Record Display for the EPA National Library Catalog


Main Title Direct/delayed response project : future effects of long-term sulfur deposition on stream chemistry in the Mid-Appalachian Region of the Eastern United States /
Author Church, M. R. ; Shaffer, P. W. ; Thornton, K. W. ; Cassell, D. L. ; Liff, C. I.
Other Authors
Author Title of a Work
Church, M. R.
CORP Author Corvallis Environmental Research Lab., OR. ;ManTech Environmental Technology, Inc., Corvallis, OR. ;FTN Associates, Little Rock, AR. ;Oak Ridge National Lab., TN. ;Pacific Northwest Forest and Range Experiment Station, Corvallis, OR. Forestry Sciences Lab.
Publisher U.S. Environmental Protection Agency, Office of Environmental Processes and Effects Research,
Year Published 1992
Report Number EPA/600/R-92/186
Stock Number PB92-232370
OCLC Number 39457742
Subjects Sulphur deposits--Environmental aspects--East (US) ; Sulphur deposits--Environmental aspects--Appalachian Region
Additional Subjects Water chemistry ; Sulfur ; Water pollution ; Surface waters ; Deposition ; Air water interactions ; Streams ; Lakes ; Watersheds ; Long term effects ; Acidification ; Hydrology ; Statistical analysis ; Mathematical models ; Direct/Delayed Response Project ; Appalachian Mountain Region(United States) ; Eastern Region(United States)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD  EPA 600-R-92-186 AWBERC Library/Cincinnati,OH 07/17/1998
NTIS  PB92-232370 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xxiv, 384 p. : ill. ; 28 cm.
The report clearly indicates the potential for current and future adverse effects of sulfur deposition on stream chemistry in the Mid-Appalachian Region. Results of the work indicate that the Mid-Appalachian Region is in a period of transition. Some watersheds still maintain the ability to retain sulfur and thus buffer (at least temporarily) against continued deposition, whereas others have essentially lost the ability to retain (on a net anual basis) atmospherically deposited sulfur. These latter watersheds appear predominatly in the geographic area that receives the greatest levels of sulfur deposition, thus supporting the hypothesis that high levels of deposition have led to the status of decreased retention. The combined results of the report, when compared to the results of the prior final report on Northeast lakes and streams of the Southern Blue Ridge Province, indicate that the Mid-Appalachian Region is the area of the Eastern United States most likely to be experiencing the most notable increases in the effects of atmospheric sulfur deposition.
"EPA/600/R-92/186." "September 1992." Includes bibliographic references (p.333-354).