Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Improved mobile source exposure estimation /
Author Ingalls, Melvin N.
CORP Author Southwest Research Inst., San Antonio, TX.;Environmental Protection Agency, Ann Arbor, MI. Emission Control Technology Div.
Publisher GPO,
Year Published 1985
Report Number EPA/460/3-85/002; EPA-68-03-3162
Stock Number PB85-248441
Subjects Automobiles--Motors--Exhaust gas--United States. ; Carbon monoxide--Measurement. ; Air--Pollution--Measurement
Additional Subjects Exhaust emissions ; Motor vehicles ; Air pollution ; Public health ; Carbon monoxide ; Exposure ; Computer program ; Concentration(Composition) ; Sources ; Regional planning ; Urban areas ; Garages ; Streets ; Roads ; Toxic substances ; Emission factors
Library Call Number Additional Info Location Last
NTIS  PB85-248441 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation xii, 200 pages : illustrations
The project was conducted to provide an improved estimate of nationwide annual person hours of exposure to non-reactive mobile source pollutants. National population estimates by hour of the day were developed using the population activity files for six neighborhood types from the EPA NAAQS Exposure Model (NEM) for CO, with the addition of three mobile source microenvironments (street canyons, tunnels and parking garages). The NEM neighborhood populations together with the mobile source microenvironment populations constitute a complete hour-by-hour assignment of the nationwide population to a set of location types. Mobile source pollutant concentrations for the six NEM neighborhoods were derived from 1981 CO monitor data contained in the EPA SAROAD data base. Mobile source pollutant concentrations for the three mobile source microenvironments were derived for data in the literature. A computer program was written to combine the population and pollutant concentration distributions by hour of the day to produce an annual person hours of exposure distribution of mobile source pollutants. If the mobile source emission rate of a pollutant is known, the information in the report can be used to determine the person hours of exposure to various concentrations of that pollutant.
"EPA/460/3-85/002." "March 1985." "Contract No. 68-03-3162 Work Assignment 6." Microfiche.