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RECORD NUMBER: 10 OF 34

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
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
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB87-198370 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 19p
Abstract 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.
Supplementary Notes Pub. in Environ. Geol. Water Sci., v9 n3 p155-171 Mar 1987. Prepared in cooperation with Minnesota Univ., Duluth. Coll. of Science and Engineering, and Butler Univ., Indianapolis, IN. Holcomb Research Inst.
NTIS Title Notes Journal article.
Title Annotations Reprint: Geologic and Atmospheric Input Factors Affecting Watershed Chemistry in Upper Michigan.
PUB Date Free Form 1987
Category Codes 68A; 68D; 48G; 48F
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Control Number 723226522
Cataloging Source NTIS/MT
Origin NTIS
Type CAT