Main Title |
U.S. Visibility Trends, 1960-1992. |
Author |
Husar, R. B. ;
Elkins., J. B. ;
|
CORP Author |
Washington Univ., St. Louis, MO. Center for Air Pollution Impact and Trend Analysis.;Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. |
Publisher |
1994 |
Year Published |
1994 |
Report Number |
EPA/600/A-94/044; |
Stock Number |
PB94-158706 |
Additional Subjects |
United States ;
Haze ;
Visibility ;
Reprint ;
Air pollution monitoring ;
Air pollution sources ;
Regional analysis ;
Atmospheric optics ;
Emission factors ;
Air circulation ;
Seasonal variations ;
Spatial variations ;
Trends ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB94-158706 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
18p |
Abstract |
The U.S. haze patterns and trends since 1960 are presented in 16 haze maps that represent four time periods and four seasons. The selected time periods are 5 year averages centered at 1960, 1970, 1980, and 1990. The quarters are calendrical. The discussion will encompass the overall national pattern and trends. |
Supplementary Notes |
See also AD-A065 509. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards. |
NTIS Title Notes |
Symposium paper. |
Title Annotations |
Reprint: U.S. Visibility Trends, 1960-1992. |
Category Codes |
68A; 55B; 91A; 43F |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
200/04 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
413329928 |
Origin |
NTIS |
Type |
CAT |