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DIRECT/DELAYED RESPONSE PROJECT: FUTURE EFFECTS OF LONG-TERM SULFUR DEPOSITIONS ON STREAM CHEMISTRY IN THE MID-APPALACHIAN REGION OF THE EASTERN UNITED STATES
Citation:
Church, M., P. Shaffer, K. Thornton, D. Cassell, C. Liff, M. Johnson, D. Lammers, J. Lee, G. Holdren, J. Kern, L. Liegel, S. Pierson, D. Stevens, B. Rochelle, AND R. Turner. DIRECT/DELAYED RESPONSE PROJECT: FUTURE EFFECTS OF LONG-TERM SULFUR DEPOSITIONS ON STREAM CHEMISTRY IN THE MID-APPALACHIAN REGION OF THE EASTERN UNITED STATES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-92/186 (NTIS PB92232370), 1991.
Description:
This report clearly indicates the potential for current and future adverse effects of sulfur deposition on stream chemistry in the Mid-Appalachian Region. esults of the work indicate that the id-Appalachian Region is in a period of transition. ome 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 annual basis) atmospherically deposited sulfur. hese latter watersheds appear predominately in the geographic area that receives the greatest levels of sulfur deposition, thus supporting the hypothesis that high levels of deposition have led to this status of decreased retention. he combined results of this 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.