Record Display for the EPA National Library Catalog


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.
Year Published 1987
Report Number EPA/600/J-87-034;
Stock Number PB87-198370
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
Library Call Number Additional Info Location Last
NTIS  PB87-198370 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 19p
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.