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RECORD NUMBER: 441 OF 814

Main Title Lake Resources at Risk to Acidic Deposition in the Upper Midwest.
Author Schnoor, J. L. ; Nikolaidis, N. P. ; Glass, G. E. ;
CORP Author Environmental Research Lab.-Duluth, MN. ;Iowa Univ., Iowa City.
Publisher c1986
Year Published 1986
Report Number EPA/600/J-86/521;
Stock Number PB90-142944
Additional Subjects Acidification ; Lakes ; Streams ; Water pollution ; Environmental impacts ; Mathematical models ; Deposition ; Kinetics ; Weathering ; Watersheds ; Wisconsin ; Bed load ; Rocks ; Granite ; Cations ; Lake Clara ; Neutralizing ; Water chemistry ; Lake McNearney ; Michigan ; Acid precipitation
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NTIS  PB90-142944 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
Abstract The acidification of lakes and streams as a result of acid precipitation has been documented in southern Sweden and Norway, the northeastern United States, and southern Ontario. Simple and complex models have been used to assess the impact of acidic deposition on lakes and streams. One model development (the Trickle-down model) places particular emphasis on the kinetics of chemical weathering in the watershed as the primary mechanism that produces cations (Ca(+2), Mg(+2), K(+), Na(+)) and neutralizes acid inputs. In the study the Trickle-down model was used to simulate lake response and to predict the percentage of lakes in the Upper Midwest of the United States at risk at various levels of acidic deposition.
Supplementary Notes Pub. in Jnl. of the Water Pollution Control Federation, v58 n2 p139-148 1986. Prepared in cooperation with Iowa Univ., Iowa City.
NTIS Title Notes Journal article.
Category Codes 68D; 68A; 48G
NTIS Prices PC A03/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 007529515
Origin NTIS
Type CAT