Record Display for the EPA National Library Catalog
RECORD NUMBER: 969 OF 4311
|OLS Field Name||OLS Field Data|
|Main Title||Geologic and Atmospheric Input Factors Affecting Watershed Chemistry in Upper Michigan.|
|Author||Rapp, G. ; Liukkonen, B. W. ; Allert, J. D. ; Sorensen, J. A. ; Glass, G. E. ;|
|CORP Author||Environmental Research Lab.-Duluth, MN. ;Minnesota Univ., Duluth. Coll. of Science and Engineering. ;Butler Univ., Indianapolis, IN. Holcomb Research Inst.|
|Additional Subjects||Acidification ; Lakes ; Water pollution ; Air pollution ; Neutralizing ; Acidity ; Correlation ; Inorganic sulfates ; Color ; Watersheds ; Land use ; Ground water ; Sedimentary rocks ; Hydrogeology ; Organic soils ; Sensitivity ; Michigan ; Reprints ; Path of pollutants|
The relationships between watershed variables and lakewater chemistry were examined for 53 lakes in the Upper Peninsula of Michigan to identify factors influencing lake sensitivity to atmospheric inputs. The lakes lie in three distinct geologic/geomorphic regions. Acid neutralization capacity (ANC), sulfate and color were correlated with parameters related to atmospheric loading, watershed area and relief, hydrology, geology, and land use for the entire 53-lake set and for lower alkalinity subsets. Acid-neutralizing capacity was related to atmospheric acidic inputs and, in the southern portion of the Upper Peninsula, to the presence of mineralized groundwater inputs.