub 2.5}, the primary chemical constituents of PM{sub 2.5}, and the correlations between ambient air concentrations of PM{sub 2.5} and its precursor gases, other gaseous pollutants and meteorological parameters. A variety of meteorological and pollutant measurement devices, including several different PM{sub 2.5} samplers that provided either real-time or integrated concentration data, were deployed at the monitoring sites. The frequency of integrated sampling varied throughout the UORVP study period and was as follows: ''Intensive'' sampling periods were defined as periods in which samples were collected on a relatively frequent basis (ranged from 6-hour integrated samples collected round-the-clock to one 24-hour integrated sample collected every third day). ''Background'' sampling periods were defined as periods in which 24-hour integrated samples were collected every third or sixth day.

  10. SmartTecO: Context-Based Ambient Sensing and Monitoring for Optimizing Energy Consumption

    E-Print Network [OSTI]

    Beigl, Michael

    SmartTecO: Context-Based Ambient Sensing and Monitoring for Optimizing Energy Consumption Yong Ding networks and a context awareness system, the acquired data will be interpreted into different energy the actuation mod- ule a certain context, which allows managing and saving the energy consumption of home

  11. air pollutant monitoring: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 A Wireless Sensor Network Air Pollution Monitoring System CERN Preprints Summary: Sensor networks are currently an...

  12. air pollution monitoring: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 A Wireless Sensor Network Air Pollution Monitoring System CERN Preprints Summary: Sensor networks are currently an...

  13. A Wireless Sensor Network Air Pollution Monitoring System

    E-Print Network [OSTI]

    Khedo, Kavi K; Mungur, Avinash; Mauritius, University of; Mauritius,; 10.5121/ijwmn.2010.2203

    2010-01-01T23:59:59.000Z

    Sensor networks are currently an active research area mainly due to the potential of their applications. In this paper we investigate the use of Wireless Sensor Networks (WSN) for air pollution monitoring in Mauritius. With the fast growing industrial activities on the island, the problem of air pollution is becoming a major concern for the health of the population. We proposed an innovative system named Wireless Sensor Network Air Pollution Monitoring System (WAPMS) to monitor air pollution in Mauritius through the use of wireless sensors deployed in huge numbers around the island. The proposed system makes use of an Air Quality Index (AQI) which is presently not available in Mauritius. In order to improve the efficiency of WAPMS, we have designed and implemented a new data aggregation algorithm named Recursive Converging Quartiles (RCQ). The algorithm is used to merge data to eliminate duplicates, filter out invalid readings and summarise them into a simpler form which significantly reduce the amount of dat...

  14. air pollution monitors: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    air pollution monitors First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 A Wireless Sensor Network Air...

  15. TRACKING THE LITTLE BLACK "RAIN" CLOUDS: AN ENVIRO-ECONOMIC ANALYSIS OF AMBIENT AIR POLLUTION EFFECTS ON PEDIATRIC

    E-Print Network [OSTI]

    Maxwell, Bruce D.

    TRACKING THE LITTLE BLACK "RAIN" CLOUDS: AN ENVIRO-ECONOMIC ANALYSIS OF AMBIENT AIR POLLUTION Pollution and Respiratory Health Branch were wonderful research hosts and helpful model critics. Thank you

  16. Environmental continuous air monitor inlet with combined preseparator and virtual impactor

    DOE Patents [OSTI]

    Rodgers, John C. (Santa Fe, NM)

    2007-06-19T23:59:59.000Z

    An inlet for an environmental air monitor is described wherein a pre-separator interfaces with ambient environment air and removes debris and insects commonly associated with high wind outdoors and a deflector plate in communication with incoming air from the pre-separator stage, that directs the air radially and downward uniformly into a plurality of accelerator jets located in a manifold of a virtual impactor, the manifold being cylindrical and having a top, a base, and a wall, with the plurality of accelerator jets being located in the top of the manifold and receiving the directed air and accelerating directed air, thereby creating jets of air penetrating into the manifold, where a major flow is deflected to the walls of the manifold and extracted through ports in the walls. A plurality of receiver nozzles are located in the base of the manifold coaxial with the accelerator jets, and a plurality of matching flow restrictor elements are located in the plurality of receiver nozzles for balancing and equalizing the total minor flow among all the plurality of receiver nozzles, through which a lower, fractional flow extracts large particle constituents of the air for collection on a sample filter after passing through the plurality of receiver nozzles and the plurality of matching flow restrictor elements.

  17. Concepts for Environmental Radioactive Air Sampling and Monitoring

    SciTech Connect (OSTI)

    Barnett, J. M.

    2011-11-04T23:59:59.000Z

    Environmental radioactive air sampling and monitoring is becoming increasingly important as regulatory agencies promulgate requirements for the measurement and quantification of radioactive contaminants. While researchers add to the growing body of knowledge in this area, events such as earthquakes and tsunamis demonstrate how nuclear systems can be compromised. The result is the need for adequate environmental monitoring to assure the public of their safety and to assist emergency workers in their response. Two forms of radioactive air monitoring include direct effluent measurements and environmental surveillance. This chapter presents basic concepts for direct effluent sampling and environmental surveillance of radioactive air emissions, including information on establishing the basis for sampling and/or monitoring, criteria for sampling media and sample analysis, reporting and compliance, and continual improvement.

  18. Performance assessment on continuous air monitors under real operating conditions

    SciTech Connect (OSTI)

    Monsanglant-Louvet, C.; Liatimi, N.; Gensdarmes, F. [Inst. of Radioprotection and Nuclear Safety- IRSN, Saclay (France)

    2011-07-01T23:59:59.000Z

    In the nuclear industry, workers may be exposed to artificial radioactive aerosols. These aerosols are generally composed of particles with a diameter measuring between 0.1 {mu}m and 10 {mu}m. To protect workers in nuclear facilities, monitors that continuously measure radioactivity in the air are used. The main function of the monitor is to provide real-time measurement of activity concentration. Measurement of aerosol activity concentration can be affected by a number of factors specific to the aerosols and the instrument. The first part of the article will present the general operating principles of continuous air monitors (CAMs) and inherent measurement difficulties, as well as the main standard tests. The second section describes the experimental ICARE facility The ICARE facility generates standard artificial and natural radioactive aerosols for calibrating continuous air monitors under real operating conditions. (authors)

  19. Air Monitoring of Emissions from the Fukushima Daiichi Reactor

    SciTech Connect (OSTI)

    McNaughton, Michael [Los Alamos National Laboratory; Allen, Shannon P. [Los Alamos National Laboratory; Archuleta, Debra C. [Los Alamos National Laboratory; Brock, Burgandy [Los Alamos National Laboratory; Coronado, Melissa A. [Los Alamos National Laboratory; Dewart, Jean M. [Los Alamos National Laboratory; Eisele, William F. Jr. [Los Alamos National Laboratory; Fuehne, David P. [Los Alamos National Laboratory; Gadd, Milan S. [Los Alamos National Laboratory; Green, Andrew A. [Los Alamos National Laboratory; Lujan, Joan J. [Los Alamos National Laboratory; MacDonell, Carolyn [Los Alamos National Laboratory; Whicker, Jeffrey J. [Los Alamos National Laboratory

    2012-06-12T23:59:59.000Z

    In response to the disasters in Japan on March 11, 2011, and the subsequent emissions from Fukushima-Daiichi, we monitored the air near Los Alamos using four air-monitoring systems: the standard AIRNET samplers, the standard rad-NESHAP samplers, the NEWNET system, and high-volume air samplers. Each of these systems has advantages and disadvantages. In combination, they provide a comprehensive set of measurements of airborne radionuclides near Los Alamos during the weeks following March 11. We report air-monitoring measurements of the fission products released from the Fukushima-Daiichi nuclear-power-plant accident in 2011. Clear gamma-spectrometry peaks were observed from Cs-134, Cs-136, Cs-137, I-131, I132, Te-132, and Te-129m. These data, together with measurements of other radionuclides, are adequate for an assessment and assure us that radionuclides from Fukushima Daiichi did not present a threat to human health at or near Los Alamos. The data demonstrate the capabilities of the Los Alamos air-monitoring systems.

  20. Tonopah Test Range Air Monitoring: CY2013 Meteorological, Radiological, and Airborne Particulate Observations

    SciTech Connect (OSTI)

    Mizell, Steve A [DRI; Nikolich, George [DRI; Shadel, Craig [DRI; McCurdy, Greg [DRI; Etyemezian, Vicken [DRI; Miller, Julianne J [DRI

    2014-10-01T23:59:59.000Z

    In 1963, the U.S. Department of Energy (DOE) (formerly the Atomic Energy Commission [AEC]), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range). This test resulted in radionuclide-contaminated soils at Clean Slate I, II, and III. This report documents observations made during on-going monitoring of radiological, meteorological, and dust conditions at stations installed adjacent to Clean Slate I and Clean Slate III and at the TTR Range Operations Control center. The primary objective of the monitoring effort is to determine if winds blowing across the Clean Slate sites are transporting particles of radionuclide-contaminated soils beyond both the physical and administrative boundaries of the sites. Results for the calendar year (CY) 2013 monitoring include: (1) the gross alpha and gross beta values from the monitoring stations are approximately equivalent to the highest values observed during the CY2012 reporting at the surrounding Community Environmental Monitoring Program (CEMP) stations (this was the latest documented data available at the time of this writing); (2) only naturally occurring radionuclides were identified in the gamma spectral analyses; (3) the ambient gamma radiation measurements indicate that the average annual gamma exposure is similar at all three monitoring stations and periodic intervals of increased gamma values appear to be associated with storm fronts passing through the area; and (4) the concentrations of both resuspended dust and saltated sand particles generally increase with increasing wind speed. However, differences in the observed dust concentrations are likely due to differences in the soil characteristics immediately adjacent to the monitoring stations. Neither the resuspended particulate radiological analyses nor the ambient gamma radiation measurements suggest wind transport of radionuclide-contaminated soils.

  1. Environmental resources of selected areas of Hawaii: Climate, ambient air quality, and noise

    SciTech Connect (OSTI)

    Lombardi, D.A.; Blasing, T.J.; Easterly, C.E.; Reed, R.M. [Oak Ridge National Lab., TN (United States); Hamilton, C.B. [Univ. of Tennessee, Knoxville, TN (United States)

    1995-03-01T23:59:59.000Z

    This report has been prepared to make available and archive background scientific data and related information on climate, ambient air quality, and ambient noise levels collected during the preparation of the environmental impact statement (EIS) for Phases 3 and 4 of the Hawaii Geothermal Project (HGP) as defined by the state of Hawaii in its April 1989 proposal to Congress. The US Department of Energy (DOE) published a notice withdrawing its Notice of Intent to prepare the HGP-EIS. Since the state of Hawaii is no longer pursuing or planning to pursue the HGP, DOE considers the project to be terminated. The report presents a general description of the climate add air quality for the islands of Hawaii (henceforth referred to as Hawaii), Maui and Oahu. It also presents a literature review as baseline information on the health effects of sulfide. The scientific background data and related information is being made available for use by others in conducting future scientific research in these areas. This report describes the environmental resources present in the areas studied (i.e., the affected environment) and does not represent an assessment of environmental impacts.

  2. COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

    SciTech Connect (OSTI)

    Robinson P. Khosah; John P. Shimshock; Jerry L. Penland

    2004-04-15T23:59:59.000Z

    Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), which included the establishment and operation of four ambient air monitoring sites located in the Upper Ohio River Valley (UORV). Two urban and two rural monitoring sites were included in the UORVP. The four sites selected for the UOVRP were collocated at existing local and/or state air quality monitoring stations. The goal of the UORVP was to characterize the nature and composition of PM{sub 2.5} and its precursor gases. In the process, the objectives of the UORVP were to examine the ambient air concentrations of PM{sub 2.5} as compared with the promulgated PM{sub 2.5} standards, the geographical, seasonal and temporal variations of ambient air concentrations of PM{sub 2.5}, the primary chemical constituents of PM{sub 2.5}, and the correlations between ambient air concentrations of PM{sub 2.5} and its precursor gases, other gaseous pollutants and meteorological parameters. A variety of meteorological and pollutant measurement devices, including several different PM{sub 2.5} samplers that provided either real-time or integrated concentration data, were deployed at the monitoring sites. The frequency of integrated sampling varied throughout the UORVP study period and was as follows: (1) ''Intensive'' sampling periods were defined as periods in which samples were collected on a relatively frequent basis (ranged from 6-hour integrated samples collected round-the-clock to one 24-hour integrated sample collected every third day). (2) ''Background'' sampling periods were defined as periods in which 24-hour integrated samples were collected every third or sixth day. Sampling activities for the UORVP were initiated in February 1999 and concluded in February 2003. This semi-annual Technical Progress Report summarizes the data analyses and interpretations conducted during the period from October 2003 through March 2004. This report was organized in accordance with the Guidelines for Organization of Technical Reports (September 2003).

  3. COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

    SciTech Connect (OSTI)

    Robinson P. Khosah; John P. Shimshock; Jerry L. Penland

    2004-12-27T23:59:59.000Z

    Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), which included the establishment and operation of four ambient air monitoring sites located in the Upper Ohio River Valley (UORV). Two urban and two rural monitoring sites were included in the UORVP. The four sites selected for the UOVRP were collocated at existing local or state air quality monitoring stations. The goal of the UORVP was to characterize the nature and composition of PM{sub 2.5} and its precursor gases. In the process, the objectives of the UORVP were to examine the ambient air concentrations of PM{sub 2.5} as compared with the promulgated PM{sub 2.5} standards, the geographical, seasonal and temporal variations of ambient air concentrations of PM{sub 2.5}, the primary chemical constituents of PM{sub 2.5}, and the correlations between ambient air concentrations of PM{sub 2.5} and its precursor gases, other gaseous pollutants and meteorological parameters. A variety of meteorological and pollutant measurement devices, including several different PM{sub 2.5} samplers that provided either real-time or integrated concentration data, were deployed at the monitoring sites. The frequency of integrated sampling varied throughout the UORVP study period and was as follows: (1) ''Intensive'' sampling periods were defined as periods in which samples were collected on a relatively frequent basis (ranged from 6-hour integrated samples collected round-the-clock to one 24-hour integrated sample collected every third day). (2) ''Background'' sampling periods were defined as periods in which 24-hour integrated samples were collected every third or sixth day. Sampling activities for the UORVP were initiated in February 1999 and concluded in February 2003. This Final Technical Progress Report summarizes the data analyses and interpretations conducted during the period from October 1998 through December 2004. This report was organized in accordance with the Guidelines for Organization of Technical Reports (September 2003).

  4. Participatory Patterns in an International Air Quality Monitoring Initiative

    E-Print Network [OSTI]

    Sîrbu, Alina; Caminiti, Saverio; De Baets, Bernard; Elen, Bart; Francis, Louise; Gravino, Pietro; Hotho, Andreas; Ingarra, Stefano; Loreto, Vittorio; Molino, Andrea; Mueller, Juergen; Peters, Jan; Ricchiuti, Ferdinando; Saracino, Fabio; Servedio, Vito D P; Stumme, Gerd; Theunis, Jan; Tria, Francesca; Bossche, Joris Van den

    2015-01-01T23:59:59.000Z

    The issue of sustainability is at the top of the political and societal agenda, being considered of extreme importance and urgency. Human individual action impacts the environment both locally (e.g., local air/water quality, noise disturbance) and globally (e.g., climate change, resource use). Urban environments represent a crucial example, with an increasing realization that the most effective way of producing a change is involving the citizens themselves in monitoring campaigns (a citizen science bottom-up approach). This is possible by developing novel technologies and IT infrastructures enabling large citizen participation. Here, in the wider framework of one of the first such projects, we show results from an international competition where citizens were involved in mobile air pollution monitoring using low cost sensing devices, combined with a web-based game to monitor perceived levels of pollution. Measures of shift in perceptions over the course of the campaign are provided, together with insights int...

  5. E-Print Network 3.0 - air monitoring requirements Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    | www.pacinst.org Summary: using flare monitoring data available through the Air District website.2 We use the formal definition... Bay Area Air Quality Management...

  6. Protocols of radiocontaminant air monitoring for inhalation exposure estimates

    SciTech Connect (OSTI)

    Shinn, J.H.

    1995-09-01T23:59:59.000Z

    Monitoring the plutonium and americium particle emissions from soils contaminated during atmospheric nuclear testing or due to accidental releases is important for several reasons. First, it is important to quantify the extent of potential human exposure from inhalation of alpha-emitting particles, which is the major exposure pathway from transuranic radionuclides. Second, the information provided by resuspension monitoring is the basis of criteria that determine the target soil concentrations for management and cleanup of contaminated soil sites. There are other radioactive aerosols, such as the fission products (cesium and strontium) and neutron-activation products (europium isotopes), which may be resuspended and therefore necessary to monitor as well. This Standard Protocol (SP) provides the method used for radiocontaminant air monitoring by the Health and Ecological Assessment Division (formerly Environmental Sciences Division), Lawrence Livermore National Laboratory, as developed and tested at Nevada Test Site (NTS) and in the Marshall Islands. The objective of this SP is to document the applications and methods of monitoring of all the relevant variables. This protocol deals only with measuring air concentrations of radionuclides and total suspended particulates (TSP, or {open_quotes}dust{close_quotes}). A separate protocol presents the more difficult measurements required to determine transuranic aerosol emission rates, or {open_quotes}resuspension rate{close_quotes}.

  7. SNRB{trademark} air toxics monitoring. Final report

    SciTech Connect (OSTI)

    Not Available

    1994-01-01T23:59:59.000Z

    Babcock & Wilcox (B&W) is currently conducting a project under the DOE`s Clean Coal Technology (CCT II) Program to demonstrate its SO{sub x}NO{sub x}-Rox Box{trademark} (SNRB{trademark}) process in a 5 MWe Field Demonstration Unit at Ohio Edison`s R. E. Burger Plant near Shadyside, Ohio. The objective of the SNRB{trademark} Air Toxics Monitoring Project was to provide data on SNRB{trademark} air toxics emissions control performance to B&W and to add to the DOE/EPRI/EPA data base by quantifying the flow rates of selected hazardous substances (or air toxics) in all of the major input and output streams of the SNRB{trademark} process as well as the power plant. Work under the project included the collection and analysis of representative samples of all major input and output streams of the SNRB{trademark} demonstration unit and the power plant, and the subsequent laboratory analysis of these samples to determine the partitioning of the hazardous substances between the various process streams. Material balances for selected air toxics were subsequently calculated around the SNRB{trademark} and host boiler systems, including the removal efficiencies across each of the major air pollution control devices. This report presents results of the SNRB{trademark} Air Toxics Monitoring Project. In addition to the Introduction, a brief description of the test site, including the Boiler No. 8 and the SNRB{trademark} process, is included in Section H. The concentrations of air toxic emissions are presented in Section II according to compound class. Material balances are included in Section IV for three major systems: boiler, electrostatic precipitator, and SNRB{trademark}. Emission factors and removal efficiencies are also presented according to compound class in Sections V and VI, respectively. A data evaluation is provided in Section VII.

  8. Acoustic-wave sensor for ambient monitoring of a photoresist-stripping agent

    DOE Patents [OSTI]

    Pfeifer, Kent B. (Los Lunas, NM); Hoyt, Andrea E. (Albuquerque, NM); Frye, Gregory C. (Cedar Crest, NM)

    1998-01-01T23:59:59.000Z

    The acoustic-wave sensor. The acoustic-wave sensor is designed for ambient or vapor-phase monitoring of a photoresist-stripping agent such as N-methylpyrrolidinone (NMP), ethoxyethylpropionate (EEP) or the like. The acoustic-wave sensor comprises an acoustic-wave device such as a surface-acoustic-wave (SAW) device, a flexural-plate-wave (FPW) device, an acoustic-plate-mode (APM) device, or a thickness-shear-mode (TSM) device (also termed a quartz crystal microbalance or QCM) having a sensing region on a surface thereof. The sensing region includes a sensing film for sorbing a quantity of the photoresist-stripping agent, thereby altering or shifting a frequency of oscillation of an acoustic wave propagating through the sensing region for indicating an ambient concentration of the agent. According to preferred embodiments of the invention, the acoustic-wave device is a SAW device; and the sensing film comprises poly(vinylacetate), poly(N-vinylpyrrolidinone), or poly(vinylphenol).

  9. Acoustic-wave sensor for ambient monitoring of a photoresist-stripping agent

    DOE Patents [OSTI]

    Pfeifer, K.B.; Hoyt, A.E.; Frye, G.C.

    1998-08-18T23:59:59.000Z

    The acoustic-wave sensor is disclosed. The acoustic-wave sensor is designed for ambient or vapor-phase monitoring of a photoresist-stripping agent such as N-methylpyrrolidinone (NMP), ethoxyethylpropionate (EEP) or the like. The acoustic-wave sensor comprises an acoustic-wave device such as a surface-acoustic-wave (SAW) device, a flexural-plate-wave (FPW) device, an acoustic-plate-mode (APM) device, or a thickness-shear-mode (TSM) device (also termed a quartz crystal microbalance or QCM) having a sensing region on a surface thereof. The sensing region includes a sensing film for sorbing a quantity of the photoresist-stripping agent, thereby altering or shifting a frequency of oscillation of an acoustic wave propagating through the sensing region for indicating an ambient concentration of the agent. According to preferred embodiments of the invention, the acoustic-wave device is a SAW device; and the sensing film comprises poly(vinylacetate), poly(N-vinylpyrrolidinone), or poly(vinylphenol). 3 figs.

  10. Comparison of continuous air monitor utilization: A case study

    SciTech Connect (OSTI)

    Rodgers, J.C.; Whicker, J.J.; Voss, J.T.

    1997-08-01T23:59:59.000Z

    The Chemical Metallurgy Research (CMR) building has been upgrading to different continuous air monitors (CAMs) over the past several years. During the transition, both the newer and older CAMs were positioned in the rooms for field testing and comparison. On December 19, 1996, an accidental release of plutonium aerosol occurred into a laboratory in the CMR building. The event occurred while the room was unoccupied, and no personnel were exposed from this incident. There were two fixed air samplers (FASs) and three CAMs operating in the room at the time the release occurred, including two of the recently installed Canberra Alpha Sentry CAMs and one older Eberline CAM. The apparent cause of the release was a procedure carried out in the basement involving the replacement of the HEPA filter in the ventilation exhaust of a slot-box in the laboratory. For a short period, the ventilation was disconnected from the slot-box in this room, but not from the chemical hood exhaust on the opposite side of the laboratory. Therefore, a condition was created where backflow could occur out of the slot-box and into the room. Eventually all three CAMs in the room alarmed, and the situation was successfully monitored and brought under control by health physics personnel. Data on CAM performance were logged, and Pu activity collected on CAM and FAS filters were measured. A comparison of the new and old continuous air monitoring programs was performed and many interesting lessons on CAM performance and CAM utilization were learned. Overall, this comparison showed the advantages of remote monitoring, timely spectral information, and concentration measurements resolved in time and space.

  11. Effects of ambient humidity on the energy use of air conditioning equipment

    E-Print Network [OSTI]

    White, Justin George

    2010-01-01T23:59:59.000Z

    temperatures for high ambient wet bulb period of 6AM Sep 01,10 Figure 3.1: Comparison of dry bulb and relative humiditytemperatures for low ambient wet bulb period of 6AM Jan 06,

  12. Ambient air pollution exposure and full-term birth weight in California

    E-Print Network [OSTI]

    Morello-Frosch, Rachel; Jesdale, Bill M; Sadd, James L; Pastor , Manuel

    2010-01-01T23:59:59.000Z

    P-M, Howel D: Particulate air pollution and fetal health. AX: Association between air pollution and low birth weight: aparticulate matter air pollution and birthweight. Paediatr

  13. Impact of a task-ambient ventilation system on perceived air quality

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    Comfort, perceived air quality, and work performance in aperception of indoor air quality during immediate and longerassessments of indoor air-quality in five European

  14. Personal and Ambient Air Pollution is Associated with Increased Exhaled Nitric Oxide in Children with Asthma

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    indoor, and community air pollution research. Environ Healthasthmatics and air pollution: differences in effects bywith peak particulate air pollution and effect modification

  15. Air quality monitoring and modelling techniques for street canyons: the Paris

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2000-37 Air quality monitoring and modelling techniques for street canyons: the Paris experience S of developing efficient air quality monitoring and modelling methodologies to cover the needs of public health, published in "Air Pollution Conference 2000, Cambridge : United Kingdom (2000)" #12;1 Introduction In recent

  16. Nitrogen dioxide inside and outside 137 homes and implications for ambient air quality standards and health effects research

    SciTech Connect (OSTI)

    Spengler, J.D. (Harvard School of Public Health, Boston, MA); Duffy, C.P.; Letz, R.; Tibbitts, T.W.; Ferris, B.G. Jr.

    1983-03-01T23:59:59.000Z

    Week-long integrated nitrogen dioxide (NO/sub 2/) measurements were made by using diffusion tube samplers inside and outside 137 homes in Portage, WI, over a 1-year period. The annual mean ambient NO/sub 2/ concentrations in this rural community were 10-15 ..mu..g/m/sup 3/. NO/sub 2/ levels inside the kitchens of 112 homes with gas stoves averaged about 50 ..mu..g/m/sup 3/ higher, and bedroom levels were about 30 ..mu..g/m/sup 3/ higher, than outdoor levels. Ten percent of the gas-cooking homes had annual average kitchen NO/sub 2/ levels higher than the National Ambient Air Quality Standard of 100 ..mu..g/m/sup 3/. NO/sub 2/ levels inside kitchens of 25 homes with electric stoves were about two-thirds outdoor levels, while corresponding bedroom levels were one-half outdoor levels. Distinct seasonal patterns (higher indoor levels in winter, lower in summer) consistent with changes in normal air-exchange rates were evident in gas-cooking homes. The large variation of NO/sub 2/ concentrations among homes, likely due to differences in stove use, emission rates, and air-exchange rates, limits the development of prediction models. In addition, this variation would reduce the power of epidemiological studies of respiratory health, which use ambient NO/sub 2/ concentration levels, a simple dichotomous description of stove type and two categories of home cooking fuel to describe exposure.

  17. Ambient air pollution exposure and full-term birth weight in California

    E-Print Network [OSTI]

    Morello-Frosch, Rachel; Jesdale, Bill M; Sadd, James L; Pastor , Manuel

    2010-01-01T23:59:59.000Z

    P-M, Howel D: Particulate air pollution and fetal health. Aindustrial city with high air pollution levels. Arch EnvironJ, Christiani D: Is air pollution a risk factor for low

  18. Monitoring System Used to Optimize Compressed Air System Efficiency, Cut Costs

    E-Print Network [OSTI]

    Holmes, W. A.

    feeders, and major equipment and systems including compressed air. For the compressed air system, monitored data included compressor amps, electrical demand and consumption, pressure and airflow. The resulting UtiliTRACK® reports and graphs showed a...

  19. Technical Basis for Radiological Workplace Air Monitoring and Sampling for the River Corridor Project 300 area

    SciTech Connect (OSTI)

    MANTOOTH, D.S.

    2000-01-17T23:59:59.000Z

    This report documents the technical basis by which the workplace air monitoring and sampling program is operated in the 324 and 327 Buildings.

  20. Sampling precautions for the measurement of nitrated polycyclic aromatic hydrocarbons in ambient air

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Sampling precautions for the measurement of nitrated polycyclic aromatic hydrocarbons in ambient of polycyclic aromatic hydrocarbons (PAHs) and of their oxidation products, such as nitrated and oxygenated PAHs hydrocarbons; Nitrated polycyclic aromatic hydrocarbons; Oxygenated polycyclic aromatic hydrocarbons; Sampling

  1. Air/Superfund national technical guidance study series. Contingency plans at Superfund sites using air monitoring. Final report

    SciTech Connect (OSTI)

    Paul, R.

    1990-09-01T23:59:59.000Z

    Air emissions from remedial or removal activities at Superfund sites can potentially have a significant impact on the health and safety of the individuals living and working around the site. Contingency planning, as defined in the document, encompasses the air program established to protect offsite populations. Monitors for this purpose are usually located at the site perimeter or within the community. The purpose of the document is to: (1) illustrate contingency air monitoring with examples from past projects, and (2) describe how a contingency air monitoring program may be established. The document is illustrative in nature because the application of this type of monitoring is not consistently prescribed in rules and regulations, but is based on professional judgment applied in an analysis of individual sites and particular circumstances.

  2. Nitrogen dioxide inside and outside 137 homes and implications for ambient air quality standards and health effects research

    SciTech Connect (OSTI)

    Spengler, J.D.; Duffy, C.P.; Letz, R.; Tibbitts, T.W.; Ferris, B.G. Jr.

    1983-03-01T23:59:59.000Z

    Week-long integrated nitrogen dioxide (NO/sub 2/) measurements made with diffusion tube samplers inside and outside 137 homes in Portage, Wis., over a 1-year period yielded an annual mean ambient NO/sub 2/ concentration of 0.005-0.008 ppm (10-15 micrograms/m/sub 3/). The large variation of NO/sub 2/ concentrations among homes exhibited by this study was likely due to differences in gas stove use, emission rates, and air-exchange rates, limiting the development of prediction models. In addition, this variation reduces the power of epidemiological studies of respiratory health that use ambient NO/sub 2/ concentration levels, a simple dichotomous description of stove type, and two categories of home cooking fuel to describe exposure.

  3. Nitrogen dioxide inside and outside 137 homes and implications for ambient air quality standards and health effects research

    SciTech Connect (OSTI)

    Spengler, J.D.; Duffy, C.P.; Letz, R.; Tibbitts, T.W.; Ferris, B.G. Jr.

    1983-03-01T23:59:59.000Z

    Week-long integrated nitrogen dioxide (NO/sub 2/) measurements made with diffusion tube samples inside and outside 137 homes in Portage, Wisconsin, over a 1-year period yielded an annual mean ambient NO/sub 2/ concentration of 0.005-0.008 ppm. The large variation of NO/sub 2/ concentrations among homes exhibited by this study was likely due to differences in gas stove use, emission rates, and air-exchange rates, limiting the development of prediction models. In addition, this variation reduces the power of epidemiological studies of respiratory health that use ambient NO/sub 2/ concentration levels, a simple dichotomous description of stove type, and two categories of home cooking fuel to describe exposure.

  4. Economic and energetic analysis of capturing CO[subscript 2] from ambient air

    E-Print Network [OSTI]

    House, Kurt Zenz

    Capturing carbon dioxide from the atmosphere (“air capture”) in an industrial process has been proposed as an option for stabilizing global CO[subscript 2] concentrations. Published analyses suggest these air capture systems ...

  5. Method, system and apparatus for monitoring and adjusting the quality of indoor air

    DOE Patents [OSTI]

    Hartenstein, Steven D.; Tremblay, Paul L.; Fryer, Michael O.; Hohorst, Frederick A.

    2004-03-23T23:59:59.000Z

    A system, method and apparatus is provided for monitoring and adjusting the quality of indoor air. A sensor array senses an air sample from the indoor air and analyzes the air sample to obtain signatures representative of contaminants in the air sample. When the level or type of contaminant poses a threat or hazard to the occupants, the present invention takes corrective actions which may include introducing additional fresh air. The corrective actions taken are intended to promote overall health of personnel, prevent personnel from being overexposed to hazardous contaminants and minimize the cost of operating the HVAC system. The identification of the contaminants is performed by comparing the signatures provided by the sensor array with a database of known signatures. Upon identification, the system takes corrective actions based on the level of contaminant present. The present invention is capable of learning the identity of previously unknown contaminants, which increases its ability to identify contaminants in the future. Indoor air quality is assured by monitoring the contaminants not only in the indoor air, but also in the outdoor air and the air which is to be recirculated. The present invention is easily adaptable to new and existing HVAC systems. In sum, the present invention is able to monitor and adjust the quality of indoor air in real time by sensing the level and type of contaminants present in indoor air, outdoor and recirculated air, providing an intelligent decision about the quality of the air, and minimizing the cost of operating an HVAC system.

  6. An evaluation of European air pollution regulations for particulate matter monitored from a

    E-Print Network [OSTI]

    Sahu, Sujit K

    An evaluation of European air pollution regulations for particulate matter monitored from, stationarity. Abstract Statistical methods are needed for evaluating many aspects of air pollution regu particulate matter (PM) is an important air pollutant for which regu- lations have been issued recently

  7. air quality monitoring: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dynamics in the South Coast Air Basin of California. It has also been modified to model pollution in South Korea, Mexico Manohar, Rajit 102 Predicting Air Quality: Current Status...

  8. Distributed GIS for Monitoring and Modeling Urban Air Quality

    E-Print Network [OSTI]

    Yeang, Chen-Hsiang, 1969-

    The progress of technology has made the measurement of air quality and the simulation of complex air pollution models both feasible and cost-effective. However, there is a long way to go in terms of facilitating widespread ...

  9. Ambient seismic noise monitoring of a clay landslide: Toward failure prediction

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    to such flow-like movements is the increase in water pore pressure in the sliding mass, generating partial. This article shows that the seismic velocity of the sliding material, measured from daily noise correlograms of the sliding layer. These results demonstrate that ambient seismic noise can be used to detect rigidity

  10. Investigating conformance monitoring issues in air traffic control using fault detection approaches

    E-Print Network [OSTI]

    Reynolds, Tom George, 1972-

    2004-01-01T23:59:59.000Z

    In order to maintain Air Traffic Control (ATC) system safety, security and efficiency, conformance monitoring must be performed to ensure that aircraft adhere to their assigned clearances. New Decision Support Tools (DSTs), ...

  11. E-Print Network 3.0 - air monitoring program Sample Search Results

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    OF A DESK-EDGE-MOUNTED TASK VENTILATION SYSTEM Summary: of a personal computer, heat release from a computer monitor and overhead light, and by a recirculating air... In...

  12. Technical Basis for Work Place Air Monitoring for the Plutonium Finishing Plan (PFP)

    SciTech Connect (OSTI)

    JONES, R.A.

    1999-10-06T23:59:59.000Z

    This document establishes the basis for the Plutonium Finishing Plant's (PFP) work place air monitoring program in accordance with the following requirements: Title 10, Code of Federal Regulations (CFR), Part 835 ''Occupational Radiation Protection''; Hanford Site Radiological Control Manual (HSRCM-1); HNF-PRO-33 1, Work Place Air Monitoring; WHC-SD-CP-SAR-021, Plutonium Finishing Plant Final Safety Analysis Report; and Applicable recognized national standards invoked by DOE Orders and Policies.

  13. Human health benefits of ambient sulfate aerosol reductions under Title IV of the 1990 Clean Air Act amendments

    SciTech Connect (OSTI)

    Chestnut, L.G. [Hagler Bailly Consulting, Inc., Boulder, CO (United States); Watkins, A.M. [Environmental Protection Agency, Washington, DC (United States)

    1997-12-31T23:59:59.000Z

    The Acid Rain Provisions (Title IV) of the Clean Air Act Amendments of 1990 call for about a 10 million ton reduction in annual SO{sub 2} emissions in the United States by the year 2010. Although the provisions apply nationwide, most of the reduction will take place in the eastern half of the United States, where use of high sulfur coal for electricity generation is most common. One potentially large benefit of Title IV is the expected reduction in adverse human health effects associated with exposure to ambient sulfate aerosols, a secondary pollutant formed in the atmosphere when SO{sub 2} is present. Sulfate aerosols are a significant constituent of fine particulate (PM{sub 2.5}). This paper combines available epidemiologic evidence of health effects associated with sulfate aerosols and economic estimates of willingness to pay for reductions in risks or incidence of health effects with available estimates of the difference between expected ambient sulfate concentrations in the eastern United States and southeastern Canada with and without Title IV to estimate the expected health benefits of Title IV. The results suggest a mean annual benefit in the eastern United States of $10.6 billion (in 1994 dollars) in 1997 and $40.0 billion in 2010, with an additional $1 billion benefit each year in Ontario and Quebec provinces.

  14. Ultrahigh sensitivity heavy noble gas detectors for long-term monitoring and for monitoring air. Technical status report

    SciTech Connect (OSTI)

    Valentine, J.D.

    1999-01-31T23:59:59.000Z

    The primary objective of this research project is to develop heavy noble gas (krypton, xenon, and radon) detectors for (1) long-term monitoring of transuranic waste, spent fuel, and other uranium and thorium bearing wastes and (2) alpha particle air monitors that discriminate between radon emissions and other alpha emitters. A University of Cincinnati/Argonne National Laboratory (UC/ANL) Team was assembled to complete this detector development project. DOE needs that are addressed by this project include improved long-term monitoring capability and improved air monitoring capability during remedial activities. Successful development and implementation of the proposed detection systems could significantly improve current capabilities with relatively simple and inexpensive equipment.

  15. COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5)DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

    SciTech Connect (OSTI)

    Robinson P. Khosah; John P. Shimshock

    2003-04-30T23:59:59.000Z

    Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), with a goal of characterizing the ambient fine particulate in this region, including examination of urban/rural variations, correlations between PM{sub 2.5} and gaseous pollutants, and influences of artifacts on PM{sub 2.5} measurements in this region. Two urban and two rural monitoring sites were included in the UORVP. The four sites selected were all part of existing local and/or state air quality programs. One urban site was located in the Lawrenceville section of Pittsburgh, Pennsylvania at an air quality monitoring station operated by the Allegheny County Health Department. A second urban site was collocated at a West Virginia Division of Environmental Protection (WVDEP) monitoring station at the airport in Morgantown, West Virginia. One rural site was collocated with the Pennsylvania Department of Environmental Protection (PADEP) at a former NARSTO-Northeast site near Holbrook, Greene County, Pennsylvania. The other rural site was collocated at a site operated by the Ohio Environmental Protection Agency (OHEPA) and managed by the Ohio State Forestry Division in Gifford State Forest near Athens, Ohio. Analysis of data collected to date show that: (1) the median mass and composition of PM{sub 2.5} are similar for both Lawrenceville and Holbrook, suggesting that the sites are impacted more by the regional than by local effects; (2) there was no significant differences in the particulate trending and levels observed at both sites within seasons; (3) sulfate levels predominate at both sites, and (4) PM{sub 2.5} and PM{sub 10} mass concentration levels are consistently higher in summer than in winter, with intermediate levels being observed in the fall and spring. Data analysis focusing on relating the aerometric measurements to local and regional scale emissions of sources of primary and secondary fine particles using receptor-based air quality models will follow.

  16. Environmental radiological monitoring of air, rain, and snow on and near the Hanford Site, 1945-1957

    SciTech Connect (OSTI)

    Hanf, R.W.; Thiede, M.E.

    1994-03-01T23:59:59.000Z

    This report is a result of the Hanford Environmental Dose Reconstruction (HEDR) Project. The goal of the HEDR Project is to estimate the radiation dose that individuals could have received from emissions since 1944 at the Hanford Site near Richland, Washington. Members of the HEDR Project`s Environmental Monitoring Data Task have developed databases of historical environmental measurements of such emissions. Hanford documents were searched for information on the radiological monitoring of air, rain, and snow at and near the Hanford Site in Richland, Washington. The monitoring information was reviewed and summarized. The end product is a yearly overview of air, rain, and snow samples as well as ambient radiation levels in the air that were measured from 1945 through 1957. The following information is provided in each annual summary: the media sampled, the constituents (radionuclides) measured/reported, the sampling locations, the sampling frequencies, the sampling methods, and the document references. For some years a notes category is included that contains additional useful information. For the years 1948 through 1957, tables summarizing the sampling locations for the various sample media are also included in the appendix. A large number of documents were reviewed to obtain the information in this report. A reference list is attached to the end of each annual summary. All of the information summarized here was obtained from reports originating at Hanford. These reports are all publicly available and can be found in the Richland Operations Office (RL) public reading room. The information in this report has been compiled without analysis and should only be used as a guide to the original documents.

  17. air monitoring methods: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A Simple Method of Signal Quality Monitoring for WAAS LNAVVNAV Peter Shloss, Raytheon Company R expressed herein. Biographies Mr. Peter Shloss is a Senior Principal...

  18. air monitoring network: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Websites Summary: Monitor Network Pulse Oximeter: Measures blood oxygen levels and pulse Accelerometer: Measures motion measures cardiac activity (ECG), oxygen saturation,...

  19. air monitoring sites: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    A. Reguera 2001-04-20 178 Applications of AirMaster+ in Real Industrial Facilities Texas A&M University - TxSpace Summary: poor overall efficiencies. Given this...

  20. Radiation protection instrumentation - ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation part 2: high range beta and photon dose and dose rate portable instruments for emergency radiation protection purposes

    E-Print Network [OSTI]

    International Electrotechnical Commission. Geneva

    2007-01-01T23:59:59.000Z

    Radiation protection instrumentation - ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation

  1. air monitoring system: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Summary: We report on a design and performances of a monitoring system developed for the aerogel Cherenkov counters (ACC) of the BELLE detector. The system consists of blue LEDs,...

  2. Contribution of vehicle emissions to ambient carbonaceous particulate matter: A review and synthesis of the available data in the South Coast Air Basin. Final report

    SciTech Connect (OSTI)

    Cass, G.R.

    1997-02-01T23:59:59.000Z

    Table of Contents: Executive Summary; Introduction; Ambient Carbonaceous Particulate Matter in the South Coast Air Basin; Measurements of Emissions from In-Use Motor Vehicles in the South Coast Air Basin; Integration of Emissions Measurements into Comprehensive Emissions Inventories; Relating Emissions fom Motor Vehicles to Particulate Air Quality; Synthesis: The Combined Effect of All Vehicle-Related Source Contributions Acting Together; Trends in More Recent Years; Opportunities for Further Research; References; Appendix A: Detailed Mass Emissions Rates for Organic Compounds from Motor Vehicle Exhaust; and Appendix B: Organic Compounds Emitted from Tire Dust, Paved Road Dust, and Brake Lining Wear Dust.

  3. COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

    SciTech Connect (OSTI)

    Robinson P. Khosah; John P. Shimshock

    2004-03-02T23:59:59.000Z

    Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), with a goal of characterizing the ambient fine particulate in this region, including examination of urban/rural variations, correlations between PM{sub 2.5} and gaseous pollutants, and influences of artifacts on PM{sub 2.5} measurements in this region. Two urban and two rural monitoring sites were included in the UORVP. The four sites selected were all part of existing local and/or state air quality programs. One urban site was located in the Lawrenceville section of Pittsburgh, Pennsylvania at an air quality monitoring station operated by the Allegheny County Health Department. A second urban site was collocated at a West Virginia Division of Environmental Protection (WVDEP) monitoring station at the airport in Morgantown, West Virginia. One rural site was collocated with the Pennsylvania Department of Environmental Protection (PADEP) at a former NARSTO-Northeast site near Holbrook, Greene County, Pennsylvania. The other rural site was collocated at a site operated by the Ohio Environmental Protection Agency (OHEPA) and managed by the Ohio State Forestry Division in Gifford State Forest near Athens, Ohio. Previous Semi-Annual Technical Progress Reports presented the following: (1) the median mass and composition of PM{sub 2.5} are similar for both Lawrenceville and Holbrook, suggesting that the sites are impacted more by the regional than by local effects; (2) there was no significant differences in the particulate trending and levels observed at both sites within seasons; (3) sulfate levels predominate at both sites and (4) PM{sub 2.5} and PM{sub 10} mass concentration levels are consistently higher in summer than in winter, with intermediate levels being observed in the fall and spring. Analyses of data conducted during the period from April 1, 2003 through September 30, 2003 are presented in this Semi-Annual Technical Progress Report. Report Revision No. 1 includes the additions or removals of text presented in the previous version of this report.

  4. Ambient Monitoring for Sinclair and Dyes Inlets, Puget Sound, Washington: Chemical Analyses for 2010 Regional Mussel Watch (AMB02)

    SciTech Connect (OSTI)

    Brandenberger, Jill M.; Kuo, Li-Jung; Suslick, Carolynn R.; Johnston, Robert K.

    2010-10-20T23:59:59.000Z

    The Puget Sound Naval Shipyard & Intermediate Maintenance Facility (PSNS&IMF) and Naval Base Kitsap-Bremerton (Shipyard) located in Bremerton, WA are committed to a culture of continuous process improvement for all aspects of Shipyard operations, including reducing the releases of hazardous materials and waste in discharges from the Shipyard. Under the Project ENVVEST Final Project Agreement, a cooperative project among PSNS&IMF, the Environmental Protection Agency (EPA), and the Washington State Department of Ecology (Ecology), and local stakeholders (US Navy, EPA and Ecology 2002) has been helping to improve the environmental quality of the Sinclair and Dyes Inlet Watershed (ENVVEST 2006). An ambient monitoring program for sediment, water, and indigenous mussels began in 2009 to assess the status and trend of ecological resources, assess the effectiveness of cleanup and pollution control measures, and determine if discharges from all sources are protective of beneficial uses including aquatic life. This document presents the 2010 chemical residue data and stable isotopes of carbon (?13C) and nitrogen (?15N) for the regional mussel watch stations located in Sinclair Inlet, Dyes Inlet, Port Orchard Passage, Rich Passage, Agate Passage, Liberty Bay, and Keyport Lagoon. Indigenous bivalves were collected from a small boat and/or from along the shoreline, measured, composited, and analyzed for a suite of trace metals and organic contaminants. The trace metals included silver, arsenic, cadmium, chromium, copper, mercury, nickel, lead, and zinc. The organic contaminants included the list of NOAA Status and Trends 20 polychlorinated biphenyls (PCB) congeners and suite of parent and methylated polycyclic aromatic hydrocarbons (PAHs). These chemical residue data provide the first year of the biota ambient monitoring.

  5. Air Pollution Control Regulations: No. 6- Continuous Emissions Monitors and Opacity Monitors (Rhode Island)

    Broader source: Energy.gov [DOE]

    Stationary sources, including fossil fuel fired steam or hot water generating units, may be required to install and operate a continuous emissions monitoring system equipped with an opacity monitor...

  6. A rugged continuous air monitor for sampling radionuclides

    E-Print Network [OSTI]

    Martinez, Joseph Thaddeus

    2002-01-01T23:59:59.000Z

    less than that in the sampler for out-leakage. The pressure inside the container did not exceed 10 inches of water. For in-leakage tests, sulfur hexafluoride (SF?) was diluted with air and released into the container, external to the sampler...

  7. air monitor operating: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    monitor operating First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 INTERNATIONAL CO-OPERATIVE PROGRAM ON...

  8. National Ambient Radiation Database

    SciTech Connect (OSTI)

    Dziuban, J.; Sears, R.

    2003-02-25T23:59:59.000Z

    The U.S. Environmental Protection Agency (EPA) recently developed a searchable database and website for the Environmental Radiation Ambient Monitoring System (ERAMS) data. This site contains nationwide radiation monitoring data for air particulates, precipitation, drinking water, surface water and pasteurized milk. This site provides location-specific as well as national information on environmental radioactivity across several media. It provides high quality data for assessing public exposure and environmental impacts resulting from nuclear emergencies and provides baseline data during routine conditions. The database and website are accessible at www.epa.gov/enviro/. This site contains (1) a query for the general public which is easy to use--limits the amount of information provided, but includes the ability to graph the data with risk benchmarks and (2) a query for a more technical user which allows access to all of the data in the database, (3) background information on ER AMS.

  9. Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge

    E-Print Network [OSTI]

    Anderson, K. J.; Annen, B.; Scott, S.

    year in compressed air energy costs. Their system included three older oil-flooded screw compressors two 25-horsepower (HP) and one 75 -HP. Although 100-HP ofcompressor was running continuously, it was having trouble providing enough air... such as improperly installed or leaking distribution lines, outdated or inadequate controls, and excess compressor capacity. But efficiency improvements and speed controls could save over [7%. In the Pacific Northwest (PNW) compressed air systems consumed 4...

  10. Air Pollution Control (Oklahoma)

    Broader source: Energy.gov [DOE]

    This chapter enumerates primary and secondary ambient air quality standards and the significant deterioration increments. Significant deterioration refers to an increase in ambient air pollution...

  11. Splashing phenomena of room temperature liquid metal droplet striking on the pool of the same liquid under ambient air environment

    E-Print Network [OSTI]

    Haiyan Li; Shengfu Mei; Lei Wang; Yunxia Gao; Jing Liu

    2013-09-04T23:59:59.000Z

    In this article, the fluid dynamics of room temperature liquid metal (RTLM) droplet impacting onto a pool of the same liquid in ambient air was investigated. A series of experiments were conducted in order to disclose the influence of the oxidation effect on the impact dynamics. The droplet shape and impact phenomenology were recorded with the aid of a high-speed digital camera. The impact energy stored in the splash structures was estimated via a theoretical model and several morphological parameters obtained from instantaneous images of the splash. It was observed that the droplet shape and the splashing morphology of RTLM were drastically different from those of water, so was the impact dynamics between room temperature LM pool and high temperature LM pool. The energy analysis disclosed that the height of the jet is highly sensitive to the viscosity of the fluid, which is subjected to the oxidation effect and temperature effect simultaneously, and thus perfectly explained the phenomena. These basic findings are important for the application of RTLM in a series of newly emerging technologies such as liquid metal based spray cooling, ink-jet printed electronics, interface material painting and coating, metallurgy, and 3D packages, etc.

  12. Alpha B-crystallin prevents the arrhythmogenic effects of particulate matter isolated from ambient air by attenuating oxidative stress

    SciTech Connect (OSTI)

    Park, Hyelim [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of) [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Brain Korea 21 Project for Medical Science, Yonsei University, Seoul (Korea, Republic of); Park, Sanghoon; Jeon, Hyunju [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of)] [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Song, Byeong-Wook [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of) [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Brain Korea 21 Project for Medical Science, Yonsei University, Seoul (Korea, Republic of); Kim, Jin-Bae [Division of Cardiology, Kyung Hee University College of Medicine, Seoul (Korea, Republic of)] [Division of Cardiology, Kyung Hee University College of Medicine, Seoul (Korea, Republic of); Kim, Chang-Soo [The Department of Preventive Medicine, Yonsei University College of Medicine, Seoul (Korea, Republic of)] [The Department of Preventive Medicine, Yonsei University College of Medicine, Seoul (Korea, Republic of); Pak, Hui-Nam [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of)] [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Hwang, Ki-Chul [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of) [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Brain Korea 21 Project for Medical Science, Yonsei University, Seoul (Korea, Republic of); Lee, Moon-Hyoung [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of)] [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Chung, Ji Hyung, E-mail: jhchung@yuhs.ac [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Joung, Boyoung, E-mail: cby6908@yuhs.ac [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of) [The Division of Cardiology, Yonsei University College of Medicine, Seoul (Korea, Republic of); Brain Korea 21 Project for Medical Science, Yonsei University, Seoul (Korea, Republic of)

    2013-01-15T23:59:59.000Z

    Ca{sup 2+}/calmodulin-dependent protein kinase II (CaMKII) is activated by particulate matter (PM) isolated from ambient air and linked to prolonged repolarization and cardiac arrhythmia. We evaluated whether alpha B-crystallin (CryAB), a heat shock protein, could prevent the arrhythmogenic effects of PM by preventing CaMKII activation. CryAB was delivered into cardiac cells using a TAT-protein transduction domain (TAT-CryAB). ECGs were measured before and after tracheal exposure of diesel exhaust particles (DEP) and each intervention in adult Sprague–Dawley rats. After endotracheal exposure of DEP (200 ?g/mL for 30 minutes, n = 11), QT intervals were prolonged from 115 ± 14 ms to 144 ± 20 ms (p = 0.03), and premature ventricular contractions were observed more frequently (0% vs. 44%) than control (n = 5) and TAT-Cry (n = 5). However, DEP-induced arrhythmia was not observed in TAT-CryAB (1 mg/kg) pretreated rats (n = 5). In optical mapping of Langendorff-perfused rat heats, compared with baseline, DEP infusion of 12.5 ?g/mL (n = 12) increased apicobasal action potential duration (APD) differences from 2 ± 6 ms to 36 ± 15 ms (p < 0.001), APD restitution slope from 0.26 ± 0.07 to 1.19 ± 0.11 (p < 0.001) and ventricular tachycardia (VT) from 0% to 75% (p < 0.001). DEP infusion easily induced spatially discordant alternans. However, the effects of DEP were prevented by TAT-CryAB (1 mg/kg, n = 9). In rat myocytes, while DEP increased reactive oxygen species (ROS) generation and phosphated CaMKII, TAT-CryAB prevented these effects. In conclusion, CryAB, a small heat shock protein, might prevent the arrhythmogenic effects of PM by attenuating ROS generation and CaMKII activation. -- Highlights: ? Particulate matter (PM) increases arrhythmia. ? PM induced arrhythmias are related with oxidative stress and CaMKII activation. ? Alpha B-crystallin (CryAB) could attenuate the arrhythmogenic effect of PM. ? CryAB decreases oxidative stress and CaMKII activation induced by ambient PM.

  13. California GAMA Program: Groundwater Ambient Monitoring and Assessment Results for the Sacramento Valley and Volcanic Provinces of Northern California

    SciTech Connect (OSTI)

    Moran, J E; Hudson, G B; Eaton, G F; Leif, R

    2005-01-20T23:59:59.000Z

    In response to concerns expressed by the California Legislature and the citizenry of the State of California, the State Water Resources Control Board (SWRCB), implemented a program to assess groundwater quality, and provide a predictive capability for identifying areas that are vulnerable to contamination. The program was initiated in response to concern over public supply well closures due to contamination by chemicals such as methyl tert butyl ether (MTBE) from gasoline, and solvents from industrial operations. As a result of this increased awareness regarding groundwater quality, the Supplemental Report of the 1999 Budget Act mandated the SWRCB to develop a comprehensive ambient groundwater monitoring plan, and led to the initiation of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The primary objective of the California Aquifer Susceptibility (CAS) project (under the GAMA Program) is to assess water quality and to predict the relative susceptibility to contamination of groundwater resources throughout the state of California. Under the GAMA program, scientists from Lawrence Livermore National Laboratory (LLNL) collaborate with the SWRCB, the U.S. Geological Survey, the California Department of Health Services (DHS), and the California Department of Water Resources (DWR) to implement this groundwater assessment program. In 2003, LLNL carried out this vulnerability study in the Sacramento Valley and Volcanic Provinces. The goal of the study is to provide a probabilistic assessment of the relative vulnerability of groundwater used for the public water supply to contamination from surface sources. This assessment of relative contamination vulnerability is made based on the results of two types of analyses that are not routinely carried out at public water supply wells: ultra low-level measurement of volatile organic compounds (VOCs), and groundwater age dating (using the tritium-helium-3 method). In addition, stable oxygen isotope measurements help determine the recharge water source location. Interpreted together, and in the context of existing water quality and hydrogeologic data, these observable parameters help define the flow field of a groundwater basin, and indicate the degree of vertical communication between near-surface sources (or potential sources) of contamination, and deeper groundwater pumped at high capacity production wells.

  14. Mobile Air Pollution Monitoring Network W. Hedgecock, P. Vlgyesi, A. Ledeczi,

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    Mobile Air Pollution Monitoring Network W. Hedgecock, P. Völgyesi, A. Ledeczi, X. Koutsoukos, and A- resolution realtime pollution data at any location within the coverage area. We have prototyped sensors exposure to a given pollutant. Categories and Subject Descriptors H.4 [Information Systems Applications

  15. MAQS: A Personalized Mobile Sensing System for Indoor Air Quality Monitoring

    E-Print Network [OSTI]

    Dick, Robert

    quality (IAQ) influences human health, safety, productivity, and comfort. This paper describes MAQS, a personalized mobile sensing system for IAQ monitoring. In contrast with existing stationary or out- door air personalized IAQ information. To improve accuracy and energy efficiency, MAQS incorporates three novel

  16. A method to characterize the influence of air distribution on the composting treatment: monitoring of the thermal fields

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 A method to characterize the influence of air distribution on the composting treatment of air distribution on the composting treatment: monitoring of the thermal fields Hénon Florent a:anne.tremier@cemagref.fr Abstract In a composting process the monitoring of heat flows is a useful tool in terms of phenomenological

  17. Data Quality Objectives Supporting Radiological Air Emissions Monitoring for the PNNL Site

    SciTech Connect (OSTI)

    Barnett, J. M.; Meier, Kirsten M.; Snyder, Sandra F.; Fritz, Brad G.; Poston, Ted M.; Rhoads, Kathleen

    2010-05-25T23:59:59.000Z

    This document of Data Quality Objectives (DQOs) was prepared based on the U.S. Environmental Protection Agency (EPA) Guidance on Systematic Planning Using the Data Quality Objectives Process, EPA, QA/G4, 2/2006 (EPA 2006) as well as several other published DQOs. Pacific Northwest National Laboratory (PNNL) is in the process of developing a radiological air monitoring program for the PNNL Site that is distinct from that of the nearby Hanford Site. Radiological emissions at the PNNL Site result from Physical Sciences Facility (PSF) major emissions units. A team was established to determine how the PNNL Site would meet federal regulations and address guidelines developed to monitor and estimate offsite air emissions of radioactive materials. The result is a program that monitors the impact to the public from the PNNL Site.

  18. Filter for on-line air monitor unaffected by radon progeny and method of using same

    DOE Patents [OSTI]

    Phillips, Terrance D. (Aiken, SC); Edwards, Howard D. (Augusta, GA)

    1999-01-01T23:59:59.000Z

    An apparatus for testing air having contaminants and radon progeny therein. The apparatus includes a sampling box having an inlet for receiving the air and an outlet for discharging the air. The sampling box includes a filter made of a plate of sintered stainless steel. The filter traps the contaminants, yet allows at least a portion of the radon progeny to pass therethrough. A method of testing air having contaminants and radon progeny therein. The method includes providing a testing apparatus that has a sampling box with an inlet for receiving the air and an outlet for discharging the air, and has a sintered stainless steel filter disposed within said sampling box; drawing air from a source into the sampling box using a vacuum pump; passing the air through the filter; monitoring the contaminants trapped by the filter; and providing an alarm when a selected level of contaminants is reached. The filter traps the contaminants, yet allows at least a portion of the radon progeny to pass therethrough.

  19. ENVIRONMENTAL SAMPLING USING LOCATION SPECIFIC AIR MONITORING IN BULK HANDLING FACILITIES

    SciTech Connect (OSTI)

    Sexton, L.; Hanks, D.; Degange, J.; Brant, H.; Hall, G.; Cable-Dunlap, P.; Anderson, B.

    2011-06-07T23:59:59.000Z

    Since the introduction of safeguards strengthening measures approved by the International Atomic Energy Agency (IAEA) Board of Governors (1992-1997), international nuclear safeguards inspectors have been able to utilize environmental sampling (ES) (e.g. deposited particulates, air, water, vegetation, sediments, soil and biota) in their safeguarding approaches at bulk uranium/plutonium handling facilities. Enhancements of environmental sampling techniques used by the IAEA in drawing conclusions concerning the absence of undeclared nuclear materials or activities will soon be able to take advantage of a recent step change improvement in the gathering and analysis of air samples at these facilities. Location specific air monitoring feasibility tests have been performed with excellent results in determining attribute and isotopic composition of chemical elements present in an actual test-bed sample. Isotopic analysis of collected particles from an Aerosol Contaminant Extractor (ACE) collection, was performed with the standard bulk sampling protocol used throughout the IAEA network of analytical laboratories (NWAL). The results yielded bulk isotopic values expected for the operations. Advanced designs of air monitoring instruments such as the ACE may be used in gas centrifuge enrichment plants (GCEP) to detect the production of highly enriched uranium (HEU) or enrichments not declared by a State. Researchers at Savannah River National Laboratory in collaboration with Oak Ridge National Laboratory are developing the next generation of ES equipment for air grab and constant samples that could become an important addition to the international nuclear safeguards inspector's toolkit. Location specific air monitoring to be used to establish a baseline environmental signature of a particular facility employed for comparison of consistencies in declared operations will be described in this paper. Implementation of air monitoring will be contrasted against the use of smear ES when used during unannounced inspections, design information verification, limited frequency unannounced access, and complementary access visits at bulk handling facilities. Analysis of technical features required for tamper indication and resistance will demonstrate the viability of successful application of the system in taking ES within a bulk handling location. Further exploration of putting this technology into practice is planned to include mapping uranium enrichment facilities for the identification of optimal for installation of air monitoring devices.

  20. The effect of hardware configuration on the performance of residential air conditioning systems at high outdoor ambient temperatures

    E-Print Network [OSTI]

    Bain, Joel Alan

    1995-01-01T23:59:59.000Z

    A study was performed which investigated the effect of hardware configuration on air conditioning cooling system performance at high outdoor temperatures. The initial phase of the investigation involved the testing of ten residential air...

  1. Project 57 Air Monitoring Annual Report - Fiscal Year 2013 (October 1, 2012 to September 30, 2013)

    SciTech Connect (OSTI)

    Miller, Julianne J. [DRI; McCurdy, Greg [DRI; Mizell, Steve A [DRI

    2014-07-01T23:59:59.000Z

    The U.S. Department of Energy (DOE), National Nuclear Security Administration, Nevada Field Office (NNSA/NFO) is currently working to achieve regulatory closure of radionuclide-contaminated Soils sites under its auspices. Corrective Action Unit (CAU) 415, Project 57 No. 1 Plutonium Dispersion Site is located in Emigrant Valley, Nevada, on Range 4808A of the Nevada Test and Training Range (NTTR), and consists of one Corrective Action Site (CAS): NAFR-23-02, Pu Contaminated Soil. Closure plans being developed for the CAUs both on and off of the Nevada National Security Site (NNSS) may include postclosure monitoring for the possible release of radioactive contaminants. Determining the potential for transport of radionuclide-contaminated soils under ambient climatic conditions will facilitate an appropriate closure design and postclosure monitoring program. The DOE has authorized the Desert Research Institute (DRI) to conduct field assessments of potential transport of radionuclide-contaminated soil from the Project 57 site during ambient wind events. The assessment is intended to provide site-specific information on meteorological conditions that result in airborne soil particle redistribution, as well as determine which, if any, radiological contaminants may be entrained with the soil particles and estimate their concentrations.

  2. Data Quality Objectives Supporting Radiological Air Emissions Monitoring for the PNNL Site

    SciTech Connect (OSTI)

    Barnett, J. M.; Meier, Kirsten M.; Snyder, Sandra F.; Fritz, Brad G.; Poston, Theodore M.; Antonio, Ernest J.

    2012-11-12T23:59:59.000Z

    Pacific Northwest National Laboratory (PNNL) is in the process of developing a radiological air monitoring program for the PNNL Site that is distinct from that of the nearby Hanford Site. The original DQO (PNNL-19427) considered radiological emissions at the PNNL Site from Physical Sciences Facility (PSF) major emissions units. This first revision considers PNNL Site changes subsequent to the implementation of the original DQO. A team was established to determine how the PNNL Site changes would continue to meet federal regulations and address guidelines developed to monitor air emissions and estimate offsite impacts of radioactive material operations. The result is an updated program to monitor the impact to the public from the PNNL Site. The team used the emission unit operation parameters and local meteorological data as well as information from the PSF Potential-to-Emit documentation and Notices of Construction submitted to the Washington State Department of Health (WDOH). The locations where environmental monitoring stations would most successfully characterize the maximum offsite impacts of PNNL Site emissions from the three PSF buildings with major emission units were determined from these data. Three monitoring station locations were determined during the original revision of this document. This first revision considers expanded Department of Energy operations south of the PNNL Site and relocation of the two offsite, northern monitoring stations to sites near the PNNL Site fenceline. Inclusion of the southern facilities resulted in the proposal for a fourth monitoring station in the southern region. The southern expansion added two minor emission unit facilities and one diffuse emission unit facility. Relocation of the two northern stations was possible due to the use of solar power, rather than the previous limitation of the need for access to AC power, at these more remote locations. Addendum A contains all the changes brought about by the revision 1 considerations. This DQO report also updates the discussion of the Environmental Monitoring Plan for the PNNL Site air samples and how existing Hanford Site monitoring program results could be used. This document of Data Quality Objectives (DQOs) was prepared based on the U.S. Environmental Protection Agency (EPA) Guidance on Systematic Planning Using the Data Quality Objectives Process, EPA, QA/G4, 2/2006 (EPA 2006) as well as several other published DQOs.

  3. Evaluation of the Eberline AMS-3A and AMS-4 Beta continuous air monitors

    SciTech Connect (OSTI)

    Johnson, M.L.; Sisk, D.R.

    1996-03-01T23:59:59.000Z

    Eberline AMS-3A-1 and AMS-4 beta continuous air monitors were tested against the criteria set forth in the ANSI Standards N42.18, Specification and Performance of On-site Instrumentation for Continuously Monitoring Radioactivity in Effluents, and ANSI N42.17B, Performance Specification for Health Physics Instrumentation - Occupational Airborne Radioactivity Monitoring Instrumentation. ANSI N42.18 does not, in general, specify testing procedures for demonstrating compliance with the criteria set forth in the standard; therefore, wherever possible, the testing procedures given in ANSI N42.17B were adopted. In all cases, the more restrictive acceptance criteria and/or the more demanding test conditions of the two standards were used.

  4. New and Emerging Technologies for Real-Time Air and Surface Beryllium Monitoring

    SciTech Connect (OSTI)

    Phifer, B.E. Jr.; Churnetski, E.L.; Cooke, L.E.; Reed, J.J.; Howell, M.L.; Smith, V.D.

    2001-09-01T23:59:59.000Z

    In this study, five emerging technologies were identified for real-time monitoring of airborne beryllium: Microwave-Induced Plasma Spectroscopy (MIPS), Aerosol Beam-Focused Laser-Induced Plasma Spectroscopy (ABFLIPS), Laser-Induced Breakdown Spectroscopy (LIBS), Surfaced-Enhanced Raman Scattering (SERS) Spectroscopy, and Micro-Calorimetric Spectroscopy (CalSpec). Desired features of real-time air beryllium monitoring instrumentation were developed from the Y-12 CBDPP. These features were used as guidelines for the identification of potential technologies as well as their unique demonstrated capability to provide real-time monitoring of similar materials. However, best available technologies were considered, regardless of their ability to comply with the desired features. None of the five technologies have the capability to measure the particle size of airborne beryllium. Although reducing the total concentration of airborne beryllium is important, current literature suggests that reducing or eliminating the concentration of respirable beryllium is critical for worker health protection. Eight emerging technologies were identified for surface monitoring of beryllium. CalSpec, MIPS, SERS, LIBS, Laser Ablation, Absorptive Stripping Voltametry (ASV), Modified Inductively Coupled Plasma (ICP) Spectroscopy, and Gamma BeAST. Desired features of real-time surface beryllium monitoring were developed from the Y-12 CBDPP. These features were used as guidelines for the identification of potential technologies. However, the best available technologies were considered regardless of their ability to comply with the desired features.

  5. Monitoring indoor air quality in French schools and day-care centres. Results from the first phase of a pilot survey.

    E-Print Network [OSTI]

    Boyer, Edmond

    . KEYWORDS Air pollution, air stuffiness, formaldehyde, benzene. 1 INTRODUCTION Indoor air quality to determine an air stuffiness index as an indirect mean to assess pollutants accumulation in a closed spaceMonitoring indoor air quality in French schools and day-care centres. Results from the first phase

  6. Monitoring and evaluation of replacing low-efficiency air conditioners with high-efficiency air conditioners in single-family detached houses in Austin, Texas

    SciTech Connect (OSTI)

    Burns, R.; Hough, R.E. (Fleming (W.S.) and Associates, Inc., Syracuse, NY (United States))

    1991-10-01T23:59:59.000Z

    The US DOE initiated this project to evaluate the performance of an air conditioner retrofit program in Austin, Texas. The City's Austin's Resource Management Department pursued this project to quantify the retrofit effect of replacing low-efficiency air conditioners with high-efficiency air conditioners in single-family detached homes. If successfully implemented, this retrofit program could help defer construction of a new power plant which is a major goal of this department. The project compares data collected from 12 houses during two cooling seasons under pre-retrofit and then post-retrofit air conditioner units. The existing low-efficiency air conditioners were monitored during the 1987 cooling season, replaced during the 1987--88 heating season with new, smaller sized, high-efficiency units, and then monitored again during the 1988 cooling season. Results indicated that the air conditioner retrofits reduce the annual air conditioner electric consumption and peak electric demand by an average of 38%. When normalized to the nominal capacity of the air conditioner, average demand savings were 1.12 W/ft{sup 2} and estimated annual energy savings were 1.419 kWh/ft{sup 2}. Individual air conditioner power requirements were found to be a well defined function of outdoor temperature as expected. In the absence of detailed data, estimates of the peak demand reductions of new air conditioners can be made from the manufacturer's specifications. Air conditioner energy consumption proved to be strongly linear as a function of the outdoor temperature as expected when taken as an aggregate. No noticeable differences in the diversity factor of the air conditioner usage were found. Analysis of the retrofit effect using PRISM yields estimates of the reduction in normalized annual consumption (NAC) and annual cooling consumption of 12% and 30%. 2 refs., 11 figs., 17 tabs.

  7. Comfort, perceived air quality, and work performance in a low-power task-ambient conditioning system

    E-Print Network [OSTI]

    Zhang, Hui Ph.D; Kim, DongEun; Arens, Edward A; Buchberger, Elena; Bauman, Fred; Huizenga, Charlie

    2008-01-01T23:59:59.000Z

    way that when the spot cooling supply fan is on, it deliversnozzle. When the spot cooling supply fan is off, the localducted supply of cool air (called the spot cooling line) to

  8. Constraining uncertainties about the sources and magnitude of ambient air exposures to polycyclic aromatic hydrocarbons (PAHs): The state of Minnesota as a case study

    SciTech Connect (OSTI)

    Lobscheid, Agnes B.; McKone, Thomas E.

    2004-02-01T23:59:59.000Z

    Emissions data are often lacking or uncertain for many airborne contaminants. Chemicals, such as polycyclic aromatic hydrocarbons (PAHs), emitted from combustion sources, fall into this category. Currently available ambient-air emission inventories of PAHs either fail to account for population-based activities (such as residential wood combustion and motor vehicle activity) and/or report ''total PAH'' or particulate organic matter emissions instead of individual compounds. We measure the degree of overlap between predicted concentrations from estimated emissions with measured concentrations. Our analysis is, based on probabilistic analysis of measured outdoor air concentrations with those predicted from mass-balance models. Based on available information, we estimate the relative magnitude of emissions from four major sources of PAHs to outdoor air- (1) on-road motor vehicles, including light-duty gasoline vehicles and diesel-powered buses and medium and heavy duty trucks; (2) residential wood combustion; and (3) power generation from external combustion boilers. We use the CalTOX regional multimedia mass-balance model to evaluate our emissions estimates in rural and urban regions of the state of Minnesota, USA. We compare model estimates of outdoor PAH airborne concentrations with those reported by the Minnesota Children's Pesticide Exposure Study (MNCPES). With these measured concentrations we probabilistically evaluate our emissions and interpret the reliability of our emissions estimates for specific PAHs. The median estimates of our predicted outdoor air concentrations agree within an order of magnitude of measured concentrations. For four representative PAHs, we were able to obtain a reasonable degree of overlap between empirical and predicted distributions of outdoor air concentrations. Our combination of models, emissions estimates, and empirical concentration data estimate exposure in a manner that is more reliable than any of these tools alone. Thereby, we increase our confidence about our plausible ranges of emissions and predicted concentrations.

  9. Use of MCNPX for Alpha Spectrometry Simulations of a Continuous Air Monitor

    SciTech Connect (OSTI)

    Robert Hayes, Craig Marianno

    2007-01-01T23:59:59.000Z

    The purpose of this study was to determine if the alpha energy spectrum in a Passive Implanted Planar Silicon (PIPS) detector, as modeled by MCNPX [1], can be used to design a radon stripping algorithm for a continuous air monitor (CAM). This stripping algorithm would be employed to discriminate naturally occurring radioisotopes from the anthropogenic for nuclear safety -related applications. It is hoped that using an algorithm based on MCNPX simulations, the CAM will not be prone to false alarms when radon levels are dynamic as identified in other CAM systems [2,3]. This work is focused on the design of the next generation air particulate detector (NGAPD) for the United States Navy. The primary isotope of interest is Co-60. This radionuclide emits a beta with an average energy of 96 keV. Therefore, once deposited on the CAM filter, it will produce a beta continuum seen by the PIPS detector. In addition, as radon progeny is deposited on the air filter, these will give rise to characteristic alpha peaks and a beta continuum. This is primarily an issue in port-or land-based applications. Ultimately, measurement of a radon alpha spectrum is desired to predict the amount of beta activity which would be measured from the radon progeny decay chains. All excess beta activity could then be attributed to anthropogenic sources once the radon progeny contributions have been stripped out.

  10. ambiental na implementacao: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 9 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  11. ambiental em localidade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 28 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  12. ambiente prehospitalario peruano: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 5 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  13. avaliacao ambiental estrategica: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 2 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  14. ambiental aspetti energetici: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 9 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  15. ambiental factor creador: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 3 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  16. ambientes costeiros tropicais: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 5 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  17. ambiental em escala: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 37 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  18. ambientes internos na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 23 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  19. ambiental seguranca qualidade: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 2 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  20. ambiente hospitalar uma: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 15 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  1. altas temperaturas ambientes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 8 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  2. ambiental em areas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 33 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  3. amendoim em ambiente: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 27 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  4. ambiental em radioterapia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 28 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  5. ambientes climatizados portaria: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 4 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  6. almacenadas al ambiente: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 6 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  7. ambiente protegido em: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 28 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  8. ambientes aquaticos adjacentes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 3 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  9. ambiente em codornas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 27 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  10. ambiental na bacia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 16 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  11. ambiente na periferia: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 10 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  12. al humo ambiental: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 6 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  13. adecuada al ambiente: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 7 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  14. ambiental em corredores: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 30 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  15. acessibilidade em ambiente: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 29 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  16. ambiental em praias: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 30 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  17. ambientes virtuais na: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 20 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  18. ambiental como tecnica: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 16 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  19. asegurar justicia ambiental: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 6 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  20. ambiental considerando inovacoes: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 5 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  1. ambientes sensibles isla: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 28 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  2. ambiental caso cundinamarca: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 5 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  3. ambiente tabuleiros costeiros: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 3 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  4. ambientes alterados limitaciones: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 3 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  5. ambiental asociados con: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 8 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  6. ambiental relacionados con: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 13 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  7. ambientes desconhecidos utilizando: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 4 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  8. ambiente nas cidades: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 8 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  9. 7-111 A Carnot heat engine is used to drive a Carnot refrigerator. The maximum rate of heat removal from the refrigerated space and the total rate of heat rejection to the ambient air are to be determined.

    E-Print Network [OSTI]

    Bahrami, Majid

    7-42 7-111 A Carnot heat engine is used to drive a Carnot refrigerator. The maximum rate of heat removal from the refrigerated space and the total rate of heat rejection to the ambient air are to be determined. Assumptions The heat engine and the refrigerator operate steadily. Analysis (a) The highest

  10. Journal of Ambient Intelligence and Smart Environments 0 (0) 1 1 Towards a monitoring smart home for the

    E-Print Network [OSTI]

    Marsland, Stephen

    smart home for the elderly: One experience in retrofitting a sensor network into an existing home.Basu,G.SenGupta}@massey.ac.nz Abstract. There has been a lot of research interest in research smart homes for behaviour recognition of some of the data integrity issues faced. Keywords: Smart home, elderly monitoring, wireless sensor

  11. Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Pahranagat National Wildlife Refuge, Lincoln County, Nevada

    SciTech Connect (OSTI)

    J. Englebrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2008-08-01T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Pahranagat NWR, Beatty, Rachel, Caliente, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data on completion of the site's sampling program.

  12. Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Pahranagat National Wildlife Refuge, Lincoln County, Nevada

    SciTech Connect (OSTI)

    J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2009-04-02T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Pahranagat NWR, Beatty, Rachel, Caliente, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data on completion of the site's sampling program.

  13. Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Tonopah Airport, Nye County, Nevada

    SciTech Connect (OSTI)

    J. Engelbrecht; I. Kavouras; D Campbell; S. Campbell; S. Kohl, D. Shafer

    2008-08-01T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Tonopah Airport, Beatty, Rachel, Caliente, Pahranagat NWR, Crater Flat, and the Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  14. Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Crater Flat, Nye County, Nevada

    SciTech Connect (OSTI)

    J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2008-08-01T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) (cover page figure) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  15. Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Crater Flat, Nye County, Nevada

    SciTech Connect (OSTI)

    J. Engelbrecht; I. Kavouras; D. Campbell; S.Campbell; S. Kohl; D. Shafer

    2009-04-02T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) (cover page figure) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  16. Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Tonopah Airport, Nye County, Nevada

    SciTech Connect (OSTI)

    J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2009-04-02T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Tonopah Airport, Beatty, Rachel, Caliente, Pahranagat NWR, Crater Flat, and the Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  17. Letter Report: Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada

    SciTech Connect (OSTI)

    J. Englebrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2008-08-01T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  18. AIRNET Data from Los Alamos National Laboratory: Air Concentration Data by Site and Isotope/Element

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Ambient monitoring is the systematic, long-term assessment of pollutant levels by measuring the quantity and types of certain pollutants in the surrounding, outdoor air. The purpose of AIRNET, LANL's ambient air monitoring network, is to monitor locations where people live or work. The community of Los Alamos is downwind from LANL, so there are many monitoring stations in and around the town. AIRNET stations monitor 24 hours a day, 365 days of the year. Particulates are collected on a filter and analyzed every two weeks for identification of analytes and assessment of the potential impact on the public. Emissions measurement is the process of monitoring materials vented from buildings. Air samples are taken from building exhaust units, called stacks, and are then analyzed for particulate matter, tritium, and radioactive gases and vapors. A computer model uses the emission data to determine the dispersion. Stack monitoring is also used to measure emissions that cannot be measured by AIRNET stations.

  19. Vapor-liquid equilibrium of water-acetone-air at ambient temperatures and pressures. An analysis of different VLE-fitting methods

    SciTech Connect (OSTI)

    Lichtenbelt, J.H.; Schram, B.J.

    1985-04-01T23:59:59.000Z

    The availability of accurate equilibrium data is of high importance in chemical engineering practice both for design and research purposes. It appeared that for the gas absorption system water-acetone-air in the range of special interest for absorption and desorption operations, neither literature data nor calculations following UNIFAC gave a sufficient accuracy. An experimental program was set up to determine equilibrium data with an accuracy within 2% for low acetone concentrations (up to 7 wt % gas phase) at ambient temperature (16-30/sup 0/C) and atmospheric pressure (740-860 mmHg). From experiments the activity coefficient at infinite dilution of acetone ..gamma.. is found to be 6.79 (0.01) at 20/sup 0/C and 7.28 (0.01) at 25/sup 0/C, while the total error in ..gamma.. is 1.5%. The equilibrium constant can be calculated from ..gamma.. and shows the same error. The experimental data-fitting with procedures of Margules (two parameters) and Van Laar were successful, but NRTL, Wilson, and UNIQUAC failed, probably because of the small concentration range used.

  20. Tonopah Test Range Air Monitoring: CY2012 Meteorological, Radiological, and Airborne Particulate Observations

    SciTech Connect (OSTI)

    Mizell, Steve A; Nikolich, George; Shadel, Craig; McCurdy, Greg; Miller, Julianne J

    2013-07-01T23:59:59.000Z

    In 1963, the Atomic Energy Commission (AEC), predecessor to the US Department of Energy (DOE), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range (NAFR)). Operation Roller Coaster consisted of four tests in which chemical explosions were detonated in the presence of nuclear devices to assess the dispersal of radionuclides and evaluate the effectiveness of storage structures to contain the ejected radionuclides. These tests resulted in dispersal of plutonium over the ground surface downwind of the test ground zero. Three tests, Clean Slate 1, 2, and 3, were conducted on the TTR in Cactus Flat; the fourth, Double Tracks, was conducted in Stonewall Flat on the NTTR. DOE is working to clean up and close all four sites. Substantial cleaned up has been accomplished at Double Tracks and Clean Slate 1. Cleanup of Clean Slate 2 and 3 is on the DOE planning horizon for some time in the next several years. The Desert Research Institute installed two monitoring stations, number 400 at the Sandia National Laboratories Range Operations Center and number 401 at Clean Slate 3, in 2008 and a third monitoring station, number 402 at Clean Slate 1, in 2011 to measure radiological, meteorological, and dust conditions. The primary objectives of the data collection and analysis effort are to (1) monitor the concentration of radiological parameters in dust particles suspended in air, (2) determine whether winds are re-distributing radionuclides or contaminated soil material, (3) evaluate the controlling meteorological conditions if wind transport is occurring, and (4) measure ancillary radiological, meteorological, and environmental parameters that might provide insight to the above assessments. The following observations are based on data collected during CY2012. The mean annual concentration of gross alpha and gross beta is highest at Station 400 and lowest at Station 401. This difference may be the result of using filter media at Station 400 with a smaller pore size than the media used at the other two stations. Average annual gamma exposure at Station 401 is slightly greater than at Station 400 and 402. Average annual gamma exposure at all three TTR stations are in the upper range to slightly higher than values reported for the CEMP stations surrounding the TTR. At higher wind speeds, the saltation counts are greater at Station 401 than at Station 402 while the suspended particulate concentrations are greater at Station 402 than at Statin 401. Although these observations seem counterintuitive, they are likely the result of differences in the soil material present at the two sites. Station 401 is located on an interfluve elevated above two adjacent drainage channels where the soil surface is likely to be composed of coarser material. Station 402 is located in finer sediments at the playa edge and is also subject to dust from a dirt road only 500 m to the north. During prolonged high wind events, suspended dust concentrations at Station 401 peaked with the initial winds then decreased whereas dust concentrations at Station 402 peaked with each peak in the wind speed. This likely reflects a limited PM10 source that is quickly expended at Station 401 relative to an abundant PM10 source at Station 402. In CY2013, to facilitate comparisons between radiological analyses of collected dust, the filter media at all three stations will be standardized. In addition, a sequence of samples will be collected at Station 400 using both types of filter media to enable development of a mathematical relationship between the results derived from the two filter types. Additionally, having acquired approximately four years of observations at Stations 400 and 401 and a year of observations at Station 402, a period-of-record analysis of the radiological and airborne dust conditions will be undertaken.

  1. Air Pollution (Illinois)

    Broader source: Energy.gov [DOE]

    This article states regulations for monitoring air pollution, methods for permit applications, emission limitations for pollutants and air quality standards.

  2. XIII World Forestry Congress Buenos Aires, Argentina, 18 23 October 2009 Landscape biodiversity monitoring

    E-Print Network [OSTI]

    XIII World Forestry Congress Buenos Aires, Argentina, 18 ­ 23 October 2009 1 Landscape biodiversity #12;XIII World Forestry Congress Buenos Aires, Argentina, 18 ­ 23 October 2009 2 management. Moreover

  3. Real-time Air Quality Monitoring Through Mobile Sensing in Metropolitan Areas

    E-Print Network [OSTI]

    Iftode, Liviu

    . General Terms Measurement, Design, Experimentation, Human Factors. Keywords Air Quality, Pollution, Urban levels in the urban and suburban settings. According to the US EPA [3], the six common air pollutants. These are called the criteria pollutants and thus are required to be measured to tell us how healthy the air

  4. Community Environmental Monitoring Program (CEMP) Data related to Air, Soil, and Water Monitoring around the Nevada Test Site

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The Community Environmental Monitoring Program (CEMP) is a network of 29 monitoring stations located in communities surrounding and downwind of the Nevada Test Site (NTS) that monitor the airborne environment for manmade radioactivity that could result from NTS activities. The network stations, located in Nevada, Utah, and California are comprised of instruments that collect a variety of environmental radiological and meteorological data. The emphasis of the CEMP is to monitor airborne radioactivity and weather conditions, and make the results available to the public. Instrumentation that records these data is connected to a datalogger, and real-time radiation levels or weather conditions can immediately and easily be seen on a display at each station. These data are transmitted via direct or wireless internet connection, landline or cellular phone, or satellite transmission to DRI's Western Regional Climate Center in Reno, Nevada, and are updated as frequently as every 10 minutes on the World Wide Web at http://www.cemp.dri.edu. DOE and DRI also publish the results of the monitoring program and distribute these reports throughout the network community. The reports provide summaries of average values for each station and the entire network, and show deviations from the expected range values. [Copied from the CEMP website (Introduction) at http://www.cemp.dri.edu/cemp/moreinfo.html

  5. Ambient Monitoring for Sinclair and Dyes Inlets, Puget Sound, Washington: Chemical Analyses for 2012 Regional Mussel Watch

    SciTech Connect (OSTI)

    Brandenberger, Jill M.; Kuo, Li-Jung; Suslick, Carolynn R.; Johnston, Robert K.

    2012-09-01T23:59:59.000Z

    Under the Project ENVVEST Final Project Agreement, the Puget Sound Naval Shipyard & Intermediate Maintenance Facility (PSNS&IMF), Environmental Protection Agency (EPA), Washington State Department of Ecology (Ecology), and local stakeholders have worked collaboratively to improve the environmental quality of Sinclair and Dyes Inlets. A regional mussel monitoring program began in 2010 to assess the status and trend of ecological resources, assess the effectiveness of cleanup and pollution control measures, and determine if discharges from all sources are protective of beneficial uses including aquatic life. The program collected indigenous mussels to represent a time-integrated measure of bioavailable metals and organic chemicals present in the water column. This document supplements the 2010 indigenous mussel data with 2012 data to provide two years of data on the chemical residue of mussels present in the inter-tidal regions of Sinclair Inlet, Dyes Inlet, Port Orchard Passage, Rich Passage, Agate Passage, Liberty Bay, and Keyport Lagoon. The 2012 data set added one station at PSNS&IMF and one market samples from Penn Cove. Indigenous mussels were collected from a small boat and/or from along the shoreline, measured, composited, and analyzed for percent lipids, percent moisture, stable isotopes of carbon and nitrogen, and a suite of trace metals and organic contaminants. The trace metals included silver (Ag), arsenic (As), cadmium (Cd), copper (Cu), mercury (Hg), lead (Pb), and zinc (Zn). The organic contaminants included the list of NOAA Status and Trends 20 polychlorinated biphenyls (PCB) congeners and suite of parent and methylated polycyclic aromatic hydrocarbons (PAHs). The average lengths between the 2010 and 2012 data were generally less than 30% relative percent difference (RPD). Generally, the metals concentrations were lower in 2012 than 2010 with some notable exceptions in Sinclair Inlet and Rich Passage where increases in Ag, Hg, Pb, Cu, and Zn exceeded an RPD of 50% between years. However, they did not exceed the bioaccumulation critical values or the critical body residues corresponding to the no observed effect dose (NOED) and the lowest observed effect dose (LOED) with one exception. The Cd concentrations exceeded the NOED and LOED for the Manchester Lab Pier and the Pike Place Market samples. For the PAHs and PCB, the 2012 data were generally lower than 2010 and some cases significantly lower for PAHs and none of the available invertebrate benchmarks were exceeded.

  6. Air Pollution Control Regulations: No. 7 - Emission of Air Contaminant...

    Broader source: Energy.gov (indexed) [DOE]

    with the enjoyment of life and property. The criteria for determining compliance is listed in the regulations, and is based on other air pollution and ambient air standards...

  7. NIF Ambient Vibration Measurements

    SciTech Connect (OSTI)

    Noble, C.R.; Hoehler, M.S., S.C. Sommer

    1999-11-29T23:59:59.000Z

    LLNL has an ongoing research and development project that includes developing data acquisition systems with remote wireless communication for monitoring the vibrations of large civil engineering structures. In order to establish the capability of performing remote sensing over an extended period of time, the researchers needed to apply this technology to a real structure. The construction of the National Ignition Facility provided an opportunity to test the data acquisition system on a large structure to monitor whether the facility is remaining within the strict ambient vibration guidelines. This document will briefly discuss the NIF ambient vibration requirements and summarize the vibration measurements performed during the Spring and Summer of 1999. In addition, a brief description of the sensors and the data acquisition systems will be provided in Appendix B.

  8. ambient ph-regulated enzime: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    conditions using ambient air quality data Mulholland, James A. 6 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  9. Monitoring the Performance of a Residential Central Air Conditioner under Degraded Conditions on a Test Bench

    E-Print Network [OSTI]

    Palani, M.; O'Neal, D. L.; Haberl, J. S.

    1992-01-01T23:59:59.000Z

    enthalpies at six locations were calculated using the refrigerant property calculation program developed by Kartsounes[26]. Air-side enthalpy, humidity and specific volume were calculated by a psychrometric program developed at the Energy Systems Laboratory... procedure based on measurement of refrigerant and air side temperatures. n TABLE OF CONTENTS CHAPTER Page I INTRODUCTION 1 E LITERATURE REVIEW 3 Service and failure patterns 3 Degradation studies 4 HI MODEL DEVELOPMENT 6 Theory of operation 6 Degraded...

  10. Investigation of Techniques to Improve Continuous Air Monitors Under Conditions of High Dust Loading in Environmental Settings

    SciTech Connect (OSTI)

    Suilou Huang; Stephen D. Schery; John C. Rodgers

    2002-07-23T23:59:59.000Z

    A number of DOE facilities, such as the Los Alamos National Laboratory (LANL) and the Waste Isolation Pilot Plant (WIPP), use alpha-particle environmental continuous air monitors (ECAMs) to monitor air for unwanted releases of radioactive aerosols containing such materials as plutonium and uranium. High sensitivity, ease of operation, and lack of false alarms are all important for ECAMs. The object of the project was to conduct investigations to improve operation of ECAMs, particularly under conditions where a lot of nonradioactive dust may be deposited on the filters (conditions of high dust loading). The presence of such dust may increase the frequency with which filters must be changed and can lead to an increased incidence of false alarms due to deteriorated energy resolution and response specificity to the radionuclides of interest. A major finding of the investigation, not previously documented, was that under many conditions thick layers of underlying nonradioactive dust do not decrease energy resolution and specificity for target radionuclides if the radioactive aerosol arrives as a sudden thin burst deposit, as commonly occurs in the early-warning alarm mode. As a result, operators of ECAMs may not need to change filters as often as previously thought and have data upon which to base more reliable operating procedures.

  11. Los Alamos Air Monitoring Data Related to the Fukushima Daiichi Reactor

    SciTech Connect (OSTI)

    McNaughton, Michael [Los Alamos National Laboratory

    2011-01-01T23:59:59.000Z

    In response to the disasters in Japan on March 11, 2011, Los Alamos National Laboratory (LANL) is collecting air data and analyzing the data for fission products. At present, we report preliminary data from three high-volume air samplers and one stack sampler. Iodine-131 (I-131) is not optimally measured by our standard polypropylene filters. In addition to the filter data, we have one measurement obtained from a charcoal cartridge. These data, together with measurements of other radionuclides are adequate for a preliminary assessment and assure us that radionuclides from Fukushima Daiichi do not present a threat to human health at or near Los Alamos.

  12. Radiation control coatings installed on federal buildings at Tyndall Air Force Base. Volume 2: Long-term monitoring and modeling

    SciTech Connect (OSTI)

    Petrie, T.W.; Childs, P.W.

    1998-06-01T23:59:59.000Z

    The US Department of Energy`s (DOE`s) Federal Energy Management Program (FEMP) supports efforts to reduce energy use and associated expenses in the federal sector. One such effort, the New Technology Demonstration Program (NTDP), seeks to evaluate new energy-saving US technologies and secure their more timely adoption by the US government. Through a partnership with a federal site, the utility serving the site, a manufacturer of an energy-related technology, and other organizations associated with these interests, DOE can evaluate a new technology. The results of the program give federal agency decision makers more hands-on information with which to validate a decision to utilize a new technology in their facilities. This is the second volume of a two-volume report that describes the effects of radiation control coatings installed on federal buildings at Tyndall Air Force Base (AFB) in Florida by ThermShield International. ORNL`s Buildings Technology Center (BTC) was assigned the responsibility for gathering, analyzing, and reporting on the data to describe the effects of the coatings. The first volume described the monitoring plan and its implementation, the results of pre-coating monitoring, the coating installation, results from fresh coatings compared to pre-coating results, and a plan to decommission the monitoring equipment. This second volume updates and completes the presentation of data to compare performance of fresh coatings with weathered coatings.

  13. Healthy Air Act (Maryland)

    Broader source: Energy.gov [DOE]

    The Maryland Healthy Air Act was developed with the purpose of bringing Maryland into attainment with the National Ambient Air Quality Standards (NAAQS) for ozone and fine particulate matter by the...

  14. ambient particle-bound pollution: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORIGINAL ARTICLE Ambient Air Pollution Engineering Websites Summary: ORIGINAL ARTICLE Ambient Air Pollution and...

  15. Monitoring the Performance of a Residential Central Air Conditioner under Degraded Conditions on a Test Bench 

    E-Print Network [OSTI]

    Palani, M.; O'Neal, D. L.; Haberl, J. S.

    1992-01-01T23:59:59.000Z

    constituted 17.2% of the total failure. The failure rates of compressors was 13.5% and outdoor fans was about 11.5%. Lewis surveyed 492 large HVAC dealers to compile information on heat pump service life [5]. He discovered that refrigerant leaks were the major... valve increases. PREDICTION OF DEGRADED CONDITIONS There are several steady state simulation programs which are available to predict the design conditions of air conditioners and heat pumps [20, 21]. The ORNL and NIST models are popular and extensively...

  16. Air Monitoring Modeling of Radioactive Releases During Proposed PFP Complex Demolition Activities

    SciTech Connect (OSTI)

    Napier, Bruce A.; Droppo, James G.; Rishel, Jeremy P.

    2011-01-24T23:59:59.000Z

    This report is part of the planning process for the demolition of the 234-5Z, 236-Z, 242-Z, and 291-Z-1 structures at the Plutonium Finishing Plant (PFP) facilities on the Hanford Site. Pacific Northwest National Laboratory (PNNL) supports the U.S. Department of Energy (DOE) and the CH2M HILL Plateau Remediation Company (CHPRC) demolition planning effort by making engineering estimates of potential releases for various potential demolition alternatives. This report documents an analysis considering open-air demolition using standard techniques. It does not document any decisions about the decommissioning approaches; it is expected that this report will be revisited as demolition plans are finalized.

  17. A Novel, Low-Cost, Reduced-Sensor Approach for Providing Smart Renote Monitoring and Diagnostics for Packaged Air Conditioners and Heat Pumps

    SciTech Connect (OSTI)

    Brambley, Michael R.

    2009-09-01T23:59:59.000Z

    This report describes conceptually an approach to providing automated remote performance and conditioning monitoring and fault detection for air conditioners and heat pumps that shows great promise to reduce the capital and installation costs of such systems from over $1000 per unit to $200 to $400 per unit. The approach relies on non-intrusive electric load monitoring (NIELM) to enable separation of the power use signals of compressors and fans in the air conditioner or heat pump. Then combining information on the power uses and one or two air temperature measurements, changes in energy efficiency and occurrence of major faults would be detected. By decreasing the number of sensors used from between ten and twenty in current diagnostic monitoring systems to three for the envisaged system, the capital cost of the monitoring system hardware and the cost of labor for installation would be decreased significantly. After describing the problem being addressed and the concept for performance monitoring and fault detection in more detail, the report identifies specific conditions and faults that the proposed method would detect, discusses specific needs for successful use of the NIELM approach, and identifies the major elements in the path from concept to a commercialized monitoring and diagnostic system.

  18. ambiental environmental scanning: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Environmental Sciences and Ecology Websites Summary: into the ambient air from uranium mill tailings disposal sites. Subpart T continues to apply to unlicensed uranium, Criteria...

  19. ambient pressure estimation: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    localized orbitals may coexist with supercon- ductivity, the other being Am. In all rare earths Schilling, James 119 Nanoparticle manufacture ambient air chemical and ph...

  20. Air Monitoring Network at Tonopah Test Range: Network Description, Capabilities, and Analytical Results

    SciTech Connect (OSTI)

    Hartwell, William T.; Daniels, Jeffrey; Nikolich, George; Shadel, Craig; Giles, Ken; Karr, Lynn; Kluesner, Tammy

    2012-01-01T23:59:59.000Z

    During the period April to June 2008, at the behest of the Department of Energy (DOE), National Nuclear Security Administration, Nevada Site Office (NNSA/NSO); the Desert Research Institute (DRI) constructed and deployed two portable environmental monitoring stations at the Tonopah Test Range (TTR) as part of the Environmental Restoration Project Soils Activity. DRI has operated these stations since that time. A third station was deployed in the period May to September 2011. The TTR is located within the northwest corner of the Nevada Test and Training Range (NTTR), and covers an area of approximately 725.20 km2 (280 mi2). The primary objective of the monitoring stations is to evaluate whether and under what conditions there is wind transport of radiological contaminants from Soils Corrective Action Units (CAUs) associated with Operation Roller Coaster on TTR. Operation Roller Coaster was a series of tests, conducted in 1963, designed to examine the stability and dispersal of plutonium in storage and transportation accidents. These tests did not result in any nuclear explosive yield. However, the tests did result in the dispersal of plutonium and contamination of surface soils in the surrounding area.

  1. Air Monitoring Network at Tonopah Test Range: Network Description and Capabilities

    SciTech Connect (OSTI)

    Jeffrey Tappen; George Nikolich; Ken Giles; David Shafer; Tammy Kluesner

    2010-05-18T23:59:59.000Z

    During the period April to June 2008, at the behest of the U.S. Department of Energy (DOE) National Nuclear Security Administration, Nevada Site Office (NNSA/NSO); the Desert Research Institute (DRI) constructed and deployed two portable environmental monitoring stations at the Tonopah Test Range (TTR) as part of the Environmental Restoration Project Soils Sub-Project. The TTR is located within the boundaries of the Nevada Test and Training Range (NTTR) near the northern edge, and covers an area of approximately 725.20 km2 (179,200 acres). The primary objective of the monitoring stations is to evaluate whether and under what conditions there is wind transport of radiological contaminants from one of the three Soil Sub-Project Corrective Action Units (CAUs) associated with Operation Roller Coaster on TTR. Operation Roller Coaster was a series of tests, conducted in 1963, designed to examine the stability and dispersal of plutonium in storage and transportation accidents. These tests did not result in any nuclear explosive yield. However, the tests did result in the dispersal of plutonium and contamination of surface soils in the surrounding area.

  2. A sensor management architecture concept for monitoring emissions from open-air demil operations.

    SciTech Connect (OSTI)

    Johnson, Michael M.; Robinson, Jerry D.; Stoddard, Mary Clare; Horn, Brent A.; Lipkin, Joel; Foltz, Greg W.

    2005-09-01T23:59:59.000Z

    Sandia National Laboratories, CA proposed a sensor concept to detect emissions from open-burning/open-detonation (OB/OD) events. The system would serve two purposes: (1) Provide data to demilitarization operations about process efficiency, allowing process optimization for cleaner emissions and higher efficiency. (2) Provide data to regulators and neighboring communities about materials dispersing into the environment by OB/OD operations. The proposed sensor system uses instrument control hardware and data visualization software developed at Sandia National Laboratories to link together an array of sensors to monitor emissions from OB/OD events. The suite of sensors would consist of various physical and chemical detectors mounted on stationary or mobile platforms. The individual sensors would be wirelessly linked to one another and controlled through a central command center. Real-time data collection from the sensors, combined with integrated visualization of the data at the command center, would allow for feedback to the sensors to alter operational conditions to adjust for changing needs (i.e., moving plume position, increased spatial resolution, increased sensitivity). This report presents a systems study of the problem of implementing a sensor system for monitoring OB/OD emissions. The goal of this study was to gain a fuller understanding of the political, economic, and technical issues for developing and fielding this technology.

  3. Data Quality Objectives Supporting Radiological Air Emissions Monitoring for the Marine Sciences Laboratory, Sequim Site

    SciTech Connect (OSTI)

    Barnett, J. M.; Meier, Kirsten M.; Snyder, Sandra F.; Antonio, Ernest J.; Fritz, Brad G.; Poston, Theodore M.

    2012-12-27T23:59:59.000Z

    This document of Data Quality Objectives (DQOs) was prepared based on the U.S. Environmental Protection Agency (EPA) Guidance on Systematic Planning Using the Data Quality Objectives Process, EPA, QA/G4, 2/2006 (EPA 2006), as well as several other published DQOs. The intent of this report is to determine the necessary steps required to ensure that radioactive emissions to the air from the Marine Sciences Laboratory (MSL) headquartered at the Pacific Northwest National Laboratory’s Sequim Marine Research Operations (Sequim Site) on Washington State’s Olympic Peninsula are managed in accordance with regulatory requirements and best practices. The Sequim Site was transitioned in October 2012 from private operation under Battelle Memorial Institute to an exclusive use contract with the U.S. Department of Energy, Office of Science, Pacific Northwest Site Office.

  4. Monitoring

    DOE Patents [OSTI]

    Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

    2004-11-23T23:59:59.000Z

    The invention provides apparatus and methods which facilitate movement of an instrument relative to an item or location being monitored and/or the item or location relative to the instrument, whilst successfully excluding extraneous ions from the detection location. Thus, ions generated by emissions from the item or location can successfully be monitored during movement. The technique employs sealing to exclude such ions, for instance, through an electro-field which attracts and discharges the ions prior to their entering the detecting location and/or using a magnetic field configured to repel the ions away from the detecting location.

  5. Twelve Months of Air Quality Monitoring at Ash Meadows National Wildlife Refuge, Southwestern Rural Nevada, U.S.A (EMSI April 2007)

    SciTech Connect (OSTI)

    Engelbrecht, Johann P; Shafer, David S; Campbell, Dave; Campbell, Scott; McCurdy, Greg; Kohl, Steven D; Nikolich, George; Sheetz, Larry

    2011-08-01T23:59:59.000Z

    The one year of air quality monitoring data collected at the Ash Meadows National Wildlife Refuge (NWR) was the final part of the air quality "Scoping Studies" for the Environmental Monitoring Systems Initiative (EMSI) in southern and central Nevada. The objective of monitoring at Ash Meadows was to examine aerosol and meteorological data, seasonal trends in aerosol and meteorological parameters as well as to examine evidence for long distance transport of some constituents. The 9,307 hectare refuge supports more than 50 springs and 24 endemic species, including the only population of the federally listed endangered Devil’s Hole pupfish (Cyprinodon diabolis) (U.S. Fish and Wildlife Service, 1990). Ash Meadows NWR is located in a Class II air quality area, and the aerosol measurements collected with this study are compared to those of Interagency Monitoring of Protected Visual Environments (IMPROVE) sites. Measurements taken at Ash Meadows NWR over a period of 12 months provide new baseline air quality and meteorological information for rural southwestern Nevada, specifically Nye County and the Amargosa Valley.

  6. DOE/NV/26383-LTR2008-01 Letter Report Yucca Mountain Environmental Monitoring Systems Initiative - Air Quality Scoping Study for Caliente, Lincoln County, Nevada

    SciTech Connect (OSTI)

    J. Engelbrecht; I. Kavouras; D. Campbell; S. Campbell; S. Kohl; D. Shafer

    2009-04-02T23:59:59.000Z

    The Desert Research Institute (DRI) is performing a scoping study as part of the U.S. Department of Energy's Yucca Mountain Environmental Monitoring Systems Initiative (EMSI). The main objective is to obtain baseline air quality information for Yucca Mountain and an area surrounding the Nevada Test Site (NTS). Air quality and meteorological monitoring and sampling equipment housed in a mobile trailer (shelter) is collecting data at eight sites outside the NTS, including Ash Meadows National Wildlife Refuge (NWR), Beatty, Sarcobatus Flats, Rachel, Caliente, Pahranagat NWR, Crater Flat, and Tonopah Airport, and at four sites on the NTS (Engelbrecht et al., 2007a-d). The trailer is stationed at any one site for approximately eight weeks at a time. This letter report provides a summary of air quality and meteorological data, on completion of the site's sampling program.

  7. Nebraska Air Quality Regulations (Nebraska)

    Broader source: Energy.gov [DOE]

    These regulations, promulgated by the Department of Environmental Quality, contain provisions pertaining to ambient air quality standards, pollution source operating permits, emissions reporting,...

  8. Ambient pressure fuel cell system

    DOE Patents [OSTI]

    Wilson, Mahlon S. (Los Alamos, NM)

    2000-01-01T23:59:59.000Z

    An ambient pressure fuel cell system is provided with a fuel cell stack formed from a plurality of fuel cells having membrane/electrode assemblies (MEAs) that are hydrated with liquid water and bipolar plates with anode and cathode sides for distributing hydrogen fuel gas and water to a first side of each one of the MEAs and air with reactant oxygen gas to a second side of each one of the MEAs. A pump supplies liquid water to the fuel cells. A recirculating system may be used to return unused hydrogen fuel gas to the stack. A near-ambient pressure blower blows air through the fuel cell stack in excess of reaction stoichiometric amounts to react with the hydrogen fuel gas.

  9. HIGH SPEED, IN-FLIGHT STRUCTURAL HEALTH MONITORING SYSTEM FOR MEDIUM ALTITUDE LONG ENDURANCE UNMANNED AIR VEHICLE

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    HIGH SPEED, IN-FLIGHT STRUCTURAL HEALTH MONITORING SYSTEM FOR MEDIUM ALTITUDE LONG ENDURANCE on Structural Health Monitoring July 8-11, 2014. La Cité, Nantes, France Copyright © Inria (2014) 274 hal Health Monitoring (2014)" #12;substantiation of structural bonded jointsmay be based on: "repeatable

  10. Investigating the association between birth weight and complementary air pollution metrics: a cohort study.

    E-Print Network [OSTI]

    Laurent, Olivier; Wu, Jun; Li, Lianfa; Chung, Judith; Bartell, Scott

    2013-01-01T23:59:59.000Z

    Collaboration on Air Pollution and Pregnancy Outcomes:Wilhelm M: Ambient air pollution and adverse birth outcomes:L: Maternal exposure to air pollution and birth outcomes.

  11. Investigating the association between birth weight and complementary air pollution metrics: a cohort study

    E-Print Network [OSTI]

    Laurent, Olivier; Wu, Jun; Li, Lianfa; Chung, Judith; Bartell, Scott

    2013-01-01T23:59:59.000Z

    Collaboration on Air Pollution and Pregnancy Outcomes:Wilhelm M: Ambient air pollution and adverse birth outcomes:L: Maternal exposure to air pollution and birth outcomes.

  12. Investigating the association between birth weight and complementary air pollution metrics: a cohort study

    E-Print Network [OSTI]

    Laurent, Olivier; Wu, Jun; Li, Lianfa; Chung, Judith; Bartell, Scott

    2013-01-01T23:59:59.000Z

    Collaboration on Air Pollution and Pregnancy Outcomes:Wilhelm M: Ambient air pollution and adverse birth outcomes:for traffic-related air pollution in an adverse pregnancy

  13. Investigating the association between birth weight and complementary air pollution metrics: a cohort study.

    E-Print Network [OSTI]

    Laurent, Olivier; Wu, Jun; Li, Lianfa; Chung, Judith; Bartell, Scott

    2013-01-01T23:59:59.000Z

    Collaboration on Air Pollution and Pregnancy Outcomes:Wilhelm M: Ambient air pollution and adverse birth outcomes:for traffic-related air pollution in an adverse pregnancy

  14. Measurement of the Tracer Gradient and Sampling System Bias of the Hot Fuel Examination Facility Stack Air Monitoring System

    SciTech Connect (OSTI)

    Glissmeyer, John A.; Flaherty, Julia E.

    2011-07-20T23:59:59.000Z

    This report describes tracer gas uniformity and bias measurements made in the exhaust air discharge of the Hot Fuel Examination Facility at Idaho National Laboratory. The measurements were a follow-up on earlier measurements which indicated a lack of mixing of the two ventilation streams being discharged via a common stack. The lack of mixing is detrimental to the accuracy of air emission measurements. The lack of mixing was confirmed in these new measurements. The air sampling probe was found to be out of alignment and that was corrected. The suspected sampling bias in the air sample stream was disproved.

  15. COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

    SciTech Connect (OSTI)

    Unknown

    2002-04-30T23:59:59.000Z

    The report discusses the following conclusions: (1) The TEOM equipment performed as well as the sequential filter samplers in accounting for ambient PM{sub 2.5} levels; however, the FRM-obtained data was consistently lower than the averages from the TEOM/DRI-SFS measurements; (2) The trending in the PM{sub 2.5} levels was similar for Lawrenceville and Holbrook, which represent an urban and a rural site sixty-five miles apart. This implies that the PM{sub 2.5} levels appear to be impacted more by regional than by local effects; (3) The absolute median PM{sub 2.5} levels were slightly higher for Lawrenceville than for Holbrook, implying that local urban environmental contributions had a minor but measurable effect on total PM{sub 2.5} mass concentration; (4) PM{sub 2.5} and PM{sub 10} mass concentration levels were consistently higher in summer than in winter, with intermediate levels observed in the spring and fall; (5) Sulfate levels predominated in the speciation data obtained from both the Holbrook and the Lawrenceville sites during winter and summer intensive sampling. Sulfate level measured at Holbrook were higher than those taken at Lawrenceville regardless of the season; (6) Ammonium levels remained relatively constant between seasons and between sites; (7) Nitrate levels measured at Lawrenceville were higher than those measured at Holbrook during winter intensive sampling. Nitrate levels measured during the summer intensive period were found to be very low at both locations; (8) In general, the predominant inorganic fraction of the samples analyzed could be described as being composed of a mixture of ammonium bisulfate and ammonium sulfate with minor amounts of ammonium nitrate; (9) The PM10 fraction had a larger percentage of geological material and a smaller percentage of condensable material (ammonium bisulfate, ammonium sulfate, ammonium nitrate and total carbon species) than the PM{sub 2.5} fraction for samples collected in winter at Lawrenceville; and (10) Most high PM{sub 2.5} episodes occurred when the predominating wind direction was from the South-West. (11) Plots of ozone vs. NO{sub x} suggest chemical reaction between these molecules since a high concentration of one always results in a low concentration of the other. The analysis of the acquired data has so far addressed three of the four scientific questions originally posed. More data analysis is on-going including the correlation between O{sub 3} and PM{sub 2.5} levels and the correlation of mass data with meteorological observations.

  16. air injection application: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    environment impact are the most important process in the development of power generation policy in India. A high ambient temperature reduces the air density and makes inlet air...

  17. air emissions control: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the ground surface and the ambient air. This situation creates areas called urban heat 18 Advanced Controls for Industrial Compressed Air Systems Texas A&M University -...

  18. air emissions notice: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the ground surface and the ambient air. This situation creates areas called urban heat 8 The effects of secondary air injection on particulate matter emissions MIT -...

  19. air fresheners emissions: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the ground surface and the ambient air. This situation creates areas called urban heat 11 The effects of secondary air injection on particulate matter emissions MIT -...

  20. air emission notice: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of the ground surface and the ambient air. This situation creates areas called urban heat 8 The effects of secondary air injection on particulate matter emissions MIT -...

  1. Oklahoma Clean Air Act (Oklahoma)

    Broader source: Energy.gov [DOE]

    This legislation establishes the authority for the Oklahoma Department of Environmental Quality to administer programs to maintain and monitor air quality across Oklahoma. The Department monitors...

  2. A process for selecting ecological indicators for application in monitoring impacts to Air Quality Related Values (AQRVs) from atmospheric pollutants. Final report

    SciTech Connect (OSTI)

    White, G.J.; Breckenridge, R.P.

    1997-01-01T23:59:59.000Z

    Section 160 of the Clean Air Act (CAA) calls for measures be taken {open_quotes}to preserve, protect, and enhance air quality in national parks, national wilderness areas, national monuments, national seashores, and other areas of special national or regional natural, recreational, scenic, or historic value.{close_quotes} Pursuant to this, stringent requirement have been established for {open_quotes}Class I{close_quotes} areas, which include most National Parks and Wilderness Areas. Federal Land Managers (FLMs) are charged with the task of carrying out these requirements through the identification of air quality related values (AQRVs) that are potentially at risk from atmospheric pollutants. This is a complex task, the success of which is dependent on the gathering of information on a wide variety of factors that contribute to the potential for impacting resources in Class I areas. Further complicating the issue is the diversity of ecological systems found in Class I areas. There is a critical need for the development of monitoring programs to assess the status of AQRVs in Class I areas with respect to impacts caused by atmospheric pollutants. These monitoring programs must be based on the measurement of a carefully selected suite of key physical, chemical, and biological parameters that serve as indicators of the status of the ecosystems found in Class I areas. Such programs must be both scientifically-based and cost-effective, and must provide the data necessary for FLMs to make objective, defensible decisions. This document summarizes a method for developing AQRV monitoring programs in Class I areas.

  3. Short-term effects of air pollution: a panel study of blood markers in patients with chronic pulmonary disease

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    between fibrinogen and air pollution in these data. In ourbetween particulate air pollution and cardiovascular diseasebetween ambient air pollution and markers of inflammation

  4. Traffic-related air pollution exposures and changes in heart rate variability in Mexico City: A panel study

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    to traffic-related air pollution and the risk of coronaryof particulate air pollution. Environ Health Perspect 2001,between ambient air pollution and daily mortality among

  5. Short-term effects of air pollution: a panel study of blood markers in patients with chronic pulmonary disease

    E-Print Network [OSTI]

    2009-01-01T23:59:59.000Z

    Short-term effects of air pollution: a panel study of bloodindicates that ambient air pollution is associated withto daily changes in air pollution in Erfurt, Germany. 12

  6. 2006 LANL Radionuclide Air Emissions Report

    SciTech Connect (OSTI)

    David P. Fuehne

    2007-06-30T23:59:59.000Z

    This report describes the impacts from emissions of radionuclides at Los Alamos National Laboratory (LANL) for calendar year 2006. This report fulfills the requirements established by the Radionuclide National Emissions Standards for Hazardous Air Pollutants (Rad-NESHAP). This report is prepared by LANL's Rad-NESHAP compliance team, part of the Environmental Protection Division. The information in this report is required under the Clean Air Act and is being reported to the U.S. Environmental Protection Agency (EPA). The highest effective dose equivalent (EDE) to an off-site member of the public was calculated using procedures specified by the EPA and described in this report. LANL's EDE was 0.47 mrem for 2006. The annual limit established by the EPA is 10 mrem per year. During calendar year 2006, LANL continuously monitored radionuclide emissions at 28 release points, or stacks. The Laboratory estimates emissions from an additional 58 release points using radionuclide usage source terms. Also, LANL uses a network of air samplers around the Laboratory perimeter to monitor ambient airborne levels of radionuclides. To provide data for dispersion modeling and dose assessment, LANL maintains and operates meteorological monitoring systems. From these measurement systems, a comprehensive evaluation is conducted to calculate the EDE for the Laboratory. The EDE is evaluated as any member of the public at any off-site location where there is a residence, school, business, or office. In 2006, this location was the Los Alamos Airport Terminal. The majority of this dose is due to ambient air sampling of plutonium emitted from 2006 clean-up activities at an environmental restoration site (73-002-99; ash pile). Doses reported to the EPA for the past 10 years are shown in Table E1.

  7. Air Quality (Nova Scotia, Canada)

    Broader source: Energy.gov [DOE]

    Nova Scotia Environment is responsible for monitoring the air quality in the province, as well as administering fines and permits relating to air quality. The Air Quality Regulations state...

  8. Ambient habitat noise and vibration at the Georgia Aquarium

    E-Print Network [OSTI]

    Johnson, Michael T.

    Ambient habitat noise and vibration at the Georgia Aquarium P. M. Scheifele Department significant levels of background noise due to pumps and motors. This noise, together with pool architecture to quantify the ambient noise levels in the water from machine vibration and from in-air performance speaker

  9. Environmental Quality: Air (Louisiana)

    Broader source: Energy.gov [DOE]

    The Department of Environmental Quality regulates air quality in Louisiana. The Department has an established a fee system for funding the monitoring, investigation and other activities required...

  10. Monitoring firefighter exposure to air toxins at prescribed burns of forest and range biomass. Forest Service research paper

    SciTech Connect (OSTI)

    Reinhardt, T.E.

    1991-10-01T23:59:59.000Z

    A variety of potent air toxins are in the smoke produced by burning forest and range biomass. Preliminary data on firefighter exposures to carbon monoxide and formaldehyde at four prescribed burns of Western United States natural fuels are presented. Formaldehyde may be correlated to carbon monoxide emissions. The firefighters' exposures to these compounds relative to workplace standards are discussed.

  11. Mechanistic modeling of the interrelationships between indoor/outdoor air quality and human exposure in a GIS framework

    SciTech Connect (OSTI)

    Isukapalli, S.S.; Purushothaman, V.; Georgopoulos, P.G.

    1999-07-01T23:59:59.000Z

    Evaluation of human exposure to atmospheric contaminants such as ozone and particulate matter (PM) is often based on measured data from fixed ambient (outdoors) Air Monitoring Stations. This results in an artificial characterization of indoor exposures, as concentrations and physicochemical attributes of indoor pollutants vary significantly and are different from corresponding outdoor values. A mechanistically-based modeling approach is presented here that aims to improve estimates for the outdoor/indoor relationships of photochemical pollutants and of associated fine particles and, subsequently, of human exposure assessments. New approaches for refining the spatial, temporal, and indoor/outdoor patterns of gas phase photochemical contaminants and PM are currently being developed and tested. These approaches are combined with information from either ambient monitoring networks or from ambient air quality models that consider aerosol physics and chemistry coupled with gas phase photochemistry (e.g. UAM-AERO). This process utilizes Geographic Information Systems (GIS) and Relational Database (RD) methods, to facilitate detailed exposure scenario construction (involving e.g. the geographic location of an individual considered in time) and to aid in the estimation of population exposure over selected geographic areas. The combination of monitor data or air quality modeling with microenvironmental modeling in a GIS framework can potentially provide a useful platform for more accurate assessments of human exposure to co-occurring gas and particulate phase air pollutants.

  12. air heaters: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    meteorological fields Aerosol Emissions; Northern Hemispheric 152 Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge...

  13. Winter Heating or Clean Air? Unintended Impacts of China's Huai River Policy

    E-Print Network [OSTI]

    Almond, Douglas

    Air quality in China is notoriously poor. Ambient concentrations of Total Suspended Particulates (TSP) 1981-1993 were more than double China’s National Annual Mean Ambient Air Quality Standard of 200 mg/m-3 (Xiaohui Bi et ...

  14. Radiation control coatings installed on federal buildings at Tyndall Air Force Base. Volume 1: Pre-coating monitoring and fresh coating results

    SciTech Connect (OSTI)

    Petrie, T.W.; Childs, P.W.

    1997-02-01T23:59:59.000Z

    The US Department of Energy`s (DOE`s) Federal Energy Management Program (FEMP) supports efforts to reduce energy use and associated expenses in the federal sector. One such effort, the New Technology Demonstration Program (NTDP), seeks to evaluate new energy-saving US technologies and secure their more timely adoption by the US government. Through a partnership with a federal site, the utility serving the site, a manufacturer of an energy-related technology, and other organizations associated with these interests, DOE can evaluate a new technology. The results of the program give federal agency decision makers more hands-on information with which to validate a decision to utilize a new technology in their facilities. The partnership of these interests is secured through a cooperative research and development agreement (CRADA), in this case between Lockheed Martin Energy Research Corporation, the manager of the Oak Ridge National Laboratory (ORNL), Oak Ridge, Tennessee, and ThermShield International, Ltd., the manufacturer of the technology. This is the first volume of a two-volume report that describes the effects of radiation control coatings installed on federal buildings at Tyndall Air Force Base (AFB) in Florida by ThermShield International. ORNL`s Buildings Technology Center (BTC) was assigned the responsibility for gathering, analyzing, and reporting on the data to describe the effects of the coatings. This volume describes the monitoring plan and its implementation, the results of pre-coating monitoring, the coating installation, results from fresh coatings compared to pre-coating results, and a plan to decommission the monitoring equipment. By including results from roofs at Tyndall AFB and from an outdoor test facility at the BTC, the data cover the range from poorly insulated to well-insulated roofs and two kinds of radiation control coatings on various roof membranes.

  15. Exploring Early Evaluation Techniques of Ambient Health Promoting Devices in Home Environments of Senior

    E-Print Network [OSTI]

    Connelly, Kay

    Plant and the MiMo (Mirror Motive). We used technology probe for early evaluation of the Ambient Plant of a familiar domestic object and practice. 2.1 Prototyping method for Ambient Plant: Technology Probe We upon the existing conceptual models of health monitoring ambient devices. Categories and Subject

  16. Inventory of current environmental monitoring projects in the US-Canadian transboundary region

    SciTech Connect (OSTI)

    Glantz, C.S.; Ballinger, M.Y.; Chapman, E.G.

    1986-05-01T23:59:59.000Z

    This document presents the results of a study commissioned to survey and summarize major environmental monitoring projects in the US-Canadian transboundary region. Projects with field sites located within 400 km (250 mi) of the border and active after 1980 were reviewed. The types of projects included: ambient air-quality monitoring, ambient water-quality monitoring, deposition monitoring, forest/vegetation monitoring and research, soil studies, and ecosystem studies. Ecosystem studies included projects involving the measurement of parameters from more than one monitoring category (e.g., studies that measured both water and soil chemistry). Individual descriptions were formulated for 184 projects meeting the spatial and temporal criteria. Descriptions included the official title for the project, its common abbreviation, program emphasis, monitoring site locations, time period conducted, parameters measured, protocols employed, frequency of sample collection, data storage information, and the principal contact for the project. A summary inventory subdivided according to the six monitoring categories was prepared using a computerized data management system. Information on major centralized data bases in the field of environmental monitoring was also obtained, and summary descriptions were prepared. The inventory and data base descriptions are presented in appendices to this document.

  17. Electrostatic monitoring

    DOE Patents [OSTI]

    Orr, Christopher Henry (Cumbria, GB); Luff, Craig Janson (Cumbria, GB); Dockray, Thomas (Cumbria, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

    2001-01-01T23:59:59.000Z

    The apparatus and method provide a technique for more simply measuring alpha and/or beta emissions arising from items or locations. The technique uses indirect monitoring of the emissions by detecting ions generated by the emissions, the ions being attracted electrostatically to electrodes for discharge of collection. The apparatus and method employ a chamber which is sealed around the item or location during monitoring with no air being drawn into or expelled from the chamber during the monitoring process. A simplified structure and operations arises as a result, but without impairing the efficiency and accuracy of the detection technique.

  18. Flawed analysis of the possibility of air capture

    E-Print Network [OSTI]

    and energetic analysis of cap- turing CO2 from ambient air," House et al. (1) drew an analogy between air, New York, NY 10027; and c Global Thermostat, New York, NY 10025 1. House KZ, et al. (2011) Economic and energetic analysis of capturing CO2 from ambient air. Proc Natl Acad Sci USA 108:20428­20433. 2. Lackner K

  19. Abatement of Air Pollution: Air Pollution Control Equipment and...

    Broader source: Energy.gov (indexed) [DOE]

    These regulations contain instructions for the operation and monitoring of air pollution control equipment, as well as comments on procedures in the event of equipment breakdown,...

  20. Association between Local Traffic-Generated Air Pollution and Preeclampsia and Preterm Delivery in the South Coast Air Basin of California

    E-Print Network [OSTI]

    Wu, Jun; Ren, Cizao; Delfino, Ralph J; Chung, Judith; Wilhelm, Michelle; Ritz, Beate

    2009-01-01T23:59:59.000Z

    Bobak M. 2005. Ambient air pollution and pregnancy outcomes:CO and particulate air pollution and adverse birth outcomesR, Jesdale B. 2008. Air pollution and preeclampsia among

  1. Abatement of Air Pollution: Connecticut Primary and Secondary...

    Broader source: Energy.gov (indexed) [DOE]

    No person shall operate a source which has a significant impact on air quality in such a manner as to cause or contribute to a violation of ambient air quality standards....

  2. Abatement of Air Pollution: Connecticut Primary and Secondary Standards (Connecticut)

    Broader source: Energy.gov [DOE]

    No person shall operate a source which has a significant impact on air quality in such a manner as to cause or contribute to a violation of ambient air quality standards. Connecticut primary and...

  3. Optimizing Electric Humidifier Operation with an Air Side Economizer

    E-Print Network [OSTI]

    Shami, U. F.

    1996-01-01T23:59:59.000Z

    Air side economizer cycle is a control scheme that is often used in WAC systems to reduce cooling energy consumption by introducing variable quantities of ambient air into a conditioned space to satisfy the space cooling load (free cooling...

  4. Short-Term Effects of Air Pollution on Wheeze in Asthmatic Children in Fresno, California

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    Avol E, et  al. 1999. Air pollution and bronchitic symptomsH, White M. 2001. Air pollution and exacerbation of asthmaGG. 2006. Ambient air pollution and asthma exacerbations in

  5. Short-Term Effects of Air Pollution on Wheeze in Asthmatic Children in Fresno, California

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    Short-Term Effects of Air Pollution on Wheeze in Asthmaticchanges in ambient air pollution. Our data suggest the need2004. The effect of air pollution on lung development from

  6. A study of fractionating inlet systems for the dichotomous air sampler

    E-Print Network [OSTI]

    Ripps, Gerald Joseph

    1979-01-01T23:59:59.000Z

    of Aerosols in Ambient Air", Swedish Water and Air Pollu- tion Research Labs. , S-402 24, Gothenburg, Sweden, (1975). (8) Steen, B. , "The Influence of Different Parameters on the Sampling Efficiency of Some Commonly Used Devices for Measuring Particle... Concentrations in Ambient Air", Ph. D. Thesis, Chalmers Institute of Technology, Gothenburg, Sweden, (1975). (9) Steen, B. , and Andreasson, K. , "Comparative Measure- ments of Particle Concentrations in Ambient Air Made at a Background Station...

  7. Installation and certification of continuous VOC emissions monitoring systems for a steel mill sinter plant

    SciTech Connect (OSTI)

    Taylor, K.L.; Macak, J.J. III; Cioffi, J.

    1999-07-01T23:59:59.000Z

    The counties of Lake, Porter, and LaPorte in Northwest Indiana are classified as severe non-attainment for the ozone National Ambient Air Quality Standard (NAAQS). In response to the non-attainment problem, the Indiana Department of Environmental Management (IDEM) promulgated a number of regulations over the last several years. One of these rules requires steel mills with sinter plants to control and continuously monitor volatile organic compound (VOC) emissions from the facilities. One of the accepted compliance methods is to install and certify Continuous Emission Monitoring Systems (CEMS) to monitor VOC emissions and volumetric flow rate in order to generate a VOC emission number in units of pounds per hour. Compliance with the regulation also requires that the sinter plants accurately monitor sinter production in order to determine compliance during the winter months, when the limits are based on pounds of VOC emissions per ton of sinter produced.

  8. Radiation monitor for liquids

    DOE Patents [OSTI]

    Koster, J.E.; Bolton, R.D.

    1999-03-02T23:59:59.000Z

    A radiation monitor for use with liquids that utilizes air ions created by alpha radiation emitted by the liquids as its detectable element. A signal plane, held at an electrical potential with respect to ground, collects these air ions. A guard plane or guard rings is used to limit leakage currents. In one embodiment, the monitor is used for monitoring liquids retained in a tank. Other embodiments monitor liquids flowing through a tank, and bodies of liquids, such as ponds, lakes, rivers and oceans. 4 figs.

  9. Radiation monitor for liquids

    DOE Patents [OSTI]

    Koster, James E. (Los Alamos, NM); Bolton, Richard D. (Los Alamos, NM)

    1999-01-01T23:59:59.000Z

    A radiation monitor for use with liquids that utilizes air ions created by alpha radiation emitted by the liquids as its detectable element. A signal plane, held at an electrical potential with respect to ground, collects these air ions. A guard plane or guard rings is used to limit leakage currents. In one embodiment, the monitor is used for monitoring liquids retained in a tank. Other embodiments monitor liquids flowing through a tank, and bodies of liquids, such as ponds, lakes, rivers and oceans.

  10. Reducing Air Compressor Work by Using Inlet Air Cooling and Dehumidification 

    E-Print Network [OSTI]

    Hardy, Mark James

    2011-02-22T23:59:59.000Z

    are sensitive to ambient conditions, as evidenced by the fact that compressing cooler and drier air decreases the amount of work required to compress the air. A thermodynamic model of an air compressor system was developed and several cases were run by using...

  11. Characterization of ambient particulate matter in the Paso del Norte region

    SciTech Connect (OSTI)

    Li, W.W.; Currey, R.M.; Valenzuela, V.H.; Meuzelaar, H.L.C.; Sheya, S.A.; Anderson, J.R.; Banerjee, S.; Griffin, J.B.

    1999-07-01T23:59:59.000Z

    Air pollution in the Paso del Norte region, where West Texas abuts the southern boundary of New Mexico and the northern boundary of Chihuahua, Mexico is a common concern to the residents on both sides of the border. Parts of the region fail to meet the US and Mexican Ambient Air Quality Standards for particulate matter, ozone, and carbon monoxide. The regional air pollution problem is complicated due to arid climate, complex terrain topography, frequently occurring temperature inversions, extensive unpaved urban areas, an aging and poorly maintained vehicle fleet, and a number of other uncontrolled anthropogenic emission sources. The issue is further complicated by concerns arising from recent scientific evidence of the health effects associated with exposures to fine particulate matter. A study designed to address particulate matter (PM) air pollution problems in the region is currently undertaken by researchers from member universities of the Southwest Center for Environmental Research and Policy and several governmental agencies. The study attempts to (1) characterize the fine fraction of PM; (2) identify and characterize the major regional emission sources; (3) apportion the fine fraction of PM to the source emissions; and (4) establish a regional technological information clearinghouse. The short-term goal of this research is to initiate a research program to characterize, identify, and quantify the sources and nature of the PM in the region. The long-term goal of this study is to establish regional research capabilities to continue air quality monitoring, evaluation, modeling, and control after the implementation of the study. A scoping study to collect regional PM was conducted in December 1998.

  12. Air Quality and Emissions Impacts of Heat Island Mitigation Strategies

    E-Print Network [OSTI]

    Air Quality and Emissions Impacts of Heat Island Mitigation Strategies ENVIRONMENTAL AREA RESEARCH the temperature of the ground surface and the ambient air. This situation creates areas called urban heat summertime temperatures reduces electricity demand for air conditioning, which lowers air pollution levels

  13. Identifying damage locations under ambient vibrations utilizing vector autoregressive models and Mahalanobis distances

    E-Print Network [OSTI]

    Identifying damage locations under ambient vibrations utilizing vector autoregressive models Keywords: Damage location Ambient vibration Vector Autoregressive model Statistical pattern recognition Bridges Structural health monitoring a b s t r a c t This paper presents a study for identifying damage

  14. Air Pollution Issues of the 1990's

    E-Print Network [OSTI]

    Myers, J. C.

    of 1990 will contain. However, many political and economic battles remain to be fought. Currently, the Environmental Protection Agency (EPA) estimates that more than $30 billion a year is being spent to control air pollution in this country (1... or simply air toxics. Like ambient ozone nonattainment, air toxics exemplify the pollution problems of the 1990's. Toxic air emissions often occur in tiny amounts compared to criteria pollutants. The causes and effects can vary dramatically from city...

  15. Westinghouse Hanford Company operational environmental monitoring annual report, CY 1992

    SciTech Connect (OSTI)

    Schmidt, J.W.; Johnson, A.R.; McKinney, S.M.; Perkins, C.J.

    1993-07-01T23:59:59.000Z

    This document presents the results of the Westinghouse Hanford Company near-facility operational environmental monitoring for 1992 in the 100, 200/600, and 300/400 Areas of the Hanford Site, in south-central Washington State in 1992. Surveillance activities included sampling and analyses of ambient air, surface water, groundwater, sediments, soil, and biota. Also, external radiation measurements and radiological surveys were taken at waste disposal sites, radiologically controlled areas, and roads. These activities were conducted to assess and to control the impacts of nuclear facilities and waste sites on the workers and the local environment. Additionally, diffuse sources were monitored to determine compliance with Federal, State, and/or local regulations. In general, although impacts from nuclear facilities are still seen on the Hanford Site and are slightly elevated when compared to offsite, these impacts are less than in previous years.

  16. AMBIENT PM2.5 SAMPLING AND ANALYSIS

    SciTech Connect (OSTI)

    Unknown

    2000-10-01T23:59:59.000Z

    This report summarizes observations and tentative conclusions drawn from evaluations of the data captured to date from the operation of the ambient PM{sub 2.5} speciation sites in a geographical area encompassing southeastern Ohio, western Pennsylvania, and northwestern West Virginia. The overall goal of this program, called the Upper Ohio River Valley Project (UORVP), is to better understand the relationship between coal-based power system emissions and ambient air quality in the upper Ohio River Valley region through the collection of chemically resolved or speciated data.

  17. Exposure information in environmental health research: Current opportunities and future directions for particulate matter, ozone, and toxic air pollutants

    E-Print Network [OSTI]

    McKone, Thomas E.

    2008-01-01T23:59:59.000Z

    Hodis, H.N. Ambient air pollution and atherosclerosis in Loslife style, genetics, and air pollution). An accountabilityH.E. , Peters A. , Air pollution and markers of inflammation

  18. Air pollution exposure during critical time periods in gestation and alterations in cord blood lymphocyte distribution: a cohort of livebirths

    E-Print Network [OSTI]

    2010-01-01T23:59:59.000Z

    J, Bobak M: Ambient air pollution and pregnancy outcomes: aA, Diaz-Sanchez D: Air pollution and allergy: you are whatas: Herr et al. : Air pollution exposure during critical

  19. Variable oxygen/nitrogen enriched intake air system for internal combustion engine applications

    DOE Patents [OSTI]

    Poola, Ramesh B. (Woodridge, IL); Sekar, Ramanujam R. (Naperville, IL); Cole, Roger L. (Elmhurst, IL)

    1997-01-01T23:59:59.000Z

    An air supply control system for selectively supplying ambient air, oxygen enriched air and nitrogen enriched air to an intake of an internal combustion engine includes an air mixing chamber that is in fluid communication with the air intake. At least a portion of the ambient air flowing to the mixing chamber is selectively diverted through a secondary path that includes a selectively permeable air separating membrane device due a differential pressure established across the air separating membrane. The permeable membrane device separates a portion of the nitrogen in the ambient air so that oxygen enriched air (permeate) and nitrogen enriched air (retentate) are produced. The oxygen enriched air and the nitrogen enriched air can be selectively supplied to the mixing chamber or expelled to atmosphere. Alternatively, a portion of the nitrogen enriched air can be supplied through another control valve to a monatomic-nitrogen plasma generator device so that atomic nitrogen produced from the nitrogen enriched air can be then injected into the exhaust of the engine. The oxygen enriched air or the nitrogen enriched air becomes mixed with the ambient air in the mixing chamber and then the mixed air is supplied to the intake of the engine. As a result, the air being supplied to the intake of the engine can be regulated with respect to the concentration of oxygen and/or nitrogen.

  20. Monitoring Software using Sun Spots Corey Andalora

    E-Print Network [OSTI]

    Kaminsky, Alan

    a software application developed for demonstrating a monitoring network for air conditioning units their findings to a central data store. Air conditioning units were the equipment selected for monitoring. Air conditioning units vibrate while operating so they were an obvious choice to use with the accelerometers

  1. AIR QUALITY IMPACTS OF LIQUEFIED NATURAL GAS IN THE SOUTH COAST AIR BASIN OF CALIFORNIA

    SciTech Connect (OSTI)

    Carerras-Sospedra, Marc; Brouwer, Jack; Dabdub, Donald; Lunden, Melissa; Singer, Brett

    2011-07-01T23:59:59.000Z

    The effects of liquefied natural gas (LNG) on pollutant emission inventories and air quality in the South Coast Air Basin of California were evaluated using recent LNG emission measurements by Lawrence Berkeley National Laboratory and the Southern California Gas Company (SoCalGas), and with a state-of-the-art air quality model. Pollutant emissions can be affected by LNG owing to differences in composition and physical properties, including the Wobbe index, a measure of energy delivery rate. This analysis uses LNG distribution scenarios developed by modeling Southern California gas flows, including supplies from the LNG receiving terminal in Baja California, Mexico. Based on these scenarios, the projected penetratino of LNG in the South Coast Air Basin is expected to be limited. In addition, the increased Wobbe index of delivered gas (resulting from mixtures of LNG and conventional gas supplies) is expected to cause increases smaller than 0.05 percent in overall (area-wide) emissions of nitrogen oxides (NOx). BAsed on the photochemical state of the South Coast Air Basin, any increase in NOx is expected to cause an increase in the highest local ozone concentrations, and this is reflected in model results. However, the magnitude of the increase is well below the generally accepted accuracy of the model and would not be discernible with the existing monitoring network. Modeling of hypothetical scenarios indicates that discernible changes to ambient ozone and particulate matter concentrations would occur only at LNG distribution rates that are not achievable with current or planned infrastructure and with Wobbe index vlaues that exceed current gas quality tariffs. Results of these hypothetical scenarios are presented for consideration of any proposed substantial expansion of LNG supply infrastructure in Southern California.

  2. air drilling system: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    an advanced gas engine... Lindsay, B. B.; Koplow, M. D. 1988-01-01 40 Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge...

  3. air coil system: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    an advanced gas engine... Lindsay, B. B.; Koplow, M. D. 1988-01-01 40 Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge...

  4. alam sampel air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 101 Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge Texas A&M...

  5. air bag system: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    an advanced gas engine... Lindsay, B. B.; Koplow, M. D. 1988-01-01 46 Compressed Air Energy Savings: SAV-AIR Monitor and Control System and the PNW Compressed Air Challenge...

  6. Air Capture Introduction and Overview

    E-Print Network [OSTI]

    first." It is much cheaper to capture CO2 from the flue gas of a coal power plant than from ambient air largely eliminated centralized sources of CO2 emissions, especially at coal and natural gas power plants of a facility that captures CO2 from the flue gas of a coal power plant, keeping all possible assumptions

  7. Compressed Air Energy Storage Act (Kansas)

    Broader source: Energy.gov [DOE]

    This act lays out regulations for the local authorities related to site selection, design, operation and monitoring for underground storage of compressed air.

  8. In Situ Electrostatic Separation of Ambient PM2.5 into Source-Specific Fractions During Collection in a FRM Sampler

    SciTech Connect (OSTI)

    Naresh Shah; Frank E. Huggins; Gerald P. Huffman

    2006-07-31T23:59:59.000Z

    Coal combustion is generally viewed as a major source of PM2.5 emissions into the atmosphere. For some time, toxicologists have been asking for an exposure environment enriched with the coal combustion source specific PM{sub 2.5} to conduct meaningful exposure studies to better understand the mechanisms of the adverse health effects of coal combustion specific PM2.5 in the ambient environment. There are several unique characteristics of primary PM generated from coal combustion. In this research project, an attempt has been made to exploit some of the unique properties of PM generated from coal fired power plants to preferentially separate them out from the rest of the primary and secondary PM in the ambient environment. An existing FRM sampler used for monitoring amount of PM{sub 2.5} in the ambient air is modified to incorporate an electrostatic field. A DC corona charging device is also installed at the ambient air inlet to impart positive or negative charge to the PM. Visual Basic software has been written to simulate the lateral movement of PM as it passes through the electrostatic separator under varying operating conditions. The PM samples collected on polycarbonate filters under varying operating conditions were extensively observed for clustering and/or separation of PM in the direction parallel to the electric field. No systematic PM separation was observed under any of the operating conditions. A solution to overcome this kind of turbulence caused remixing has been offered. However, due to major programmatic changes in the DOE UCR program, there are no venues available to further pursue this research.

  9. Cardiopulmonary Toxicity Induced by Ambient Particulate Matter (BI City Concentrated Ambient Particle Study)

    SciTech Connect (OSTI)

    Annette Rohr; James Wagner Masako Morishita; Gerald Keeler; Jack Harkema

    2010-06-30T23:59:59.000Z

    Alterations in heart rate variability (HRV) have been reported in rodents exposed to concentrated ambient particles (CAPs) from different regions of the United States. The goal of this study was to compare alterations in cardiac function induced by CAPs in two distinct regional atmospheres. AirCARE 1, a mobile laboratory with an EPA/Harvard fine particle (particulate matter <2.5 {micro}m; PM{sub 2.5}) concentrator was located in urban Detroit, MI, where the PM mixture is heavily influenced by motor vehicles, and in Steubenville, OH, where PM is derived primarily from long-range transport and transformation of power plant emissions, as well as from local industrial operations. Each city was studied during both winter and summer months, for a total of four sampling periods. Spontaneously hypertensive rats instrumented for electrocardiogram (ECG) telemetry were exposed to CAPs 8 h/day for 13 consecutive days during each sampling period. Heart rate (HR), and indices of HRV (standard deviation of the average normal-to-normal intervals [SDNN]; square root of the mean squared difference of successive normal-to-normal intervals [rMSSD]), were calculated for 30-minute intervals during exposures. A large suite of PM components, including nitrate, sulfate, elemental and organic carbon, and trace elements, were monitored in CAPs and ambient air. In addition, a unique sampler, the Semi-Continuous Elements in Air Sampler (SEAS) was employed to obtain every-30-minute measurements of trace elements. Positive matrix factorization (PMF) methods were applied to estimate source contributions to PM{sub 2.5}. Mixed modeling techniques were employed to determine associations between pollutants/CAPs components and HR and HRV metrics. Mean CAPs concentrations in Detroit were 518 and 357 {micro}g/m{sup 3} (summer and winter, respectively) and 487 and 252 {micro}g/m{sup 3} in Steubenville. In Detroit, significant reductions in SDNN were observed in the summer in association with cement/lime, iron/steel, and gasoline/diesel factors, while associations with the sludge incineration factor and components were less consistent. In winter, increases in HR were associated with a refinery factor and its components. CAPs-associated HR decreases in winter were linked to sludge incineration, cement/lime, and coal/secondary factors and the majority of their associated components. Specific relationships for increased rMSSD in winter were difficult to determine due to lack of consistency between factors and associated constituents. In Steubenville, we observed significant changes in HR (both increases and decreases), SDNN, and rMSSD in the summer, but not in the winter. We examined associations between individual source factors/PM components and HRV metrics segregated by predominant wind direction (NE or SW). Changes in HR (both increases and decreases) were linked with metal processing, waste incineration, and iron/steel factors along with most of their associated elemental constituents. Reductions in SDNN were associated with metal processing, waste incineration, and mobile source factors and the majority of elements loading onto these factors. There were no consistent associations between changes in rMSSD and source factors/components. Despite the large number of coal-fired power plants in the region, and therefore the large contribution of secondary sulfate to overall PM mass, we did not observe any associations with the coal/secondary factor or with the majority of its associated components. There were several inconsistencies in our results which make definitive conclusions difficult. For example, we observed opposing signs of effect estimates with some components depending on season, and with others depending on wind direction. In addition, our extensive dataset clearly would be subject to issues of multiple comparisons, and the 'true' significant results are unknown. Overall, however, our results suggest that acute changes in cardiac function were most strongly associated with local industrial sources. Results for coal-fired power plant-derived PM were

  10. Inertial impaction air sampling device

    DOE Patents [OSTI]

    Dewhurst, K.H.

    1987-12-10T23:59:59.000Z

    An inertial impactor to be used in an air sampling device for collection of respirable size particles in ambient air which may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

  11. Inertial impaction air sampling device

    DOE Patents [OSTI]

    Dewhurst, K.H.

    1990-05-22T23:59:59.000Z

    An inertial impactor is designed which is to be used in an air sampling device for collection of respirable size particles in ambient air. The device may include a graphite furnace as the impaction substrate in a small-size, portable, direct analysis structure that gives immediate results and is totally self-contained allowing for remote and/or personal sampling. The graphite furnace collects suspended particles transported through the housing by means of the air flow system, and these particles may be analyzed for elements, quantitatively and qualitatively, by atomic absorption spectrophotometry. 3 figs.

  12. Offsite environmental monitoring report: Radiation monitoring around United States nuclear test areas, calendar year 1997

    SciTech Connect (OSTI)

    Davis, M.G.; Flotard, R.D.; Fontana, C.A.; Hennessey, P.A.; Maunu, H.K.; Mouck, T.L.; Mullen, A.A.; Sells, M.D.

    1999-01-01T23:59:59.000Z

    This report describes the Offsite Radiological Environmental Monitoring Program (OREMP) conducted during 1997 by the US Environmental Protection Agency`s (EPAs), Radiation and Indoor Environments National Laboratory, Las Vegas, Nevada. This laboratory operated an environmental radiation monitoring program in the region surrounding the Nevada Test Site (NTS) and at former test sites in Alaska, Colorado, Mississippi, Nevada, and New Mexico. The surveillance program is designed to measure levels and trends of radioactivity, if present, in the environment surrounding testing areas to ascertain whether current radiation levels and associated doses to the general public are in compliance with existing radiation protection standards. The surveillance program additionally has the responsibility to take action to protect the health and well being of the public in the event of any accidental release of radioactive contaminants. Offsite levels of radiation and radioactivity are assessed by sampling and analyzing milk, water, and air; by deploying and reading thermoluminescent dosimeters (TLDs); and using pressurized ionization chambers (PICs) to measure ambient gamma exposure rates with a sensitivity capable of detecting low level exposures not detected by other monitoring methods.

  13. Application to Air Pollution 5.1 Introduction

    E-Print Network [OSTI]

    Heckman, Nancy E.

    Chapter 5 Application to Air Pollution Data 5.1 Introduction Ambient ozone pollution in urban areas to us, O 3 , is a secondary pollutant. There are two main kinds of air pollutants: primary and secondary while the air is being carried by winds, secondary pollutants are generally more widespread than primary

  14. ENV 6105 Page 1 of 6 Fall 2011 Air Pollution

    E-Print Network [OSTI]

    Stuart, Amy L.

    ENV 6105 Page 1 of 6 Fall 2011 Syllabus Air Pollution ENV 6105.901 (ref# 90504) Fall 2011 Course Description: A study of air pollution. Emphasis is given to principles underlying our understanding of ambient air pollution, its sources, its effects, and mechanisms for its management. Credit Hours and Work

  15. Did the Clean Air Act cause the remarkable decline in sulfur dioxide concentrations?

    E-Print Network [OSTI]

    Greenstone, Michael

    2003-01-01T23:59:59.000Z

    Over the last three decades, ambient concentrations of sulfur dioxide (SO2) air pollution have declined by approximately 80%. This paper tests whether the 1970 Clean Air Act and its subsequent amendments caused this decline. ...

  16. ambient air engine: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (EAB) integrated with a pylon duct bifurcation in a realistic aircraft engine environment has been analyzed. The EAB uses variable exit guide vanes downstream of a high ......

  17. Improving Boiler Efficiency Modeling Based on Ambient Air Temperature

    E-Print Network [OSTI]

    Zhou, J.; Deng, S.; Claridge, D. E.; Haberl, J. S.; Turner, W. D.

    Optimum economic operation in a large power plant can cut operating costs substantially. Individual plant equipment should be operated under conditions that are most favorable for maximizing its efficiency. It is widely accepted that boiler load...

  18. Improving Boiler Efficiency Modeling Based On Ambient Air Temperature

    E-Print Network [OSTI]

    Zhou, J.; Deng, S.; Turner, W. D.; Claridge, D. E.; Haberl, J. S.

    2002-01-01T23:59:59.000Z

    Optimum economic operation in a large power plant can cut operating costs substantially. Individual plant equipment should be operated under conditions that are most favorable for maximizing its efficiency. It is widely accepted that boiler load...

  19. Optimal Location of a Mobile Sensor Continuum for Environmental Monitoring

    E-Print Network [OSTI]

    Boyer, Edmond

    air pollution monitoring, seismic monitoring, or monitoring of large infrastructures in civil is proposed for the goal of optimal location of a mobile sensor continuum. The monitoring of pollution on a 2D or track distributed environmental phenomena (weather, seismic events, wildfires, air, soil or river

  20. Potential detection systems for monitoring UF{sub 6} releases

    SciTech Connect (OSTI)

    Beck, D.E.; Bostick, W.D.; Armstrong, D.P.; McNeely, J.R.; Stockdale, J.A.D.

    1994-09-01T23:59:59.000Z

    In the near future, the Nuclear Regulatory Commission (NRC) will begin to regulate the gaseous diffusion plants. Them is a concern that the smoke detectors currently used for uranium hexafluoride (UF{sub 6}) release detection will not meet NRC safety system requirements such as high reliability and rapid response. The NRC`s position is that licensees should utilize state-of-the-art equipment such as hydrogen fluoride (HF) detectors that would provide more dependable detection of a UF{sub 6} release. A survey of the literature and current vendor information was undertaken to define the state-of-the-art and commercial availability of HF (or other appropriate) detection systems. For the purpose of this report, classification of the available HF detection systems is made on the basis of detection principle (e.g., calorimetric, electrochemical, separational, or optical). Emphasis is also placed on whether the device is primarily sensitive to response from a point source (e.g., outleakage in the immediate vicinity of a specific set of components), or whether the device is potentially applicable to remote sensing over a larger area. Traditional HF point source monitoring typically uses gas sampling tubes or coated paper tapes with color developing indicator, portable and small area HF monitors are often based upon electrochemical or extractive/separational systems; and remote sensing by optical systems holds promise for indoor and outdoor large area monitoring (including plant boundary/ambient air monitoring).

  1. Puna Geothermal Venture Hydrologic Monitoring Program

    SciTech Connect (OSTI)

    None

    1990-04-01T23:59:59.000Z

    This document provides the basis for the Hydrologic Monitoring Program (HMP) for the Puna Geothermal Venture. The HMP is complementary to two additional environmental compliance monitoring programs also being submitted by Puma Geothermal Venture (PGV) for their proposed activities at the site. The other two programs are the Meteorology and Air Quality Monitoring Program (MAQMP) and the Noise Monitoring Program (NMP), being submitted concurrently.

  2. atmospheric pressure air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    and power for a given heat transfer capability and ambient temperature in an air motorcompressor to achieve a given pressure ratio. It is shown that the optimal frontier is...

  3. E-Print Network 3.0 - air conditioning automatic Sample Search...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    exhaust air... conditions. Because of these external demands, the American Society of Heating, Refrigerating and Air... monitors include a remote alarm signal andor automatic...

  4. AT 560 (2 Credits) Air Pollution Measurement

    E-Print Network [OSTI]

    AT 560 (2 Credits) Air Pollution Measurement Spring 2013 Instructor: Jeff Collett, 491 Resolution and Student Conduct Services." #12;ATS 560 - Air Pollution Measurement Spring 2013 Schedule Useful in experimental air quality monitoring and re- search. 2. Become familiar with the process of designing, proposing

  5. Workshop on indoor air quality research needs

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    Workshop participants report on indoor air quality research needs including the monitoring of indoor air quality, report of the instrumentation subgroup of indoor air quality, health effects, and the report of the control technology session. Risk analysis studies addressing indoor environments were also summarized. (DLS)

  6. Topographic Effects on Ambient Dose Equivalent Rates from Radiocesium Fallout

    E-Print Network [OSTI]

    Malins, Alex; Machida, Masahiko; Saito, Kimiaki

    2015-01-01T23:59:59.000Z

    Land topography can affect air radiation dose rates by locating radiation sources closer to, or further, from detector locations when compared to perfectly flat terrain. Hills and slopes can also shield against the propagation of gamma rays. To understand the possible magnitude of topographic effects on air dose rates, this study presents calculations for ambient dose equivalent rates at a range of heights above the ground for varying land topographies. The geometries considered were angled ground at the intersection of two planar surfaces, which is a model for slopes neighboring flat land, and a simple conical geometry, representing settings from hilltops to valley bottoms. In each case the radiation source was radioactive cesium fallout, and the slope angle was varied systematically to determine the effect of topography on the air dose rate. Under the assumption of homogeneous fallout across the land surface, and for these geometries and detector locations, the dose rates at high altitudes are more strongly...

  7. Assessing Seasonal Confounding and Model Selection Bias in Air Pollution Epidemiology Using Positive and

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Assessing Seasonal Confounding and Model Selection Bias in Air Pollution Epidemiology Using July 15, 1999 #12;Abstract Much of the evidence for health e ects of particulate air pollution has come standards for ambient air pollutants to protect the public from adverse e ects. Much of the evidence for air

  8. Westinghouse Hanford Company operational environmental monitoring annual report, calendar year 1994

    SciTech Connect (OSTI)

    Schmidt, J.; Fassett, J.W.; Johnson, A.R.; Johnson, V.G.; Markes, B.M.; McKinney, S.M.; Moss, K.J.; Perkins, C.J.; Richterich, L.R.

    1995-08-01T23:59:59.000Z

    This document presents the results of the Westinghouse Hanford Company near-facility operational environmental monitoring for 1994 in the 100, 200/600, and 300/400 Areas of the Hanford Site, in south-central Washington State. Surveillance activities included sampling and analyses of ambient air surface water, groundwater, soil, sediments, and biota. Also, external radiation measurements and radiological surveys were taken at waste disposal sites, radiologically controlled areas, and roads. These activities were conducted to assess and control the effects of nuclear facilities and waste sites on the local environment. In addition, diffuse sources were monitored to determine compliance with Federal, State, and/or local regulations. In general, although effects from nuclear facilities are still seen on the Hanford Site and radiation levels are slightly elevated when compared to offsite locations, the differences are less than in previous years.

  9. Westinghouse Hanford Company operational environmental monitoring annual report - calendar year 1995

    SciTech Connect (OSTI)

    Schmidt, J.W., Westinghouse Hanford

    1996-07-30T23:59:59.000Z

    This document summarizes the results of the Westinghouse Hanford Company (WHC) near-facility operational environmental monitoring for 1995 in the 100, 200/600, and 300/400 Areas of the Hanford Site, in south-central Washington State. Surveillance activities included sampling and analyses of ambient air, surface water,groundwater, soil, sediments, and biota. Also, external radiation measurements and radiological surveys were taken at waste disposal sites, radiologically controlled areas, and roads. These activities were conducted to assess and control the effects of nuclear facilities and waste sites on the local environment. In addition, diffuse sources were monitored to determine compliance with Federal, State, and/or local regulations. In general, although effects from nuclear facilities can still be observed on the Hanford Site and radiation levels are slightly elevated when compared to offsite locations, the differences are less than in previous years.

  10. Environmental Applications of Stable Xenon and Radioxenon Monitoring

    SciTech Connect (OSTI)

    Dresel, P. Evan; Olsen, Khris B.; Hayes, James C.; McIntyre, Justin I.; Waichler, Scott R.; Kennedy, B. M.

    2008-06-01T23:59:59.000Z

    Improved detection capabilities are needed at several Department of Energy sites to make remedial decisions about facilities and landfill cleanup. For facility monitoring air samples can be collected from within a facility and analyzed for short lived radioxenons to estimate inventories of residual plutonium holdup within the facility. For landfill cleanup activities soil gas sampling for xenon isotopes can be used to define the locations of spent fuel and transuranic wastes. Short-lived radioxenon isotopes are continuously produced by spontaneous fission of plutonium-240 in transuranic wastes. Large volume soil-gas samples provide extremely sensitive measurement of radioxenon in the subsurface; a characteristic of transuranic waste. The analysis employs a modified Automated Radioxenon Sampling and Analysis (ARSA) system. Proof of principle measurements at a Hanford Site liquid waste disposal site showed xenon-133 at levels in soil gas are approximately 16,000 times the detection limit and lower levels of xenon-135 from the spontaneous fission of plutonium-240 were also measured. Stable xenon isotopes are also produced by spontaneous fission but are subject to background concentrations in ambient air samples (facilities) but less so in soil gas where free exchange with ambient air is restricted. Rare gas mass spectrometry is used for highly precise stable xenon isotopic measurements. Stable xenon isotopic ratios from fission are distinct from natural xenon background ratios. Neutron capture on xenon-135 produces an excess of xenon-136 above fission ratios and thus provides a means of distinguishing reactor sources (e.g. spent fuel) from separated transuranic materials (plutonium).

  11. AMBIENT PM2.5 SAMPLING AND ANALYSIS

    SciTech Connect (OSTI)

    Unknown

    2001-10-31T23:59:59.000Z

    This interim report summarizes detailed findings and conclusions drawn from evaluations of data obtained from the operation of ambient PM{sub 2.5} speciation sites in a geographical area encompassing southeastern Ohio, western Pennsylvania and northwestern West Virginia. The overall goal of this program, called the Upper Ohio River Valley Project (UORVP), is to better understand the relationship between coal-based power system emissions and ambient air quality in the Upper Ohio River Valley region through the collection of chemically resolved or speciated data. A summary of the sampling activities, sample analyses and the correlation and interpretation of data acquired from February 1999 through March of 2001 are reported. Mass and speciated data from urban and rural sources are compared and seasonal variations in PM{sub 2.5} distribution are also examined. Correlations between meteorological parameters and total PM{sub 2.5} mass are also presented.

  12. AMBIENT PM2.5 SAMPLING AND ANALYSIS

    SciTech Connect (OSTI)

    Unknown

    2002-10-31T23:59:59.000Z

    This interim report summarizes detailed findings and conclusions drawn from evaluations of data obtained from the operation of ambient PM{sub 2.5} speciation sites in a geographical area encompassing southeastern Ohio, western Pennsylvania and northwestern West Virginia. The overall goal of this program, called the Upper Ohio River Valley Project (UORVP), is to better understand the relationship between coal-based power system emissions and ambient air quality in the Upper Ohio River Valley region through the collection of chemically resolved or speciated data. A summary of the sampling activities, sample analyses and the correlation and interpretation of data acquired from February 1999 through March of 2001 are reported. Mass and speciated data from urban and rural sources are compared and seasonal variations in PM{sub 2.5} distribution are also examined. Correlations between meteorological parameters and total PM{sub 2.5} mass are also presented.

  13. AMBIENT PM2.5 SAMPLING AND ANALYSIS

    SciTech Connect (OSTI)

    Unknown

    2001-04-30T23:59:59.000Z

    This is the third semi-annual technical progress report summarizing observations and tentative conclusions drawn from evaluations of the data captured to date from the operation of the ambient PM{sub 2.5} speciation sites in a geographical area encompassing southeastern Ohio, western Pennsylvania, and northwestern West Virginia. The overall goal of this program, called the Upper Ohio River Valley Project (UORVP), is to better understand the relationship between coal-based power system emissions and ambient air quality in the upper Ohio River Valley region through the collection of chemically resolved or speciated data. In order to provide a ''stand alone'' document, this report contains updated versions of Section 1 (Introduction) and Section 2 (Experimental) in their entirety from the first report.

  14. Design of an ambient aerosol sampling system for high and medium speed applications

    E-Print Network [OSTI]

    Irshad, Hammad

    2002-01-01T23:59:59.000Z

    Two ambient sampling systems were designed and tested for high speed sampling application for a wind speed range of 4.47 m/s to 26.82 m/s. These systems will be used as inlets for sampling of bioaerosol from air. These systems consist of shrouded...

  15. air filter sensor: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    pollution monitoring in Mauritius. With the fast growing industrial activities on the island, the problem of air pollution is becoming a major concern for the health of the...

  16. Air Pollution Control Rules (West Virginia) | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    Department of Environmental Protection The listed rules were enacted as directed by the Air Pollution Control Act. Together, these rules guide the monitoring, permitting and...

  17. Ambient Corp | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDITCaliforniaWeifangwikiAgouraAlbatechFuels JumpKinetics JumpAmbient

  18. Monitoring materials

    DOE Patents [OSTI]

    Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

    2002-01-01T23:59:59.000Z

    The apparatus and method provide techniques for effectively implementing alpha and/or beta and/or gamma monitoring of items or locations as desired. Indirect alpha monitoring by detecting ions generated by alpha emissions, in conjunction with beta and/or gamma monitoring is provided. The invention additionally provides for screening of items prior to alpha monitoring using beta and/or gamma monitoring, so as to ensure that the alpha monitoring apparatus is not contaminated by proceeding direct to alpha monitoring of a heavily contaminated item or location. The invention provides additional versatility in the emission forms which can be monitored, whilst maintaining accuracy and avoiding inadvertent contamination.

  19. Performance Monitoring

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Optimization Performance Monitoring Performance Monitoring A redirector page has been set up without anywhere to redirect to. Last edited: 2014-08-25 14:37:27...

  20. Resource Management and Scheduling in WSNs Powered by Ambient Energy Harvesting

    E-Print Network [OSTI]

    Uysal-Biyikoglu, Elif

    Resource Management and Scheduling in WSNs Powered by Ambient Energy Harvesting Neyre Tekbiyik and characteristics [1], [14]: ocean water monitoring and bathymetry, avalanche rescue, object tracking, remote harvesting. Since industrial WSNs are expected to be deployed in harsh or inaccessible environments for long

  1. Total Particulate Matter Air Sampling Data (TEOM) from Los Alamos National Laboratory

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    LANL measures the total particulate mass concentration in the air on a routine basis as well as during incidents that may affect ambient air. The collected data is added to the Air Quality Index (AQI). AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act.

  2. Development of methods for evaluating options for improving air quality in Santiago, Chile and its environs. Final report

    SciTech Connect (OSTI)

    Williams, M.D.; Brown, M.J.

    1993-10-01T23:59:59.000Z

    Santiago, Chile has a serious air pollution problem. Aerosols reach very high levels and ozone exceeds US ambient standards on over 100 days a year. Chileans are very concerned about the poor air quality of Santiago and the effect of emissions from their copper smelters both near Santiago and at other sites. Officials from both the Santiago metropolitan air quality commission (La Comision Especial de Descontaminacion de le Region Metropolitana) and a government owned copper development company (La Empress Nacional de Mineria (ENAMI)) have asked for assistance to deal with the air quality problems in the city and associated with smelter emissions. This report describes the first steps in that effort. Santiago lies in a valley between a small coastal range to the west and the towering Andes to the cast. Air motion is greatly affected by the major topographical features which include the Pacific Ocean, the coastal range, and the Andes. In this first year of work the authors concentrated on gathering information on the meteorology, topography, and air quality of the metropolitan region. They examined two smelter sites and applied models to them to help their understanding and to provide assistance to ENAMI. One smelter, Ventanas, was located on the Pacific coast to the northwest of Santiago, while the other, Paipote, was located several hundred kilometers to the north. The Ventanas emissions may potentially affect Santiago air quality. Several advantages of working with the smelters in the first phase of the project are: (1) there is more monitoring in the vicinity of the smelters, (2) the development of a useful emission inventory is easier, (3) they pose a simpler problem of immediate interest whose resolution will provide an early benefit to the Chilean colleagues, and (4) the authors gain important experience as they prepare to delve deeper into Santiago`s air pollution problems.

  3. Beta/alpha continuous air monitor

    DOE Patents [OSTI]

    Becker, Gregory K. (Idaho Falls, ID); Martz, Dowell E. (Grand Junction, CO)

    1989-01-01T23:59:59.000Z

    A single deep layer silicon detector in combination with a microcomputer, recording both alpha and beta activity and the energy of each pulse, distinguishing energy peaks using a novel curve fitting technique to reduce the natural alpha counts in the energy region where plutonium and other transuranic alpha emitters are present, and using a novel algorithm to strip out radon daughter contribution to actual beta counts.

  4. Beta/alpha continuous air monitor

    DOE Patents [OSTI]

    Becker, G.K.; Martz, D.E.

    1988-06-27T23:59:59.000Z

    A single deep layer silicon detector in combination with a microcomputer, recording both alpha and beta activity and the energy of each pulse, distinquishing energy peaks using a novel curve fitting technique to reduce the natural alpha counts in the energy region where plutonium and other transuranic alpha emitters are present, and using a novel algorithm to strip out radon daughter contribution to actual beta counts. 7 figs.

  5. Modelling the e#ects of air pollution on health using Bayesian Dynamic Generalised Linear Models

    E-Print Network [OSTI]

    Bath, University of

    Modelling the e#ects of air pollution on health using Bayesian Dynamic Generalised Linear Models 1 Introduction The potential detrimental e#ects of ambient air pollution is a major issue in public (2004)). Large multi­city studies such as `Air pollution and health: a European approach' (APHEA

  6. Synoptic weather typing applied to air pollution mortality among the elderly in 10 Canadian cities$

    E-Print Network [OSTI]

    Sheridan, Scott

    Synoptic weather typing applied to air pollution mortality among the elderly in 10 Canadian cities 2013 Accepted 12 August 2013 Keywords: Air pollutants Acute health effects Relative mortality risk (large-scale weather systems) affect ambient levels of air pollution, as well as the relationship between

  7. CHAPTER 5: AIR QUALITY 1998 SITE ENVIRONMENTAL REPORT5-1

    E-Print Network [OSTI]

    facility operations and ensure compliance with the federal Clean Air Act, Brookhaven National Laboratory (BNL) performs continu- ous air emission sampling at several facilities. In addition to facility emis radiological and regulated, nonradiological air releases for 1998 are tabulated in this chapter. Ambient

  8. Proposal for a consulting commission Climate and Air Quality of the Austrian Academy of Sciences

    E-Print Network [OSTI]

    Drmota, Michael

    and climate strategies and their relation to air pollution issues · Co-benefit consideration of different issues relating to the atmosphere (air pollution, climate change) and aerosol ­ climate interaction · Exposures to ambient and indoor air pollutants (fine and ultrafine particles) · Epidemiology of disease

  9. Longitudinal Analysis of Short term Bronchiolitis Air Pollution Association using Semi Parametric Models

    E-Print Network [OSTI]

    Mesbah, Mounir

    1 Longitudinal Analysis of Short term Bronchiolitis Air Pollution Association using Semi Parametric of ambient air pollution on infant bronchiolitis hospital consultations. Infant bronchiolitis is a frequent pollution, semi parametric models. 1.1 Introduction Time-series studies of air pollution and health

  10. An idealized assessment of the economics of air capture of carbon dioxide in mitigation policy

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    a c t This paper discusses the technology of direct capture of carbon dioxide from the atmo- sphereAn idealized assessment of the economics of air capture of carbon dioxide in mitigation policy- ture,'' which refers to the direct removal of carbon dioxide from the ambient air. Air capture has

  11. Impact of domestic woodburning appliances on indoor air quality Corinne Mandin1

    E-Print Network [OSTI]

    Boyer, Edmond

    air pollution study (CITEPA), France * Corresponding email: Eva.Leoz@ineris.fr SUMMARY Data pollutants in ambient air. Consequently our study aims at describing both emission factors and inerisImpact of domestic woodburning appliances on indoor air quality Corinne Mandin1 , Jacques Ribéron2

  12. Prediction of Air Conditioning Load Response for Providing Spinning Reserve - ORNL Report

    SciTech Connect (OSTI)

    Kueck, John D [ORNL; Kirby, Brendan J [ORNL; Ally, Moonis Raza [ORNL; Rice, C Keith [ORNL

    2009-02-01T23:59:59.000Z

    This report assesses the use of air conditioning load for providing spinning reserve and discusses the barriers and opportunities. Air conditioning load is well suited for this service because it often increases during heavy load periods and can be curtailed for short periods with little impact to the customer. The report also provides an appendix describing the ambient temperature effect on air conditioning load.

  13. Development of a Computer Heating Monitoring System and Its Applications 

    E-Print Network [OSTI]

    Chen, H.; Li, D.; Shen, L.

    2006-01-01T23:59:59.000Z

    This paper develops a computer heating monitoring system, introduces the components and principles of the monitoring system, and provides a study on its application to residential building heating including analysis of indoor and outdoor air...

  14. Environmental Monitoring Plan: Environmental Monitoring Section. Appendix A, Procedures

    SciTech Connect (OSTI)

    NONE

    1995-02-01T23:59:59.000Z

    This document presents information about the environmental monitoring program at Lawrence Livermore National Laboratory. Topics discussed include: air sampling; air tritium calibrations; storm water discharge; non-storm water discharge; sampling locations; ground water sampling; noise and blast forecasting; analytical laboratory auditing; document retention; procedure writing; quality assurance programs for sampling; soil and sediment sampling; sewage sampling; diversion facility tank sampling; vegetation and foodstuff sampling; and radiological dose assessments.

  15. Characterization of Sensor Performance and Durability for Structural Health Monitoring Systems

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Characterization of Sensor Performance and Durability for Structural Health Monitoring Systems with regard to successfully implementing Structural Health Monitoring technologies in Air Force systems sensor system design and packaging. Keywords: Structural Health Monitoring, Piezo Wafer Active Sensors

  16. Idaho National Laboratory Environmental Monitoring Plan

    SciTech Connect (OSTI)

    Joanne L. Knight

    2008-04-01T23:59:59.000Z

    This plan describes environmental monitoring as required by U.S. Department of Energy (DOE) Order 450.1, “Environmental Protection Program,” and additional environmental monitoring currently performed by other organizations in and around the Idaho National Laboratory (INL). The objective of DOE Order 450.1 is to implement sound stewardship practices that protect the air, water, land, and other natural and cultural resources that may be impacted by DOE operations. This plan describes the organizations responsible for conducting environmental monitoring across the INL, the rationale for monitoring, the types of media being monitored, where the monitoring is conducted, and where monitoring results can be obtained. This plan presents a summary of the overall environmental monitoring performed in and around the INL without duplicating detailed information in the various monitoring procedures and program plans currently used to conduct monitoring.

  17. Idaho National Laboratory Site Environmental Monitoring Plan

    SciTech Connect (OSTI)

    Joanne L. Knight

    2010-10-01T23:59:59.000Z

    This plan describes environmental monitoring as required by U.S. Department of Energy (DOE) Order 450.1, “Environmental Protection Program,” and additional environmental monitoring currently performed by other organizations in and around the Idaho National Laboratory (INL). The objective of DOE Order 450.1 is to implement sound stewardship practices that protect the air, water, land, and other natural and cultural resources that may be impacted by DOE operations. This plan describes the organizations responsible for conducting environmental monitoring across the INL, the rationale for monitoring, the types of media being monitored, where the monitoring is conducted, and where monitoring results can be obtained. This plan presents a summary of the overall environmental monitoring performed in and around the INL without duplicating detailed information in the various monitoring procedures and program plans currently used to conduct monitoring.

  18. Idaho National Laboratory Site Environmental Monitoring Plan

    SciTech Connect (OSTI)

    Joanne L. Knight

    2012-08-01T23:59:59.000Z

    This plan describes environmental monitoring as required by U.S. Department of Energy (DOE) Order 450.1, “Environmental Protection Program,” and additional environmental monitoring currently performed by other organizations in and around the Idaho National Laboratory (INL). The objective of DOE Order 450.1 is to implement sound stewardship practices that protect the air, water, land, and other natural and cultural resources that may be impacted by DOE operations. This plan describes the organizations responsible for conducting environmental monitoring across the INL, the rationale for monitoring, the types of media being monitored, where the monitoring is conducted, and where monitoring results can be obtained. This plan presents a summary of the overall environmental monitoring performed in and around the INL without duplicating detailed information in the various monitoring procedures and program plans currently used to conduct monitoring.

  19. Annual Environmental Monitoring Report Released | Department...

    Office of Environmental Management (EM)

    radioactivity. Visit http:www.cemp.dri.edu for more information on the off-site air monitoring program. "Each year, we use this report as one of our tools to inform the...

  20. Environmental monitoring at the Lawrence Livermore National Laboratory: Annual report, 1987

    SciTech Connect (OSTI)

    Holland, R.C.; Brekke, D.D.

    1988-04-01T23:59:59.000Z

    This report documents the results of the Environmental Monitoring Program at the Lawrence Livermore Laboratory (LLNL) for 1987. To evaluate the effect of LLNL operations on the local environment, measurements were made of direct radiation and a variety of radionuclides and chemical pollutants in ambient air, soil, sewage effluents, surface water, groundwater, vegetation, foodstuff, and milk at both the Livermore site and nearby Site 300. Evaluations were made of LLNL's compliance with the applicable guides, standards, and limits for radiological and nonradiological releases to the environment. The data indicates that the only releases in excess of applicable standards were four releases to the sanitary sewer. LLNL operations had no adverse impact on the environment during 1987. 65 refs., 24 figs.

  1. The chemical instability of Na{sub 2}IrO{sub 3} in air

    SciTech Connect (OSTI)

    Krizan, J.W., E-mail: jkrizan@princeton.edu; Roudebush, J.H.; Fox, G.M.; Cava, R.J.

    2014-04-01T23:59:59.000Z

    Highlights: • Na{sub 2}IrO{sub 3} decomposes rapidly in laboratory air. • The decomposition requires the simultaneous presence of CO{sub 2} and H{sub 2}O. • Decomposition results in a dramatic change in the magnetic properties. • Second 5 K feature in magnetic susceptibility not previously reported. - Abstract: We report that Na{sub 2}IrO{sub 3}, which has a layered honeycomb iridium oxide sublattice interleaved by Na planes, decomposes in laboratory air while maintaining the same basic crystal structure. The decomposition reaction was monitored by time-dependent powder X-ray diffraction under different ambient atmospheres, through which it was determined that it occurs only in the simultaneous presence of both CO{sub 2} and H{sub 2}O. A hydrated sodium carbonate is the primary decomposition product along with altered Na{sub 2}IrO{sub 3}. The diffraction signature of the altered Na{sub 2}IrO{sub 3} is quite similar to that of the pristine material, which makes the detection of decomposition difficult in a sample handled under ordinary laboratory conditions. The decomposed samples show a significantly decreased magnetic susceptibility and the disappearance of the low temperature antiferromagnetic transition considered to be characteristic of the phase. Samples that have never been exposed to air after synthesis display a previously unreported magnetic transition at 5 K.

  2. Modeling of coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in lined rock caverns

    SciTech Connect (OSTI)

    Rutqvist, J.; Kim, H. -M.; Ryu, D. -W.; Synn, J. -H.; Song, W. -K.

    2012-02-01T23:59:59.000Z

    We applied coupled nonisothermal, multiphase fluid flow and geomechanical numerical modeling to study the coupled thermodynamic and geomechanical performance of underground compressed air energy storage (CAES) in concrete-lined rock caverns. The paper focuses on CAES in lined caverns at relatively shallow depth (e.g., 100 m depth) in which a typical CAES operational pressure of 5 to 8 MPa is significantly higher than both ambient fluid pressure and in situ stress. We simulated a storage operation that included cyclic compression and decompression of air in the cavern, and investigated how pressure, temperature and stress evolve over several months of operation. We analyzed two different lining options, both with a 50 cm thick low permeability concrete lining, but in one case with an internal synthetic seal such as steel or rubber. For our simulated CAES system, the thermodynamic analysis showed that 96.7% of the energy injected during compression could be recovered during subsequent decompression, while 3.3% of the energy was lost by heat conduction to the surrounding media. Our geomechanical analysis showed that tensile effective stresses as high as 8 MPa could develop in the lining as a result of the air pressure exerted on the inner surface of the lining, whereas thermal stresses were relatively smaller and compressive. With the option of an internal synthetic seal, the maximum effective tensile stress was reduced from 8 to 5 MPa, but was still in substantial tension. We performed one simulation in which the tensile tangential stresses resulted in radial cracks and air leakage though the lining. This air leakage, however, was minor (about 0.16% of the air mass loss from one daily compression) in terms of CAES operational efficiency, and did not significantly impact the overall energy balance of the system. However, despite being minor in terms of energy balance, the air leakage resulted in a distinct pressure increase in the surrounding rock that could be quickly detected using pressure monitoring outside the concrete lining.

  3. Numerical Analysis of the Channel Wheel Fresh Air Ventilator Under Frosting Conditions

    E-Print Network [OSTI]

    Gao, B.; Dong, Z.; Cheng, Z.; Luo, E.

    2006-01-01T23:59:59.000Z

    As new equipment, the channel wheel fresh air ventilator has become increasingly popular in recent years. However, when such equipment is operated under low ambient temperature in the freezing area in winter, the formation of frost on the outdoor...

  4. Hierarchical Bayesian models for space-time air pollution data

    E-Print Network [OSTI]

    Sahu, Sujit K

    Hierarchical Bayesian models for space-time air pollution data Sujit K. Sahu June 14, 2011 sets have led to a step change in the analysis of space-time air pollution data. Accurate predictions-time air pollution data and illustrate the benefits of modeling with a real data example on monitoring

  5. ambient temperature secondary: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  6. ambient temperature comportement: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  7. ambient temperature creep: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  8. ambient temperatures conditions: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  9. ambient temperature cured: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  10. ambient temperature lithium: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  11. ambient temperature grown: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  12. ambient temperature rechargeable: Topics by E-print Network

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    ambient Environmental Sciences and Ecology Websites Summary: heat production, Q heat loss, C conductance, Tb body temperature, and Ta ambient temperature...

  13. Achieving 50% ionization efficiency in sub-ambient pressure ionization...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    50% ionization efficiency in sub-ambient pressure ionization with nanoelectrospray. Achieving 50% ionization efficiency in sub-ambient pressure ionization with nanoelectrospray....

  14. ambiental para empresas: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 45 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  15. al riesgo ambiental: Topics by E-print Network

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    sociedades y medio ambiente. De hecho, es el objeto de la Boyer, Edmond 11 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  16. ambiente integrado para: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 32 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  17. ambiental estrategica para: Topics by E-print Network

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  18. ambiente para peso: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 28 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  19. ambiente para planejamento: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 38 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  20. ambiental para uso: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 49 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  1. ambiental da transpetro: Topics by E-print Network

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    importante no ambiente (more) Pereira, Mariana de Oliveira 2012-01-01 18 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  2. ambiental del municipio: Topics by E-print Network

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    riego (more) Calgua de Len, Byron Tomas 2013-01-01 3 Prcticas de Evaluacin del Impacto Ambiental Revisin de Estudios de Impacto Ambiental Environmental Sciences and...

  3. ambiente da terapia: Topics by E-print Network

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    importante no ambiente (more) Pereira, Mariana de Oliveira 2012-01-01 25 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  4. ambiente controlado para: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 28 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  5. ambiental para comunidades: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 34 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  6. ambiental para faixas: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 25 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  7. ambiental para empregados: Topics by E-print Network

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  8. ambiental para deposicao: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 25 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  9. ambiental para poblaciones: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 26 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  10. ambiental para implantacao: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 25 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  11. avaliacao ambiental para: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 26 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  12. ambiental da regiao: Topics by E-print Network

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    importante no ambiente (more) Pereira, Mariana de Oliveira 2012-01-01 19 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  13. ambientes reducidos para: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 27 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  14. ambiental da escola: Topics by E-print Network

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    importante no ambiente (more) Pereira, Mariana de Oliveira 2012-01-01 30 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  15. ambiente para atividade: Topics by E-print Network

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    ambiental da (more) Perrone Oviedo, Antnio Francisco 2006-01-01 38 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  16. Robust Speech Recognition Under Noisy Ambient

    E-Print Network [OSTI]

    .................................................................... 142 6.4.1 Speech Enhancement Techniques .......................................................... 143CHAPTER Robust Speech Recognition Under Noisy Ambient Conditions 6Kuldip K. Paliwal School of Microelectronic Engineering, Griffith University, Brisbane, Australia Kaisheng Yao Speech Component Group

  17. MAS.963 Ambient Intelligence, Spring 2004

    E-Print Network [OSTI]

    Maes, Patricia

    This course focuses on Ambient Intelligence, and how it envisions a world where people are surrounded by intelligent and intuitive interfaces embedded in the everyday objects around them. These interfaces recognize and ...

  18. Tunable Diode Laser Sensor for Monitoring and Control of Harsh Combustion Environments

    SciTech Connect (OSTI)

    VonDrasek, William; Melsio-Pubill, Anna

    2006-05-30T23:59:59.000Z

    This work represents the collaborative effort between American Air Liquide and Physical Sciences, Inc. for developing a sensor based on near-IR tunable diode lasers (TDL). The multi-species capability of the sensor for simultaneous monitoring of CO, O2, and H2O concentration as well as gas temperature is ideal for in-situ monitoring on industrial furnaces. The chemical species targeted are fundamental for controlling the combustion space for improved energy efficiency, reduced pollutants, and improved product quality, when coupling the measurement to a combustion control system. Several add-on modules developed provide flexibility in the system configuration for handling different process monitoring applications. For example, the on-Demand Power Control system for the 1.5 ?m laser is used for high particle density exhaust streams where laser transmission is problematic. For long-distance signal collection a fiber optic communication system is used to reduce noise pick-up. Finally, hardened modules to withstand high ambient temperatures, immune to EMF interference, protection from flying debris, and interfaced with pathlength control laser beam shielding probes were developed specifically for EAF process monitoring. Demonstration of these different system configurations was conducted on Charter Steel's reheat furnace, Imco Recycling, Inc. (now Aleris International, Inc.) aluminum reverberatory furnace, and Gerdau Ameristeel's EAF. Measurements on the reheat furnace demonstrated zone monitoring with the measurement performed close to the steel billet. Results from the aluminum furnace showed the benefit of measuring in-situ near the bath. In this case, low-level furnace optimization was performed and demonstrated 5% fuel savings. Monitoring tests on the EAF off-gas demonstrated the level of industrialization of the sensor to survive the harsh EAF environment. Long-term testing on the EAF has been on-going for over 6 months with essentially zero maintenance. Validation of the TDL measurement on the EAF was confirmed by comparison with extractive sampling CO measurements.

  19. Successes and failures in using the ambient ratio method to estimate annual NO{sub 2} impacts

    SciTech Connect (OSTI)

    Chico, T. [South Coast AQMD, Diamond Bar, CA (United States); Wong, H. [Hawaii State Dept. of Health, Honolulu, HI (United States); Schuler, A. [Alaska Dept. of Environmental Conservation, Juneau, AK (United States)

    1998-12-31T23:59:59.000Z

    At the 84th Annual Meeting of the A and WMA in 1991, Chu and Meyer proposed an alternative to the ozone limiting method (OLM) for estimating the effects of NO{sub x} emission sources on annual NO{sub 2} concentrations. Their approach, called the ambient ratio method (ARM), uses standard Gaussian dispersion models to predict NO{sub x} concentrations and the observed NO{sub 2}-to-NO{sub x} ratio to estimate the conversion of NO to NO{sub 2}. The ARM is currently the refined approach for annual NO{sub 2} modeling in the Guideline on Air Quality Models. The purpose of this paper is to present the varied experiences of several states and local air pollution agencies in applying the ARM. The South Coast Air Quality Management District in California reviewed NO{sub x} data from 22 urban monitoring stations. In general, NO{sub 2} and NO{sub x} air quality has been gradually improving over the last seven years. In addition, the NO{sub 2} to-NO{sub x} ratio has also trended downward, therefore supporting the use of the most recent data, as recommended by Chu and Meyer. The diurnal trends in both NO{sub 2} and NO{sub x} support the recommendation to calculate the ratio from the daytime averages of NO{sub 2} and NO{sub x}. All 22 sites have NO{sub 2}-to-NOx ratios less than the national default of 0.75, three sites have ratios between 0.60 and 0.69, ten sites have ratios between 0.50 and 0.59, and six sites have ratios between 0.40 and 0.49. The 20 ppb lower quantification threshold is problematic for areas with relatively low NO{sub x} concentrations, such as Alaska. The State of Alaska reviewed three years of data submitted by a private company seeking an alternative ARM value. While the data capture was around 98 percent, only four to eight percent of the data exceeded 20 ppb. This leaves insufficient data to determine the annual average NO{sub 2} and NO{sub x} concentrations needed to support an alternative ARM value.

  20. Method and apparatus for reducing cold-phase emissions by utilizing oxygen-enriched intake air

    DOE Patents [OSTI]

    Poola, Ramesh B. (Woodridge, IL); Sekar, Ramanujam R. (Naperville, IL); Stork, Kevin C. (Chicago, IL)

    1997-01-01T23:59:59.000Z

    An oxygen-enriched air intake control system for an internal combustion engine includes air directing apparatus to control the air flow into the intake of the engine. During normal operation of the engine, ambient air flowing from an air filter of the engine flows through the air directing apparatus into the intake of the engine. In order to decrease the amount of carbon monoxide (CO) and hydrocarbon (HC) emissions that tend to be produced by the engine during a short period of time after the engine is started, the air directing apparatus diverts for a short period of time following the start up of the engine at least a portion of the ambient air from the air filter through a secondary path. The secondary path includes a selectively permeable membrane through which the diverted portion of the ambient air flows. The selectively permeable membrane separates nitrogen and oxygen from the diverted air so that oxygen enriched air containing from about 23% to 25% oxygen by volume is supplied to the intake of the engine.

  1. Air Leakage and Air Transfer Between Garage and Living Space

    SciTech Connect (OSTI)

    Rudd, A.

    2014-09-01T23:59:59.000Z

    This research project focused on evaluation of air transfer between the garage and living space in a single-family detached home constructed by a production homebuilder in compliance with the 2009 International Residential Code and the 2009 International Energy Conservation Code. The project gathered important information about the performance of whole-building ventilation systems and garage ventilation systems as they relate to minimizing flow of contaminated air from garage to living space. A series of 25 multi-point fan pressurization tests and additional zone pressure diagnostic testing characterized the garage and house air leakage, the garage-to-house air leakage, and garage and house pressure relationships to each other and to outdoors using automated fan pressurization and pressure monitoring techniques. While the relative characteristics of this house may not represent the entire population of new construction configurations and air tightness levels (house and garage) throughout the country, the technical approach was conservative and should reasonably extend the usefulness of the results to a large spectrum of house configurations from this set of parametric tests in this one house. Based on the results of this testing, the two-step garage-to-house air leakage test protocol described above is recommended where whole-house exhaust ventilation is employed. For houses employing whole-house supply ventilation (positive pressure) or balanced ventilation (same pressure effect as the Baseline condition), adherence to the EPA Indoor airPLUS house-to-garage air sealing requirements should be sufficient to expect little to no garage-to-house air transfer.

  2. Air Quality: Construction Project Air Permit Requirements

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Air Quality: Construction Project Air Permit Requirements Department: Chemical and General Safety Program: Air Quality Owner: Program Manager Authority: ES&H Manual, Chapter 30, Air Quality1 All manager or operator must submit the completed form to the air quality program manager before the project

  3. Hanford site near-facility environmental monitoring annual report, calendar year 1996

    SciTech Connect (OSTI)

    Perkins, C.J.

    1997-08-05T23:59:59.000Z

    This document summarizes the results of the near-facility environmental monitoring results for 1996 in the 100, 200/600, and 300/400 areas of the Hanford Site in south-central Washington State. Surveillance activities included sampling and analyses of ambient air, surface water, groundwater, soil, sediments, and biota. Also, external radiation measurements and radiological surveys were taken at waste disposal sites, radiologically controlled areas, and roads. These activities were conducted to assess and control the effects of nuclear facilities and waste sites on the local environment. The monitoring implements applicable portions of DOE Orders 5400.1 (DOE 1988a), 5400.5 (DOE 1990), and 5820.2A (DOE 1988b); Washington Administrative Code (WAC) 246-247; and Title 40 Code of Federal Regulations (CFR) Part 61, Subpart H (EPA 1989). In addition, diffuse sources were monitored to determine compliance with federal, state, and/or local regulations. In general, although effects from nuclear facilities can still be observed on the Hanford Site and radiation levels were slightly elevated when compared to offsite locations, the differences are less than in previous years.

  4. A statistical comparison of impact and ambient testing results from the Alamosa Canyon Bridge

    SciTech Connect (OSTI)

    Doebling, S.W.; Farrar, C.R. [Los Alamos National Lab., NM (United States); Cornwell, P. [Rose Hulman Inst. of Tech., Terre Haute, IN (United States)

    1996-12-31T23:59:59.000Z

    In this paper, the modal properties of the Alamosa Canyon Bridge obtained using ambient data are compared to those obtained from impact hammer vibration tests. Using ambient sources of excitation to determine the modal characteristics of large civil engineering structures is desirable for several reasons. The forced vibration testing of such structures generally requires a large amount of specialized equipment and trained personnel making the tests quite expensive. Also, an automated health monitoring system for a large civil structure will most likely use ambient excitation. A modal identification procedure based on a statistical Monte Carlo analysis using the Eigensystem Realization Algorithm is used to compute the modal parameters and their statistics. The results show that for most of the measured modes, the differences between the modal frequencies of the ambient and hammer data sets are statistically significant. However, the differences between the corresponding damping ratio results are not statistically significant. Also, one of the modes identified from the hammer test data was not identifiable from the ambient data set.

  5. INEEL AIR MODELING PROTOCOL ext

    SciTech Connect (OSTI)

    C. S. Staley; M. L. Abbott; P. D. Ritter

    2004-12-01T23:59:59.000Z

    Various laws stemming from the Clean Air Act of 1970 and the Clean Air Act amendments of 1990 require air emissions modeling. Modeling is used to ensure that air emissions from new projects and from modifications to existing facilities do not exceed certain standards. For radionuclides, any new airborne release must be modeled to show that downwind receptors do not receive exposures exceeding the dose limits and to determine the requirements for emissions monitoring. For criteria and toxic pollutants, emissions usually must first exceed threshold values before modeling of downwind concentrations is required. This document was prepared to provide guidance for performing environmental compliance-driven air modeling of emissions from Idaho National Engineering and Environmental Laboratory facilities. This document assumes that the user has experience in air modeling and dose and risk assessment. It is not intended to be a "cookbook," nor should all recommendations herein be construed as requirements. However, there are certain procedures that are required by law, and these are pointed out. It is also important to understand that air emissions modeling is a constantly evolving process. This document should, therefore, be reviewed periodically and revised as needed. The document is divided into two parts. Part A is the protocol for radiological assessments, and Part B is for nonradiological assessments. This document is an update of and supersedes document INEEL/INT-98-00236, Rev. 0, INEEL Air Modeling Protocol. This updated document incorporates changes in some of the rules, procedures, and air modeling codes that have occurred since the protocol was first published in 1998.

  6. CursodeEvaluacindeImpactoAmbiental PROCEDIMIENTO ADMINISTRATIVO DE LA

    E-Print Network [OSTI]

    Espigares, Tíscar

    Ministerio de Medio Ambiente, y Medio Rural y Marino. · El proceso de Evaluación Ambiental de Proyectos a disfrutar de un medio ambiente adecuado para el desarrollo de la persona, así como el deber de conservarlo determinados planes y programas en el medio ambiente. · Marco Autonómico: Desarrollo a nivel de CCAA de la

  7. Ion Monitoring

    DOE Patents [OSTI]

    Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM)

    2003-11-18T23:59:59.000Z

    The apparatus and method provide a technique for significantly reducing capacitance effects in detector electrodes arising due to movement of the instrument relative to the item/location being monitored in ion detection based techniques. The capacitance variations are rendered less significant by placing an electrically conducting element between the detector electrodes and the monitored location/item. Improved sensitivity and reduced noise signals arise as a result. The technique also provides apparatus and method suitable for monitoring elongate items which are unsuited to complete enclosure in one go within a chamber. The items are monitored part by part as the pass through the instrument, so increasing the range of items or locations which can be successfully monitored.

  8. A battery-free tag for wireless monitoring of heart sounds

    E-Print Network [OSTI]

    Mandal, Soumyajit

    We have developed a wearable, battery-free tag that monitors heart sounds. The tag powers up by harvesting ambient RF energy, and contains a low-power integrated circuit, an antenna and up to four microphones. The chip, ...

  9. Laser ablated copper plasmas in liquid and gas ambient

    SciTech Connect (OSTI)

    Kumar, Bhupesh; Thareja, Raj K. [Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208 016 (India)] [Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208 016 (India)

    2013-05-15T23:59:59.000Z

    The dynamics of copper ablated plasma plumes generated using laser ablation of copper targets in both liquid (de-ionized water) and gas (air) ambients is reported. Using time and space resolved visible emission spectroscopy (450-650 nm), the plasma plumes parameters are investigated. The electron density (n{sub e}) determined using Stark broadening of the Cu I (3d{sup 10}4d{sup 1} {sup 2}D{sub 3/2}-3d{sup 10}4p{sup 1} {sup 2}P{sub 3/2} at 521.8 nm) line is estimated and compared for both plasma plumes. The electron temperature (T{sub e}) was estimated using the relative line emission intensities of the neutral copper transitions. Field emission scanning electron microscopy and energy dispersive x-ray spectral analysis of the ablated copper surface indicated abundance of spherical nanoparticles in liquid while those in air are amalgamates of irregular shapes. The nanoparticles suspended in the confining liquid form aggregates and exhibit a surface plasmon resonance at ?590 nm.

  10. Suncatcher monitoring project

    SciTech Connect (OSTI)

    Maeda, B.

    1980-01-01T23:59:59.000Z

    An intensive microcomputer-based energy monitoring project was conducted on a passively heated and cooled residence in Davis, California. The building performance was estimated in the design phase by both a simplified method and an hourly simulation. In the monitoring phase, more than 75 sensors, located in the building elements, interior spaces, appliances, and the ambient environment provide data about temperatures, energy use and radiation. These data are used to determine the actual solar system contributions, and to validate and improve design calculation tools. Information was gathered on the Suncatcher system for almost three years. Daily min/max temperatures inside and outside of the house and utility use have been reduced and analyzed. From these data we calculate the monthly net heating load and the percentage of that met by solar energy. To date, it has averaged 71%. Hourly data, gathered by the custom-made data acquisition system, show how daily temperature and radiation patterns change. Natural cooling supplied 100% of the cooling need. During the hot summers typical of the Davis area, the house has remained very comfortable virtually all of the time, except for two or three afternoons each summer, where temperatures reached a stuffy 83 or 84F. The other solar energy source, the solar hot water system, has provided 50 to 60% of the hot water needed by the residents, who use less domestic hot water than average.

  11. 1 Bayesian Analysis of a Reduced-Form Air Quality Model 2 Kristen M Foley,*,

    E-Print Network [OSTI]

    Reich, Brian J.

    1 Bayesian Analysis of a Reduced-Form Air Quality Model 2 Kristen M Foley,*, Brian J. Reich, North Carolina, United States 5 *S Supporting Information 6 ABSTRACT: Numerical air quality models are being used for assessing emission control 7 strategies for improving ambient pollution levels across

  12. Reducing Air Compressor Work by Using Inlet Air Cooling and Dehumidification

    E-Print Network [OSTI]

    Hardy, Mark James

    2011-02-22T23:59:59.000Z

    Ambient Relative Humidity 20-100% In this study, three separate cases are considered, and a separate model has been developed for each case. The first case serves as a base case to examine the work input of the compressor system without inlet air.... Also, the compressors were modeled as isentropic, which is not representative of an actual case. Future studies can determine the effects of non-isentropic compression and how behavior of real compressors will deviate from the model presented...

  13. Projection screen having reduced ambient light scattering

    DOE Patents [OSTI]

    Sweatt, William C. (Albuquerque, NM)

    2010-05-11T23:59:59.000Z

    An apparatus and method for improving the contrast between incident projected light and ambient light reflected from a projection screen are described. The efficiency of the projection screen for reflection of the projected light remains high, while permitting the projection screen to be utilized in a brightly lighted room. Light power requirements from the projection system utilized may be reduced.

  14. Ambient Telepresence: Colleague Awareness in Smart Environments

    E-Print Network [OSTI]

    Beigl, Michael

    · Building smartness into the things that surround us rather than introducing new smart devices · CollectingAmbient Telepresence: Colleague Awareness in Smart Environments Hans-W. Gellersen and Michael Beigl-located. In this approach, everyday things that people use are augmented with awareness technology, creating a smart

  15. RADIONUCLIDE TRANSPORT MODELS UNDER AMBIENT CONDITIONS

    SciTech Connect (OSTI)

    S. Magnuson

    2004-11-01T23:59:59.000Z

    The purpose of this model report is to document the unsaturated zone (UZ) radionuclide transport model, which evaluates, by means of three-dimensional numerical models, the transport of radioactive solutes and colloids in the UZ, under ambient conditions, from the repository horizon to the water table at Yucca Mountain, Nevada.

  16. Radionuclide Transport Models Under Ambient Conditions

    SciTech Connect (OSTI)

    G. Moridis; Q. Hu

    2001-12-20T23:59:59.000Z

    The purpose of Revision 00 of this Analysis/Model Report (AMR) is to evaluate (by means of 2-D semianalytical and 3-D numerical models) the transport of radioactive solutes and colloids in the unsaturated zone (UZ) under ambient conditions from the potential repository horizon to the water table at Yucca Mountain (YM), Nevada.

  17. SEISMIC VULNERABILITY ASSESSMENT USING AMBIENT VIBRATIONS

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    SEISMIC VULNERABILITY ASSESSMENT USING AMBIENT VIBRATIONS: METHOD AND VALIDATION Clotaire Michel, France cmichel@obs.ujf-grenoble.fr Abstract Seismic vulnerability in wide areas is usually assessed like USA or Italy. France is a country with moderate seismicity so that it requires lower-cost methods

  18. High strength air-dried aerogels

    DOE Patents [OSTI]

    Coronado, Paul R.; Satcher, Jr., Joe H.

    2012-11-06T23:59:59.000Z

    A method for the preparation of high strength air-dried organic aerogels. The method involves the sol-gel polymerization of organic gel precursors, such as resorcinol with formaldehyde (RF) in aqueous solvents with R/C ratios greater than about 1000 and R/F ratios less than about 1:2.1. Using a procedure analogous to the preparation of resorcinol-formaldehyde (RF) aerogels, this approach generates wet gels that can be air dried at ambient temperatures and pressures. The method significantly reduces the time and/or energy required to produce a dried aerogel compared to conventional methods using either supercritical solvent extraction. The air dried gel exhibits typically less than 5% shrinkage.

  19. Development of a Low-Cost Particulate Matter Monitor

    SciTech Connect (OSTI)

    White, Richard M.; Apte, Michael G.; Gundel, Lara A.; Black, Justin

    2008-08-01T23:59:59.000Z

    We describe a small, inexpensive portable monitor for airborne particulates, composed of the following elements: a. A simple size-selective inlet (vertical elutriator) that permits only particles below a pre-set diameter to pass and enter the measurement section; b. A measurement section in which passing particles are deposited thermophoretically on a micro-fabricated resonant piezoelectric mass sensor; c. An optical characterization module co-located with the mass sensor module that directs infrared and ultraviolet beams through the deposit. The emergent optical beams are detected by a photodiode. The optical absorption of the deposit can be measured in order to characterize the deposit, and determine how much is due to diesel exhaust and/or environmental tobacco smoke; and d. A small pump that moves air through the device, which may also be operated in a passive mode. The component modules were designed by the project team, and fabricated at UCB andLBNL. Testing and validation were performed in a room-sized environmental chamber at LBNL in to which was added either environmental tobacco smoke (ETS, produced by a cigarette smoking machine) or diesel exhaust (from a conventional diesel engine). Two pilot field tests in a dwelling compared the monitor with existing aerosol instruments during exposure to infiltrated ambient air to which cigarette smoke, diesel exhaust, wood smoke and cooking fumes were added. The limit of detection (LOD) derived from statistical analysis of field data is 18 mu g m-3, at the 99percent confidence level. The monitor weighs less than 120 g and has a volume of roughly 250 cm3. Power consumption is approximately 100 milliwatts. During this study, the optical component of the device was not fully implemented and has been left for future efforts. Suggested improvements in the current prototype include use of integrated thermal correction, reconfiguration of the resonator for increased particle collection area, increased thermophoretic collection efficiency using an increased temperature gradient, and shielding the resonator electronics from deposition of ultrafine particles.

  20. Idaho National Laboratory Site Environmental Monitoring Plan

    SciTech Connect (OSTI)

    Jenifer Nordstrom

    2014-02-01T23:59:59.000Z

    This plan provides a high-level summary of environmental monitoring performed by various organizations within and around the Idaho National Laboratory (INL) Site as required by U.S. Department of Energy (DOE) Order 435.1, Radioactive Waste Management, and DOE Order 458.1, Radiation Protection of the Public and the Environment, Guide DOE/EH-0173T, Environmental Regulatory Guide for Radiological Effluent Monitoring and Environmental Surveillance, and in accordance with 40 Code of Federal Regulations (CFR) 61, National Emission Standards for Hazardous Air Pollutants. The purpose of these orders is to 1) implement sound stewardship practices that protect the air, water, land, and other natural and cultural resources that may be impacted by DOE operations, and 2) to establish standards and requirements for the operations of DOE and DOE contractors with respect to protection of the environment and members of the public against undue risk from radiation. This plan describes the organizations responsible for conducting environmental monitoring across the INL Site, the rationale for monitoring, the types of media being monitored, where the monitoring is conducted, and where monitoring results can be obtained. Detailed monitoring procedures, program plans, or other governing documents used by contractors or agencies to implement requirements are referenced in this plan. This plan covers all planned monitoring and environmental surveillance. Nonroutine activities such as special research studies and characterization of individual sites for environmental restoration are outside the scope of this plan.

  1. High Energy Efficiency Air Conditioning

    SciTech Connect (OSTI)

    Edward McCullough; Patrick Dhooge; Jonathan Nimitz

    2003-12-31T23:59:59.000Z

    This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

  2. Metal-Air Batteries

    SciTech Connect (OSTI)

    Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

    2011-08-01T23:59:59.000Z

    Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

  3. Monitoring well

    DOE Patents [OSTI]

    Hubbell, Joel M. (Idaho Falls, ID); Sisson, James B. (Idaho Falls, ID)

    2002-01-01T23:59:59.000Z

    The present invention relates to a monitoring well which includes an enclosure defining a cavity and a water reservoir enclosed within the cavity and wherein the reservoir has an inlet and an outlet. The monitoring well further includes a porous housing borne by the enclosure and which defines a fluid chamber which is oriented in fluid communication with the outlet of the reservoir, and wherein the porous housing is positioned in an earthen soil location below-grade. A geophysical monitoring device is provided and mounted in sensing relation relative to the fluid chamber of the porous housing; and a coupler is selectively moveable relative to the outlet of reservoir to couple the porous housing and water reservoir in fluid communication. An actuator is coupled in force transmitting relation relative to the coupler to selectively position the coupler in a location to allow fluid communication between the reservoir and the fluid chamber defined by the porous housing.

  4. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01T23:59:59.000Z

    system on perceived air quality, Indoor Air 2008, August 17-perception of indoor air quality during immediate and longeraddressing indoor air quality, thermal environment, lighting

  5. Air temperature thresholds for indoor comfort and perceived air quality

    E-Print Network [OSTI]

    Zhang, Hui; Edward, Arens; Pasut, Wilmer

    2012-01-01T23:59:59.000Z

    in the Netherlands, Indoor Air 2, 127 – 136. BuildingPaliaga, G. (2009) Moving air for comfort. ASHRAE Journal,ventilation system on perceived air quality, Indoor Air

  6. ambient computing research: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ambient occlusion computation Mirko Sattler, Ralf Sarlette, Gabriel Zachmann, Reinhard Klein Computer Technologies and Information Sciences Websites Summary:...

  7. AN EARLY WARNING SYSTEM FOR AMBIENT ASSISTED LIVING

    E-Print Network [OSTI]

    Karlsson, Brynjar

    AN EARLY WARNING SYSTEM FOR AMBIENT ASSISTED LIVING June 2012 Andrea Monacchi Master of Science in Computer Science #12;#12;AN EARLY WARNING SYSTEM FOR AMBIENT ASSISTED LIVING Andrea Monacchi Master ISSN 1670-8539 #12;#12;An Early Warning System for Ambient Assisted Living by Andrea Monacchi Project

  8. Volatile Organic Compounds in Untreated Ambient Groundwater of

    E-Print Network [OSTI]

    Volatile Organic Compounds in Untreated Ambient Groundwater of the United States, 1985-1995 P A U L, ambient groundwater of the conterminous United States was conducted based on samples collected from 2948-chloropropane, which had a reporting level of 1.0 µg/L. Because ambient groundwater was targeted, areas of known

  9. Aerosol collection characteristics of ambient aerosol samplers

    E-Print Network [OSTI]

    Ortiz, Carlos A

    1978-01-01T23:59:59.000Z

    are contained in Appendix C. Dichotomous Sam ler The basic principle of operation of the dichotomous, Figure 9, is that aerosol particles are passed through an acceleration nozzle where the particle velocity is increased to a speed V. at the nozzle exit... AEROSOL COLLECTION CHARACTERISTICS OF AMBIENT AEROSOL SAMPLERS A Thesis by CARLOS A. ORTIZ Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December 1978...

  10. Electric Power From Ambient Energy Sources

    SciTech Connect (OSTI)

    DeSteese, John G.; Hammerstrom, Donald J.; Schienbein, Lawrence A.

    2000-10-03T23:59:59.000Z

    This report summarizes research on opportunities to produce electric power from ambient sources as an alternative to using portable battery packs or hydrocarbon-fueled systems in remote areas. The work was an activity in the Advanced Concepts Project conducted by Pacific Northwest National Laboratory (PNNL) for the Office of Research and Development in the U.S. Department of Energy Office of Nonproliferation and National Security.

  11. Electric utility response to the Clean Air Act Amendments

    SciTech Connect (OSTI)

    Torrens, I.M.; Platt, J.B. [Electric Power Research Inst., Palo Alto, CA (United States)

    1994-01-01T23:59:59.000Z

    This article describes the actions and planning by electric utilities to meet regulations on nitrogen oxide and sulfur dioxide emissions. The topics of the article include sulfur dioxide response and options, the fuel, technology and allowance interplay, nitrogen oxides control, continuous emission monitors, air toxics, clean air response tool kit, and the economics of compliance.

  12. Improving Compressed Air System Efficiency- Know What You Really Need

    E-Print Network [OSTI]

    Terrell, R. E.

    ($17,000/year saved) by reducing air use without reducing production. Another, by monitoring air production and energy requirements of the system, selected a properly sized 75 hp compressor to replace a worn-out 250 hp compressor and paid for the new...

  13. Automatic Continuous Commissioning of Measurement Instruments in Air Handling Units 

    E-Print Network [OSTI]

    Xiao, F.; Wang, S.

    2006-01-01T23:59:59.000Z

    component analysis (PCA), is adopted and modified to monitor the air handling process. Two PCA models are built corresponding to the heat balance and pressure-flow balance of the air-handling process. Sensor faults can be detected and isolated using the Q...

  14. Cold Vacuum Drying Facility Stack Air Sampling System Qualification Tests

    SciTech Connect (OSTI)

    Glissmeyer, John A.

    2001-01-24T23:59:59.000Z

    This report documents tests that were conducted to verify that the air monitoring system for the Cold Vacuum Drying Facility ventilation exhaust stack meets the applicable regulatory criteria regarding the placement of the air sampling probe, sample transport, and stack flow measurement accuracy.

  15. absorption gpa air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    absorption gpa air First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Monitoring Air Moisture with Laser...

  16. On-road evaluation of advanced hybrid electric vehicles over a wide range of ambient temperatures.

    SciTech Connect (OSTI)

    Carlson, R.; Duoba, M. J.; Bocci, D.; Lohse-Busch, H. (Energy Systems)

    2007-01-01T23:59:59.000Z

    In recent years, Hybrid Electric Vehicles (HEV's) have become a production viable and effective mode of efficient transportation. HEV's can provide increased fuel economy over convention technology vehicle, but these advantages can be affected dramatically by wide variations in operating temperatures. The majority of data measured for benchmarking HEV technologies is generated from ambient test cell temperatures at 22 C. To investigate cold and hot temperature affects on HEV operation and efficiency, an on-road evaluation protocol is defined and conducted over a six month study at widely varying temperatures. Two test vehicles, the 2007 Toyota Camry HEV and 2005 Ford Escape HEV, were driven on a pre-defined urban driving route in ambient temperatures ranging from -14 C to 31 C. Results from the on-road evaluation were also compared and correlated to dynamometer testing of the same drive cycle. Results from this on-road evaluation show the battery power control limits and engine operation dramatically change with temperature. These changes decrease fuel economy by more than two times at -14 C as compared to 25 C. The two vehicles control battery temperature in different manners. The Escape HEV uses the air conditioning system to provide cool air to the batteries at high temperatures and is therefore able to maintain battery temperature to less than 33 C. The Camry HEV uses cabin air to cool the batteries. The observed maximum battery temperature was 44 C.

  17. Feasibility of air capture

    E-Print Network [OSTI]

    Ranjan, Manya

    2010-01-01T23:59:59.000Z

    Capturing CO2 from air, referred to as Air Capture, is being proposed as a viable climate change mitigation technology. The two major benefits of air capture, reported in literature, are that it allows us to reduce the ...

  18. Moving air for comfort

    E-Print Network [OSTI]

    Arens, Edward; Turner, Stephen; Zhang, Hui; Paliaga, Gwelen

    2009-01-01T23:59:59.000Z

    Brager, L. Zagreus. 2007, “Air movement preferences observed709-731. 9. Toftum, J. 2004. “Air movement – good or bad? ”Indoor Air 14, pp 40-45. 10. Gong, N. , K. Tham, A. Melikov,

  19. Monitoring well

    DOE Patents [OSTI]

    Hubbell, Joel M. (Idaho Falls, ID); Sisson, James B. (Idaho Falls, ID)

    1999-01-01T23:59:59.000Z

    A monitoring well including a conduit defining a passageway, the conduit having a proximal and opposite, distal end; a coupler connected in fluid flowing relationship with the passageway; and a porous housing borne by the coupler and connected in fluid flowing relation thereto.

  20. Monitoring well

    DOE Patents [OSTI]

    Hubbell, J.M.; Sisson, J.B.

    1999-06-29T23:59:59.000Z

    A monitoring well is described which includes: a conduit defining a passageway, the conduit having a proximal and opposite, distal end; a coupler connected in fluid flowing relationship with the passageway; and a porous housing borne by the coupler and connected in fluid flowing relation thereto. 8 figs.

  1. Stack Monitor Operating Experience Review

    SciTech Connect (OSTI)

    L. C. Cadwallader; S. A. Bruyere

    2009-05-01T23:59:59.000Z

    Stack monitors are used to sense radioactive particulates and gases in effluent air being vented from rooms of nuclear facilities. These monitors record the levels and types of effluents to the environment. This paper presents the results of a stack monitor operating experience review of the U.S. Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS) database records from the past 18 years. Regulations regarding these monitors are briefly described. Operating experiences reported by the U.S. DOE and in engineering literature sources were reviewed to determine the strengths and weaknesses of these monitors. Electrical faults, radiation instrumentation faults, and human errors are the three leading causes of failures. A representative “all modes” failure rate is 1E-04/hr. Repair time estimates vary from an average repair time of 17.5 hours (with spare parts on hand) to 160 hours (without spare parts on hand). These data should support the use of stack monitors in any nuclear facility, including the National Ignition Facility and the international ITER project.

  2. Air Quality 4 4-1 2003 SITE ENVIRONMENTAL REPORT

    E-Print Network [OSTI]

    Homes, Christopher C.

    at the Central Steam Facility. 4.1 RADIOLOGICAL EMISSIONS Federal air quality laws and DOE regulations monitoring is conducted. Figure 4-1 indicates the locations of the monitored facilities for radiological emis radioactive and nonradioactive emissions at several facilities on site to ensure compliance

  3. Primary zone air proportioner

    DOE Patents [OSTI]

    Cleary, Edward N. G. (San Diego, CA)

    1982-10-12T23:59:59.000Z

    An air proportioner is provided for a liquid hydrocarbon fueled gas turbine of the type which is convertible to oil gas fuel and to coal gas fuel. The turbine includes a shell for enclosing the turbine, an air duct for venting air in said shell to a gasifier, and a fuel injector for injecting gasified fuel into the turbine. The air proportioner comprises a second air duct for venting air from the air duct for mixing with fuel from the gasifier. The air can be directly injected into the gas combustion basket along with the fuel from the injector or premixed with fuel from the gasifier prior to injection by the fuel injector.

  4. The King's College London HEI project Health, Environment and Reducing air pollution in London, combating cardio-respiratory illness,

    E-Print Network [OSTI]

    Applebaum, David

    The King's College London HEI project ­ Health, Environment and Innovation Reducing air pollution & partners London suffers with the worst air pollution in the UK and some of poorest in Europe. Poor air of monitors to detect changes in London's air pollution levels. Having won the contract to operate the LEZ

  5. Field validation of monitoring method for ditertiary butylperoxide (DTBP) 

    E-Print Network [OSTI]

    Stansbury, Anna Michelle

    1997-01-01T23:59:59.000Z

    In this field study, a new air monitoring method, developed in the laboratory for measuring occupational exposure to ditertiary butylperoxide (DTBP) was validated by testing the overall accuracy and precision of the technique ...

  6. A Battery-Free Tag for Wireless Monitoring of Heart Sounds

    E-Print Network [OSTI]

    Sarpeshkar, Rahul

    A Battery-Free Tag for Wireless Monitoring of Heart Sounds Soumyajit Mandal, Lorenzo Turicchia that monitors heart sounds. The tag powers up by harvesting ambient RF energy, and contains a low measure heart rate at distances up to 7m from an FCC-compliant RF power source. We also suggest how delays

  7. NRC TLD Direct Radiation Monitoring Network. Progress report, October--December 1996

    SciTech Connect (OSTI)

    Struckmeyer, R.

    1997-03-01T23:59:59.000Z

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1996. It provides the ambient radiation levels measured in the vicinity of 74 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program. 3 figs., 4 tabs.

  8. NRC TLD Direct Radiation Monitoring Network progress report, October--December 1994. Volume 14, No. 4

    SciTech Connect (OSTI)

    Struckmeyer, R.

    1995-03-01T23:59:59.000Z

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1994. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program.

  9. Site Monitoring Area Maps

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    to the Site Monitoring Area (SMA) The Site Monitoring Area sampler Control measures (best management practices) installed at the Site Monitoring Area Structures such as...

  10. Tritium monitor

    DOE Patents [OSTI]

    Chastagner, Philippe (Augusta, GA)

    1994-01-01T23:59:59.000Z

    A system for continuously monitoring the concentration of tritium in an aqueous stream. The system pumps a sample of the stream to magnesium-filled combustion tube which reduces the sample to extract hydrogen gas. The hydrogen gas is then sent to an isotope separation device where it is separated into two groups of isotopes: a first group of isotopes containing concentrations of deuterium and tritium, and a second group of isotopes having substantially no deuterium and tritium. The first group of isotopes containing concentrations of deuterium and tritium is then passed through a tritium detector that produces an output proportional to the concentration of tritium detected. Preferably, the detection system also includes the necessary automation and data collection equipment and instrumentation for continuously monitoring an aqueous stream.

  11. Tritium monitor

    DOE Patents [OSTI]

    Chastagner, P.

    1994-06-14T23:59:59.000Z

    A system is described for continuously monitoring the concentration of tritium in an aqueous stream. The system pumps a sample of the stream to magnesium-filled combustion tube which reduces the sample to extract hydrogen gas. The hydrogen gas is then sent to an isotope separation device where it is separated into two groups of isotopes: a first group of isotopes containing concentrations of deuterium and tritium, and a second group of isotopes having substantially no deuterium and tritium. The first group of isotopes containing concentrations of deuterium and tritium is then passed through a tritium detector that produces an output proportional to the concentration of tritium detected. Preferably, the detection system also includes the necessary automation and data collection equipment and instrumentation for continuously monitoring an aqueous stream. 1 fig.

  12. AiR surface: AiR surface 1

    E-Print Network [OSTI]

    Tanaka, Jiro

    AiR surface: 1 PDA AiR surface 1 1: AiR surface () () 2 [1] [2] 3 AiR surface AiR surface surface surface surface 3.1 surface [3]( 3 ) surface 3.2 surface surface AiR surface 4 AiR surface surface AiR surface: Virtual Touch Panel

  13. Air Pollution Spring 2010

    E-Print Network [OSTI]

    ATS 555 Air Pollution Spring 2010 T Th 11:00 ­ 12:15, NESB 101 Instructor: Prof. Sonia Kreidenweis an understanding of types and sources of air pollution. 2. Examine concentrations of air pollutants and their effects on health and welfare. Review regulations governing air pollution. 3. Examine the meteorological

  14. Trama Tecno Ambiental | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <MaintainedInformationThePtyTownTrama Tecno Ambiental Jump to:

  15. MDL Ambiente Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |JilinLu an Group Jump to: navigation,LushuiLyme,MDL Ambiente Ltd Jump

  16. Ambient Hydro Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat Place:Alvan Blanch Green FuelsEnergyAmandus KahlAmbient Hydro

  17. 4.0 IMPACTS OF THE PROPOSED ACTION AND ALTERNATIVES

    Broader source: Energy.gov (indexed) [DOE]

    Air Quality Control Region (AQCR). The region is under authority of the Regional Air Pollution Control Agency (RAPCA), which monitors ambient levels of criteria...

  18. Routine Radiological Environmental Monitoring Plan, Volume 2 Appendices

    SciTech Connect (OSTI)

    Bechtel Nevada

    1998-12-31T23:59:59.000Z

    Supporting material for the plan includes: QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR NTS AIR; QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR WATER ON AND OFF THE NEVADA TEST SITE; QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR NTS BIOTA; QUALITY ASSURANCE, ANALYSIS, AND SAMPLING PLAN FOR DIRECT RADIATION MONITORING; DATA QUALITY OBJECTIVES PROCESS; VADOSE ZONE MONITORING PLAN CHECKLIST.

  19. Observation of neutral sulfuric acid-amine containing clusters in laboratory and ambient measurements

    SciTech Connect (OSTI)

    Kuang C.; Zhao, J.; Smith, J. N.; Eisele, F. L.; Chen, M.; McMurry, P. H.

    2011-11-02T23:59:59.000Z

    Recent ab initio calculations showed that amines can enhance atmospheric sulfuric acid-water nucleation more effectively than ammonia, and this prediction has been substantiated in laboratory measurements. Laboratory studies have also shown that amines can effectively displace ammonia in several types of ammonium clusters. However, the roles of amines in cluster formation and growth at a microscopic molecular scale (from molecular sizes up to 2 nm) have not yet been well understood. Processes that must be understood include the incorporation of amines into sulfuric acid clusters and the formation of organic salts in freshly nucleated particles, which contributes significantly to particle growth rates. We report the first laboratory and ambient measurements of neutral sulfuric acid-amine clusters using the Cluster CIMS, a recently-developed mass spectrometer designed for measuring neutral clusters formed in the atmosphere during nucleation. An experimental technique, which we refer to as Semi-Ambient Signal Amplification (SASA), was employed. Sulfuric acid was added to ambient air, and the concentrations and composition of clusters in this mixture were analyzed by the Cluster CIMS. This experimental approach led to significantly higher cluster concentrations than are normally found in ambient air, thereby increasing signal-to-noise levels and allowing us to study reactions between gas phase species in ambient air and sulfuric acid containing clusters. Mass peaks corresponding to clusters containing four H{sub 2}SO{sub 4} molecules and one amine molecule were clearly observed, with the most abundant sulfuric acid-amine clusters being those containing a C2- or C4-amine (i.e. amines with masses of 45 and 73 amu). Evidence for C3- and C5-amines (i.e. amines with masses of 59 and 87 amu) was also found, but their correlation with sulfuric acid tetramer was not as strong as was observed for the C2- and C4-amines. The formation mechanisms for those sulfuric acid-amine clusters were investigated by varying the residence time in the inlet. It was concluded that the amines react directly with neutral clusters and that ion-induced clustering of sulfuric acid cluster ions with amines was not a dominant process. Results from ambient measurements using the Cluster CIMS without addition of sulfuric acid have shown that the sulfuric acid-amine clusters were reasonably well correlated with sulfuric acid tetramer and consistent with the SASA experiments at the same Boulder sampling site. Also, clusters that contain C2- or C4-amines were more abundant and better correlated with sulfuric acid tetramer than other types of amine containing clusters. However, ambient measurements of sulfuric acid-amine clusters remain difficult and highly uncertain because their concentrations are only slightly above background levels, even during nucleation events.

  20. COMPANHIA AMBIENTAL DO ESTADO DE SO PAULO ANEXO NICO

    E-Print Network [OSTI]

    Jardim, Wilson de Figueiredo

    DE IMPACTO AMBIENTAL (de que tratam, respectivamente, o § 3º do artigo 4º (RAP) e o § 1º do artigo 6º;Apresentação A Avaliação de Impacto Ambiental é uma ferramenta poderosa para antecipar e prevenir os efeitos realizada pelos técnicos dos órgãos ambientais. Nesse sentido, a Diretoria de Avaliação de Impacto Ambiental

  1. ambient high temperature: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    between 25C and 27C. The types of modules 3 Terminology Poikilotherms body temperature ambient Environmental Sciences and Ecology Websites Summary: heat production, Q ...

  2. ambient ocean noise: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    of anisotropy in oceanic ambient noise fields and its relevance to Acoustic Daylight imaging CiteSeer Summary: Acoustic Daylight is a new technique for creating pictorial...

  3. ambient igf leading: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    system concept for the living assistance domain based on ambient intelligence technology and discuss the resulting challenges for the software engineering discipline....

  4. ambient seismic noise: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    sources may Gerstoft, Peter 38 Testing Community Velocity Models for Southern California Using the Ambient Seismic Field Geosciences Websites Summary: to determine...

  5. ambient aerosol concentrations: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    soluble in water: 2. Isolation of acid, neutral, and basic fractions by modified size Weber, Rodney 4 Ambient aerosol sampling using the Aerodyne Aerosol Mass Spectrometer...

  6. ambient fine aerosols: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    soluble in water: 2. Isolation of acid, neutral, and basic fractions by modified size Weber, Rodney 4 Chemical characterization of the ambient organic aerosol soluble in water:...

  7. ambient water toxicity: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    soluble in water: 2. Isolation of acid, neutral, and basic fractions by modified size Weber, Rodney 4 Censored Regression Trend Analyses for Ambient Water Quality Data...

  8. ambient ultrafine aerosols: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    soluble in water: 2. Isolation of acid, neutral, and basic fractions by modified size Weber, Rodney 4 Ambient aerosol sampling using the Aerodyne Aerosol Mass Spectrometer...

  9. ambiental por compostos: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de cdigo aberto baseado (more) Adriano da Silva Ferreira; 2013-01-01 17 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  10. ambiente protegido sobre: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Introduo 18 Informaes gerais sobre o munic-pio de Nova 6 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  11. ambiente termoneutro dos: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dos resduos da (more) Guimares, Gustavo Costa 2007-01-01 10 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  12. ambiental dos estudios: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dos resduos da (more) Guimares, Gustavo Costa 2007-01-01 17 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  13. ambiental por centelleo: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de cdigo aberto baseado (more) Adriano da Silva Ferreira; 2013-01-01 8 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  14. ambientes internos hospitalares: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Universitrio de Nova Friburgo previnindo, educando e Souza, Max O. 18 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  15. ambiental institucionalizada actos: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2 Maestr-a en Ciencias de la Computacin 1 Vsquez, Carlos 19 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  16. ambiental causada por: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de cdigo aberto baseado (more) Adriano da Silva Ferreira; 2013-01-01 22 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  17. ambiental por vapores: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de cdigo aberto baseado (more) Adriano da Silva Ferreira; 2013-01-01 13 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  18. ambiental na costa: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    CA 2 Contra Costa County, Martinez, CA WETLAND RESTORATION OPPORTUNITIES 25 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  19. ambientes globalizados um: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    operando em Bateladas (more) Gomes, Luciano de Andrade 2008-01-01 13 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  20. ambiental por derramamento: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de cdigo aberto baseado (more) Adriano da Silva Ferreira; 2013-01-01 8 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  1. ambiental como herramienta: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    el tejido inicialmente se form, por lo tanto permite Ehleringer, Jim 18 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  2. al medio ambiente: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Obras Pblicas, Madrid. RESUMEN Entre 2001 y 2003 Espigares, T-scar 30 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  3. ambiental dos recursos: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dos resduos da (more) Guimares, Gustavo Costa 2007-01-01 29 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  4. ambiental dos catadores: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    dos resduos da (more) Guimares, Gustavo Costa 2007-01-01 11 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  5. ambiental por dimensiones: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de cdigo aberto baseado (more) Adriano da Silva Ferreira; 2013-01-01 15 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  6. ambiental integrada em: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    de fluxo com (more) Silva, Janana da Conceio Braga 2012-01-01 36 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  7. ambiental por bacillus: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    experiments indicated that Bacillus thuringiensis Selinger, Brent 12 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  8. ambiental del centro: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (Friends of the Clinical Center) Escuela infantil de Bandettini, Peter A. 2 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  9. ambiental das trilhas: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    effektiv, (more) Nimmerrichter, Clemens Wolfgang 2010-01-01 8 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  10. ambiental das atividades: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    DE SERGIPE E SUL DO ESTADO DO ALAGOAS. Open Access Theses and Dissertations Summary: ??O impacto ambiental causado por leo, esgotamento sanitrio, industrial,minerao,...

  11. acondicionamento ambiente sobre: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Introduo 18 Informaes gerais sobre o munic-pio de Nova 6 EVALUACIN DEL IMPACTO AMBIENTAL Environmental Sciences and Ecology Websites Summary: EVALUACI?N DEL...

  12. ambient dissolved metal: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    These include corrosion and oxidation resistant coatings,1 preparation of materials by self-propagating- fusion can take place during deposition, under ambient con- ditions, and...

  13. Atmosphere as Culture: Ambient Media and Postindustrial Japan

    E-Print Network [OSTI]

    Roquet, Paul

    2012-01-01T23:59:59.000Z

    of publication (2008) as the “Electronica/Drone Era,” wheremusic follows the emergent Electronica scene out of the clublater marketed as ‘Electronica. ’ The ambient scene followed

  14. Effects of Ambient Density and Temperature on Soot Formation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Density and Temperature on Soot Formation under High-EGR Conditions Effects of Ambient Density and Temperature on Soot Formation under High-EGR Conditions Presentation given at...

  15. Clean Air Interstate Rule (released in AEO2009)

    Reports and Publications (EIA)

    2009-01-01T23:59:59.000Z

    Clean Air Interstate Rule (CAIR) is a cap-and-trade program promulgated by the Environmental Protection Agency in 2005, covering 28 eastern U.S. states and the District of Columbia. It was designed to reduce sulfur dioxide (SO2) and nitrogen oxide (NOx) emissions in order to help states meet their National Ambient Air Quality Standards (NAAQS) for ozone and particulate matter (PM2.5) and to further emissions reductions already achieved through the Acid Rain Program and the NOx State Implementation Plan call program. The rule was set to commence in 2009 for seasonal and annual NOx emissions and in 2010 for SO2 emissions.

  16. Air/Superfund national technical guidance study series. Development of example procedures for evaluating the air impacts of soil excavation associated with Superfund remedial actions. Final report

    SciTech Connect (OSTI)

    Saunders, G.L.

    1990-07-01T23:59:59.000Z

    The purpose of the project was to identify and define the computation requirements or estimating the air impacts from the remediation of Superfund sites. Two example sites employing soil excavation were selected because they represent a complex emission source. The procedures for the evaluation of the ambient impacts were divided into several subtasks. These included site characterization, selection of remedial alternatives, definition of remedial activities, estimation of emission rates for each remedial activity, determination of ambient concentrations from dispersion modeling, and evaluation of carcinogenic and noncarcinogenic risks based on dispersion modeling results. The calculation of emission rates were used to estimate ambient impacts through dispersion models. The purpose was to outline a set of procedures that could be used, with existing tools, to assist in the evaluation of air-pathway effects.

  17. air temperature air: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    air temperatures... conditions. The design of this study was based on the relation- ship of four parameters: air temperature, air velocity, radiant heat, and globe...

  18. Ambient-pressure silica aerogel films

    SciTech Connect (OSTI)

    Prakash, S.S. [New Mexico Univ., Albuquerque, NM (United States); Brinker, C.J. [New Mexico Univ., Albuquerque, NM (United States)]|[Sandia National Labs., Albuquerque, NM (United States); Hurd, A.J. [Sandia National Labs., Albuquerque, NM (United States)

    1994-12-31T23:59:59.000Z

    Very highly porous (aerogel) silica films with refractive index in the range 1.006--1.05 (equivalent porosity 98.5--88%) were prepared by an ambient-pressure process. It was shown earlier using in situ ellipsometric imaging that the high porosity of these films was mainly attributable to the dilation or `springback` of the film during the final stage of drying. This finding was irrefutably reconfirmed by visually observing a `springback` of >500% using environmental scanning electron microscopy (ESEM). Ellipsometry and ESEM also established the near cent per cent reversibility of aerogel film deformation during solvent intake and drying. Film thickness profile measurements (near the drying line) for the aerogel, xerogel and pure solvent cases are presented from imaging ellipsometry. The thickness of these films (crack-free) were controlled in the range 0.1-3.5 {mu}m independent of refractive index.

  19. Undulator Hall Air Temperature Fault Scenarios

    SciTech Connect (OSTI)

    Sevilla, J.; Welch, J.; /SLAC; ,

    2010-11-17T23:59:59.000Z

    Recent experience indicates that the LCLS undulator segments must not, at any time following tuning, be allowed to change temperature by more than about {+-}2.5 C or the magnetic center will irreversibly shift outside of acceptable tolerances. This vulnerability raises a concern that under fault conditions the ambient temperature in the Undulator Hall might go outside of the safe range and potentially could require removal and retuning of all the segments. In this note we estimate changes that can be expected in the Undulator Hall air temperature for three fault scenarios: (1) System-wide power failure; (2) Heating Ventilation and Air Conditioning (HVAC) system shutdown; and (3) HVAC system temperature regulation fault. We find that for either a system-wide power failure or an HVAC system shutdown (with the technical equipment left on), the short-term temperature changes of the air would be modest due to the ability of the walls and floor to act as a heat ballast. No action would be needed to protect the undulator system in the event of a system-wide power failure. Some action to adjust the heat balance, in the case of the HVAC power failure with the equipment left on, might be desirable but is not required. On the other hand, a temperature regulation failure of the HVAC system can quickly cause large excursions in air temperature and prompt action would be required to avoid damage to the undulator system.

  20. The effects of outdoor heat exchanger hydrophobic treatment on the performance of an air source heat pump

    E-Print Network [OSTI]

    Parker, Brandon DeWayne

    1995-01-01T23:59:59.000Z

    mode, the system must remove heat from the cold outdoor air and provide it to the conditioned space. To remove the heat from the outdoor air, the refrigerant entering the outdoor heat exchanger must be colder than the outdoor air. The outdoor air... is pulled across the heat exchanger surface by the outdoor fan Hence, the cold liquid refrigerant passing through the evaporator coil receives heat from the outdoor ambient air passing over the coil, causing the refrigerant to vaporize into a cool gas...

  1. General Air Permits (Louisiana)

    Broader source: Energy.gov [DOE]

    Any source, including a temporary source, which emits or has the potential to emit any air contaminant requires an air permit. Facilities with potential emissions less than 5 tons per year of any...

  2. Compressed Air Supply Efficiency 

    E-Print Network [OSTI]

    Joseph, B.

    2004-01-01T23:59:59.000Z

    COMPRESSED AIR SUPPLY EFFICENCY Babu Joseph, Ph.D., P.E. Engineer Southern California Edison Irwindale, CA ABSTRACT This project, under contract from California Energy Commission, developed the CASE (Compressed Air Supply Efficiency...

  3. on man, nature & air pollution

    E-Print Network [OSTI]

    Finlayson-Pitts, Barbara J

    2008-01-01T23:59:59.000Z

    on man, nature & air pollution About three decades ago, itand episodes of air pollution the following summer. Wetthe increase in air pollution. This hypothesis generated

  4. In-Cab Air Quality of Trucks Air Conditioned and Kept in Electrified Truck Stop

    SciTech Connect (OSTI)

    Lee, Doh-Won [Texas Transportation Institute; Zietsman, Josias [Texas Transportation Institute; Farzaneh, Mohamadreza [Texas Transportation Institute; Li, Wen-Whai [University of Texas, El Paso; Olvera, Hector [University of Texas, El Paso; Storey, John Morse [ORNL; Kranendonk, Laura [ORNL

    2009-01-01T23:59:59.000Z

    At night, long-haul truck drivers rest inside the cabins of their vehicles. Therefore, the in-cab air quality while air conditioning (A/C) is being provided can be a great concern to the drivers health. The effect of using different A/C methods [truck's A/C, auxiliary power unit (APU), and truck stop electrification (TSE) unit] on in-cab air quality of a heavy-duty diesel vehicle was investigated at an electrified truck stop in the El Paso, Texas, area. The research team measured the in-cabin and the ambient air quality adjacent to the parked diesel truck as well as emissions from the truck and an APU while it was providing A/C. The measured results were compared and analyzed. On the basis of these results, it was concluded that the TSE unit provided better in-cab air quality while supplying A/C. Furthermore, the truck and APU exhaust emissions were measured, and fuel consumption of the truck (while idling) and the APU (during operation) were compared. The results led to the finding that emissions from the APU were less than those from the truck's engine idling, but the APU consumed more fuel than the engine while providing A/C under given conditions.

  5. Ventilation Air Preconditioning Systems

    E-Print Network [OSTI]

    Khattar, M.; Brandemuehl, M. J.

    1996-01-01T23:59:59.000Z

    simply and cost-effectively with a dual path arrangement that treats and controls the ventilation air independently of the recirculation air. The Electric Power Research Institute (EPRI)--the nonprofit R&D arm of the electric utility industry... particular type of application. EPRI is developing variations of the dual path concept to meet different reeofit and new construction markets. Figure 6. Ventilation Air Conditioner as a Separate Unit EPRVCALMAC System: Separate Unit for Ventilation Air...

  6. Permit compliance monitoring for the power generation industry

    SciTech Connect (OSTI)

    Macak, J.J. III [Mostardi-Platt Associates, Inc., Elmhurst, IL (United States); Platt, T.B. [Commonwealth Edison Company, Waukegan, IL (United States); Miller, S.B. [Commonwealth Edison Company, Chicago, IL (United States)

    1996-12-31T23:59:59.000Z

    The Clean Air Act Amendments (CAAA) of 1990 authorized EPA to develop regulations requiring facilities to monitor the adequacy of emission control equipment and plant operations. Furthermore, under the CAAA, EPA is required to issue regulations to require owners and operators of large industrial facilities to enhance air pollution monitoring and certify compliance with air pollution regulations. The fossil-fueled power generation industry has been targeted with the promulgation of the Acid Rain Program regulations of 40 CFR 72, and the Continuous Emissions Monitoring requirements of 40 CFR 75. The Part 75 regulations, with a few exceptions, establish requirements for monitoring, recordkeeping, and reporting of sulfur dioxide, nitrogen oxides, and carbon dioxide emissions, volumetric flow, and opacity data from affected units under the Acid Rain Program. Depending upon the type of unit and location, other applicable emission limitations may apply for particulate emissions (both total and PM-10), carbon monoxide, volatile organic compounds and sulfuric acid mist.

  7. Parallel ozone monitoring study performed in the Ojai Valley, California

    SciTech Connect (OSTI)

    Mikel, D.K. [Ventura County Air Pollution Control District, CA (United States)

    1998-12-31T23:59:59.000Z

    The Ventura County Air Pollution Control District (also known as the District) Monitoring and Technical Services Division, relocated the State and Local Air Monitoring Station (SLAMS) for the Ojai Valley. The SLAMS was located on property that was being abandoned and sold by the County of Ventura, thus necessitating a station relocation. From August 3, through October 31, 1995, the District performed parallel ozone monitoring at two sites. The former site was located at 1768 Maricopa Road, Ojai, California (AIRS Site 06111-1003) and the existing site at 1201 Ojai Avenue, Ojai California (County Fire Station {number_sign}21). This paper outlines the process of parallel monitoring, the statistical tests used and their justification. In addition, there is a discussion on station equivalency.

  8. MAD-AIR

    E-Print Network [OSTI]

    Tooley, J. J.; Moyer, N. A.

    1989-01-01T23:59:59.000Z

    with stress- related illness rather than the anwr that spells RELIEF. Air flow in, through ad arourd a house is an important concern in the building we call haw. !lb enhance air flow and change the various corditions or properties of the air, a variety...

  9. Air Quality Chapter Outline

    E-Print Network [OSTI]

    Wechsler, Risa H.

    Chapter 30 Air Quality Chapter Outline 1 Overview 2 1.1 Hazards / Impacts 2 1.2 Exposure Sources 3 Manual Chapter 30: Air Quality 7 References 20 8 Implementation 21 9 Ownership 22 1 Overview SLAC operations produce a wide range of air emissions. Sources of emissions include standard equipment

  10. Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles

    E-Print Network [OSTI]

    Xu, K.; Liu, M.; Wang, G.; Wang, Z.

    2007-01-01T23:59:59.000Z

    temperature at supply air temperature setpoint. Mechanical cooling is always required when outside air temperature is higher than the supply air temperature setpoint. Generally the supply air temperature setpoint is set at 55°F for space humidity control...

  11. Polycyclic Aromatic Hydrocarbons (PAHs), nitrated PAHs and oxygenated PAHs in ambient air of the

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    lower. 9- Fluorenone and 9,10-anthraquinone were the most abundant OPAHs, accounting for about 60[a]anthracene-7,12-dione seems to be diesel vehicles. Finally, 9,10-anthraquinone presents a double origin: primary diesel emission and photochemical processes. Formation of 9,10- anthraquinone from anthracene

  12. The urgency of the development of CO2 capture from ambient air

    E-Print Network [OSTI]

    Venkataraman, Latha

    for review June 1, 2011) CO2 capture and storage (CCS) has the potential to develop into an important tool to address climate change. Given society's present reliance on fossil fuels, widespread adoption of CCS appears indispensable for meeting stringent climate targets. We argue that for conventional CCS to become

  13. Ambient air measurements related to traffic : volution of VOCs over three years

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    hours. The major VOC are : benzène and toluène, MTBE, 1,3-butadiene, formaldehyde, phénol, naphtalene, but will not be discussed hère. Aromatic hydrocarbons and MTBE are sampled b

  14. An electron microscopy study of wear in polysilicon microelectromechanical systems in ambient air

    E-Print Network [OSTI]

    Ritchie, Robert

    in bulk silicon, can severely impact the durability and reliability of microelectromechanical system in the multiuser microelectromechanical system process MUMPs foundry and Sandia Ultra-planar, Multi-level MEMS

  15. The Contribution of Motor Vehicles and Other Sources to Ambient Air Pollution

    E-Print Network [OSTI]

    Delucchi, Mark A.; McCubbin, Donald R.

    1996-01-01T23:59:59.000Z

    secondary organic aerosols. bWe assume that the DNi for NH3Dietzmann et al. (1980). bWe run the PART5 model for two

  16. Enhancing Amine-Supported Materials for Ambient Air Capture | Center for

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem NotEnergy,ARMFormsGasReleaseSpeeches Energy Speeches

  17. Reflecting the Revised PM 2.5 National Ambient Air Quality Standard in NEPA

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010InJanuary 29, 2013RedbirdThisEvaluations |

  18. NRC TLD Direct Radiation Monitoring Network. Volume 15, No. 4: Quarterly progress report, October--December 1995

    SciTech Connect (OSTI)

    Struckmeyer, R.

    1996-03-01T23:59:59.000Z

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1995. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program.

  19. Air to Air Communication Protocol Arjan Durresi1

    E-Print Network [OSTI]

    Jain, Raj

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    Broader source: Energy.gov [DOE]

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