Exposure modeling of acid aerosols
The U.S. Environmental Protection Agency (EPA) is conducting field measurements in Philadelphia, Pennsylvania to: (1) characterize the spatial and temporal variations of acid aerosol species in an urban environment, (2) investigate the complex chemistry of acid aerosols and other acidic species, including formation/removal mechanisms, and (3) provide acidic aerosol and particulate data base for exposure modeling and a study of pollution health effects. One of the goals of the EPA's aerosol acidity study is to develop models of human exposure to acid aerosol species. Exposure models will be used to estimate the distribution of human exposures to acid aerosols. The models would be an important planning tool for assessing exposures by: (1) determining acid aerosol exposures in high-risk groups; (2) facilitating planning of subsequent sampling strategies; and (3) evaluating the effectiveness of proposed or implemented mitigation efforts on reducing human exposures to acid aerosols. The paper focuses on issues to be addressed in developing models of human exposure to acid aerosols. The intent is to describe a sampling scheme that provides the information needed for development of an acid aerosol exposure model.
- Research Organization:
- National Oceanic and Atmospheric Administration, Research Triangle Park, NC (United States). Atmospheric Sciences Modeling Div.
- OSTI ID:
- 5919291
- Report Number(s):
- PB-93-228559/XAB; CNN: EPA-R-816740
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
AIR POLLUTION MONITORING
CHEMICAL ANALYSIS
HEALTH HAZARDS
RISK ASSESSMENT
AEROSOLS
AMMONIA
ENVIRONMENTAL EXPOSURE
HYDROGEN IONS
MITIGATION
PENNSYLVANIA
PH VALUE
PROBABILISTIC ESTIMATION
PUBLIC HEALTH
SAMPLING
SPATIAL DISTRIBUTION
URBAN AREAS
US EPA
ATMOSPHERIC PRECIPITATIONS
CHARGED PARTICLES
COLLOIDS
DEVELOPED COUNTRIES
DISPERSIONS
DISTRIBUTION
HAZARDS
HYDRIDES
HYDROGEN COMPOUNDS
IONS
MONITORING
NATIONAL ORGANIZATIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NORTH AMERICA
RAIN
SOLS
US ORGANIZATIONS
USA
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology