Main Title |
Acid-Base Status of Pennsylvania Streams: Results from the National Stream Survey. |
Author |
Eshelman, K. N. ;
Kaufmann, P. R. ;
Herlihy, A. T. ;
|
CORP Author |
Corvallis Environmental Research Lab., OR. ;Virginia Univ., Charlottesville. |
Publisher |
1989 |
Year Published |
1989 |
Report Number |
EPA/600/D-89/224; |
Stock Number |
PB90-134313 |
Additional Subjects |
Acidification ;
Streams ;
Water pollution ;
Pennsylvania ;
Mine waters ;
Stream flow ;
Acidity ;
Neutralizing ;
Watersheds ;
Forest land ;
Populations ;
Mine acid drainage
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB90-134313 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
11p |
Abstract |
The National Stream Survey (NSS) conducted by the Environmental Protection Agency in the spring of 1986 sampled 82 stream reaches within the state of Pennsylvania, representing a target population of 9900 stream reaches that are potentially sensitive to acidification. After excluding streams acidified by acid mine drainage, an estimated 9% of the reaches were chronically acidic during spring baseflow at the upstream end while less than 1% of the stream reaches were acidic at their downstream end. Comparable percentages of streams with an acid neutralizing capacity (ANC) between 0 and 50 (mu)eq/L were also identified, with the majority of these streams found in the Appalachian Plateau. Almost all of the chronically acidic streams in the state are small (<20km(2)), upland headwater streams draining watersheds that are more than 95% forested. Population estimates of the percentages of streams with an ANC less than 200 (mu)eq/L agree favorably with estimates by the Pennsylvania Fish Commission for managed and unmanaged stream sections in the state. |
Supplementary Notes |
Proceedings of Acid Deposition Symposium, State College, PA., September 12, 1989. Prepared in cooperation with Virginia Univ., Charlottesville. |
NTIS Title Notes |
Symposium paper. |
Category Codes |
68D; 48G; 48D |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
005317150 |
Origin |
NTIS |
Type |
CAT |