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Title: Ozone Recombination Impact on Conformality.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the ALD 206 held July 24-27, 2016 in Dublin, Ireland.
Country of Publication:
United States

Citation Formats

Goeke, Ronald S. Ozone Recombination Impact on Conformality.. United States: N. p., 2016. Web.
Goeke, Ronald S. Ozone Recombination Impact on Conformality.. United States.
Goeke, Ronald S. 2016. "Ozone Recombination Impact on Conformality.". United States. doi:.
title = {Ozone Recombination Impact on Conformality.},
author = {Goeke, Ronald S.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 7

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  • A comparison of primal and dual methods for measuring the impact of ozone on the profits and outputs of Illinois cash grain farms uses the sample data in Mjelde et al. after adding an additional year of data and making refinements. On the basis of the evidence presented, it is not possible to say definitively whether the production or profit function specification is superior. Both models seem to fit the data well and give plausible results in terms of indicating if an effect is present. While ozone has been shown to be deleterious to an individual farmer, however, this doesmore » not imply that reductions in ozone levels throughout the nation would lead to increased farmer profits. It could lead to an increase in supply, which would likely cause a decrease in price. Other factors highly correlated with ozone could also be responsible for the observed effect. 7 references, 1 table.« less
  • Two-year old sugar maple seedlings were exposed to charcoal-filtered air (CFA) and to three multiples (1x, 1.5x or 3x) of the ambient ozone (O[sub 3]) concentrations during the summers of 1991 and 1992. The saddled prominent (Heterocampa guttivitta Walker) was reared on leaves sampled from CFA and fumigated plants. Developmental cues such as pupal weight, survival rate, egg production and larval developmental time were measured and compared among CFA and 0, treatments. In 1991, larvae reared on the CFA foliage developed significantly lighter pupal weights than those reared on 1x and 3x (306mg vs 355mg and 353mg); the other variablesmore » were not affected by the treatments. A similar trend was observed in 1992 although pupal weights did not significantly differ among CFA and O[sub 3] fumigations. These results indicate that this lepidopteran can respond to biochemical changes induced by abiotic stresses such as ozone.« less
  • Depletion of stratospheric ozone is expected to lead to an increase in the amount of UV-B radiation present in sunlight. In addition to its well known ability to cause skin cancer, UV-B radiation has been shown to alter the immune system. The immune system is the body's primary defense mechanism against infectious diseases and protects against the development of certain types of cancer. Any impairment of immune function may jeopardize health by increasing susceptibility to infectious diseases, increasing the severity of infections, or delaying recovery for infections. In addition, impaired immune function can increase the incidence of certain cancers, particularlymore » cancers of the skin. Research carried out with laboratory animals over the past 15 years has demonstrated that exposure of the skin to UV-B radiation can suppress certain types of immune responses. These include rejection of UV-induced skin cancers and melanomas, contact allergy reactions to chemicals, delayed-type hypersensitivity responses to microbial and other antigens, and phagocytosis and elimination of certain bacteria from lymphoid tissues. Recent studies with mycobacterial infection of mice demonstrated that exposure to UV-B radiation decreased the delayed hypersensitivity response to mycobacterial antigens and increased the severity of infection. In humans, UV-B radiation has also been shown to impair the contact allergy response. These studies demonstrate that UV radiation can decrease immune responses in humans and laboratory and raise the possibility that increased exposure to UV-B radiation could adversely affect human health by increasing the incidence or severity of certain infectious diseases.« less
  • Three-year-old sugar maple seedlings were set in 9 open-top field chambers in the spring of 1992 and 1993. Three ozone concentrations were generated: charcoal-filtered ambient air (OX), ambient air concentration (1X) and 3 times ambient air concentration (3X). The aim of this study was to assess the indirect effects of sugar maple leaves exposed to different ozone concentrations on the biological performance and feeding preference of the forest tent caterpillar (Malacosoma disstria Hbn.). In 1992, the larvae reared on 1X foliage developed faster than those on 3X. In 1993, the individuals reared on 3X developed faster than those on OX,more » Larval survival rates in 1992 and 1993 were not affected by ozone treatments. Ozone concentrations did not influence male and female pupal weights in 1992 but they did for males in 1993 whereby insects reared on the control were larger than 1X. Finally, 4th and 5th instar larvae showed a feeding preference for 3X foliage only in 1993. These results suggest that the forest tent caterpillar response to ozone is subject to yearly variation and ozone concentration.« less
  • The National Ambient Air Quality Standard for ozone is presently being revised by the U.S. Environmental Protection Agency. It appears likely that the revised standard will be for the daily-maximum 8-hour ozone concentration. The form and the level of the standard, which directly determine the stringency of the standard, are still being developed. To study the impact of an 8-hour based standard on VOC and NO{sub x} controls in Southern California, we established a matrix of control scenarios for the August 26-28, 1987 episode observed during the Southern California Air Quality Study, using more realistic input information and the Urbanmore » Airshed Model with improved transport and chemistry algorithms. The matrix is based on uniform anthropogenic emission controls. The 8-hour peak positions tend to be significantly displaced from the 1-hour peak positions while the mid-times of occurrence of the 8-hour and 1-hour peaks are comparable. There are no major changes in the emission control requirements for a reduction of peak ozone from the episode level to 120 ppb in the 1-hour case and to 90 ppb in the 8-hour case. Reduction in afternoon episodic ambient temperatures by 5 percent shifts the peak ozone levels downward by some 20 ppb but there is little impact on emission control requirements. Parameters used in observation-based models such as O{sub 3}/NO{sub y} are not sufficiently sensitive to separate the VOC-control region from the NO{sub x}-control region for both 1-hour and 8-hour concentrations.« less