||National air quality and emissions trends report, 1990 /
Curran, T. ;
Faoro, R. ;
Fitz-Simons, T. ;
Frank, N. ;
||Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
|| U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Air Quality Planning and Standards,
Emission factors ;
Air pollution ;
United States ;
Urban areas ;
Regional analysis ;
Carbon dioxide ;
Sulfur dioxide ;
Carbon monoxide ;
Nitrogen dioxide ;
Statistical analysis ;
Total suspended particulates ;
National Air Monitoring Sites(NAMS)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||135 pages : illustrations, maps ; 28 cm
The report presents national and regional trends in air quality from 1981 through 1990 for particulate matter, sulfur dioxide, carbon monoxide, nitrogen dioxide, ozone and lead. Air quality trends are also presented for 15 metropolitan areas. Both national and regional trends in each of these pollutants are examined. National air quality trends are also presented for both the National Air Monitoring Sites (NAMS) and other site categories. In addition to ambient air quality, trends are also presented for annual nationwide emissions. These emissions are estimated using the best available engineering calculations; the ambient levels presented are averages of direct measurements. The report also includes a section, Air Quality Levels in Metropolitan Statistical Areas (MSAs). Its purpose is to provide interested members of the air pollution control community, the private sector and the general public with greatly simplified air pollution information. Air quality statistics are presented for each of the pollutants for all MSAs with data in 1990.
"November 1991." "EPA-450/4-91-023." Microfiche.