| Main Title |
Historical visibility over the eastern U.S. : daily and quarterly extinction coefficient contour maps / |
| Author |
Patterson, D. E. ;
Holloway, Janet M. ;
Husar, Rudolph
|
| Other Authors |
|
| CORP Author |
Washington Univ., St. Louis, MO.;Environmental Sciences Research Lab., Research Triangle Park, NC. |
| Publisher |
U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory, |
| Year Published |
1980 |
| Report Number |
EPA/600/3-80/043A; EPA-R-803896 |
| Stock Number |
PB81-196974 |
| Additional Subjects |
Air pollution ;
Visibility ;
Trends ;
Seasonal variations ;
Sites ;
Graphs(Charts) ;
Concentration(Composition) ;
Eastern Region(United States) ;
Air pollution sampling ;
NTISEPAORD
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB81-196974 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
116 pages ; 28 cm |
| Abstract |
The changes and causes of reduced visibility in the Eastern U.S. during the past three decades were examined. Contour maps of local midday extinction coefficients (inversely related to visibility) are presented. Daily mean extinction coefficient maps illustrate the formation and movement of air masses with reduced visibility; they are supplemented by tables and stripcharts of regional meteorological parameters. Plots of quarterly average extinction coefficients illustrate the long term seasonal and spatial trends of visibility. |
| Notes |
EPA 600/3-80-043a. May 1980. Microfiche. |
