Indoor concentration modeling of aerosol strong acidity

Technical Report · Fri Jan 01 04:00:00 EST 1993

OSTI ID:6475845

Zelenka, M; Waldman, J; Suh, H; Koutrakis, P

A model for estimating indoor concentrations of acid aerosol was applied to data collected during the summer of 1989, in a densely populated location in New Jersey. The model, from a study of a semi-rural community in Pennsylvania, was used to estimate indoor concentrations of aerosol strong acidity (H+) at an elderly care residence in suburban New Jersey. The purpose of the present work is to assess the applicability of the model for predicting H+ exposures in a suburban environment and to evaluate the models performance for daytime and nighttime periods. Indoor and outdoor samples were taken at an elderly care home between June 20 and July 30, 1989. The indoor and outdoor monitoring schedule collected two 12-h samples per day. Samples were taken with the Indoor Denuder Sampler (IDS). Samples were analyzed for indoor and outdoor concentrations of aerosol strong acidity (H+), ammonia (NH3), and anion determination. The model generally underestimated the indoor H+ concentration. Slight improvement was seen in the model estimate of H+ for the nighttime period (7:00 pm to 7:00 am, local time). The model applied to the site in New Jersey did not predict the indoor H+ concentrations as well as it did for the experiment from which it was developed.

• Research Organization: Environmental and Occupational Health Sciences Inst., Piscataway, NJ (United States). Exposure Measurement and Assessment Div.
• OSTI ID: 6475845
• Report Number(s): PB-93-204071/XAB; CNN: EPA-R816740
• Country of Publication: United States
• Language: English

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32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ADULTS
AEROSOLS
AGE GROUPS
AGED ADULTS
AIR POLLUTION
AIR POLLUTION MONITORING
AMMONIA
COLLOIDS
DATA
DATA PROCESSING
DEVELOPED COUNTRIES
DISPERSIONS
ENVIRONMENT
FORECASTING
HYDRIDES
HYDROGEN COMPOUNDS
INDOOR AIR POLLUTION
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MONITORING
NEW JERSEY
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NORTH AMERICA
NUMERICAL DATA
PENNSYLVANIA
PH VALUE
POLLUTION
PROBABILISTIC ESTIMATION
PROCESSING
RURAL AREAS
SAMPLING
SOLS
STATISTICAL DATA
TASK SCHEDULING
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VARIATIONS