||Assessment of human exposures to atmospheric benzene /
Mara, Susan J. ;
Lee., Shonh S.
||SRI International, Menlo Park, Calif.;Environmental Protection Agency, Research Triangle Park, N.C. Office of Air Quality Planning and Standards.
|| Environmental Protection Agency. Office of Air and Waste Management, Office of Air Quality Planning and Standards ; For sale by the National Technical Information Service,
||EPA/450/3-78/031; EPA-68-01-4314; EPA-68-02-2835
Hazardous materials ;
Industrial atmospheres ;
Physical properties ;
Chemical properties ;
Air pollution ;
United States ;
Urban areas ;
Chemical industry ;
Crude oil ;
Toxic substances ;
Environmental health ;
Automobile exhaust ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||206 pages in various pagings : illustrations ; 28 cm.
The report is one in a series that SRI International is providing on a quick-response basis for the U.S. Environmental Protection Agency (EPA). Populations-at-risk to selected pollutants are being quantified for input to other, more inclusive studies. The primary objective of this study was to estimate the environmental exposure of the U.S. population to atmospheric benzene emissions from specific sources. In this estimate it was assumed that individuals residing in the vicinity of benzene sources spend 24 hours of each day in the same location. To estimate more representative exposures, a second objective was added--to make rough estimates of individuals' total exposures by defining total exposure as the sum of exposures to all benzene sources, including those in nonresidential areas, within a designated period.
Contract no. 68-01-4314 and 68-02-2835. June 1978. Includes bibliographical references (pages R1-R7). Microfiche (negative).