Main Title |
Role of Nitrate in the Acidification of Streams in the Catskill Mountains of New York. |
Author |
Murdoch, P. S. ;
Stoddard, J. L. ;
|
CORP Author |
Geological Survey, Albany, NY. ;ManTech Environmental Technology, Inc., Corvallis, OR.;Corvallis Environmental Research Lab., OR.;New York City Dept. of Environmental Protection. |
Publisher |
c1992 |
Year Published |
1992 |
Report Number |
EPA-68-C8-0006; EPA/600/J-93/008; |
Stock Number |
PB93-150167 |
Additional Subjects |
Water pollution sampling ;
Acidification ;
Inorganic nitrates ;
Streams ;
Stream flow ;
Air water interactions ;
Deposition ;
Nitric acid ;
Catskill Mountains ;
New York ;
Surface waters ;
Long term effects ;
Water chemistry ;
Data collection ;
Runoff ;
Biological effects ;
Reprints ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-150167 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
Research on the effects of acidic deposition in the United States has focused largely on the role of sulfur deposition in the acidification of surface waters. Results from both long-term (up to 70 years) and recent monitoring of stream chemistry in the Catskill Mountains of New York indicate, however, that nitric acid has a significant and increasing role in surface water acidification that, during high-flow periods, rivals the role of sulfuric acid. Nitrate increases with increased stream flow throughout the year except during the late summer, when biological activity and its attendant nitrogen uptake are greatest; peak concentrations as high as 128 micrograms/l have been recorded during spring snowmelt. In contrast, sulfate concentrations decrease with increased flow. (Copyright (c) 1992 by the American Geophysical Union.) |