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RECORD NUMBER: 34 OF 2348

OLS Field Name OLS Field Data
Main Title Acid Deposition and Watershed Characteristics in Relation to Lake Chemistry in Northeastern Minnesota.
Author Rapp, G. ; Allert, J. D. ; Liukkonen, B. W. ; Loucks, O. L. ; 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 1985
Report Number EPA/600/J-85/448;
Stock Number PB87-116372
Additional Subjects Acidity ; Neutralizing ; Lakes ; Air pollution ; Water pollution ; Chemical analysis ; Sulfates ; Alkalinity ; Color ; Water chemistry ; Watersheds ; Color ; Geochemistry ; Land use ; Correlation ; Regression analysis ; Tables(Data) ; Minnesota ; Reprints ; Acid rain
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NTIS  PB87-116372 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 18p
Abstract The relationship between lake sensitivity to atmospheric acidic inputs and the neutralization capacity of watersheds is examined for 267 lakes in northeastern Minnesota. Three water chemistry/sensitivity measures (color, sulfate, and alkalinity) are correlated with variables representative of precipitation and sulfate inputs, hydrology, and the acid neutralization capacity of various watershed components. An ordinal scale for ranking bedrock and surficial deposit neutralization capacity is presented. The watershed variables found to account for the largest percentages of the variability in measured color, sulfate, and alkalinity levels are determined. The results illustrate important averaging properties of watersheds from small headwater systems to large drainages and the difficulty in obtaining correlations for some water quality measures (e.g., alkalinity) when some variables, such as soils and land cover, are available only as large-area averages.
Supplementary Notes Pub. in Environment International, v11 p425-440 1985. 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: Acid Deposition and Watershed Characteristics in Relation to Lake Chemistry in Northeastern Minnesota.
PUB Date Free Form c1985
Category Codes 68A; 68D; 48G; 99A
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 703716193
Origin NTIS
Type CAT