Record Display for the EPA National Library Catalog
RECORD NUMBER: 5 OF 7Main Title | Lake Resources at Risk to Acidic Deposition in the Upper Midwest. | |||||||||||
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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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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. |