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RECORD NUMBER: 14 OF 34

Main Title Empirical Models for Lake Acidification in the Upper Great Lakes Region.
Author Rogalla, J. A.; Brezonik, P. L.; Glass, G. E.;
CORP Author Environmental Research Lab.-Duluth, MN. ;Minnesota Univ., Minneapolis. Dept. of Civil and Mineral Engineering.
Publisher c1986
Year Published 1986
Report Number EPA/600/J-86/486;
Stock Number PB89-104426
Subjects Acidification; Great Lakes; Water pollution; Precipitation(Meteorology); Mathematical models; Watersheds; Estimates; Alkalinity; Sulfur dioxide; Sulfuric acid; Ions; Land use; Graphs(Charts); Michigan; Minnesota; Wisconsin; Reprints;
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB89-104426 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/14/1989
Collation 9p
Abstract A large data base on inland lakes in the Upper Great Lakes Region (UGLR) was used to evaluate assumptions and relationships of empirical acidification models. Improved methods to calculate background alkalinity and background SO4(2-) are reported; SO4(2-) enrichment factors indicate that terrestrial SO4(2-) sources and watershed or lake sinks must be considered for site-specific background SO4(2-) estimates. Significant relationships were found between lake acidification estimated as change in SO4(2-) and precipitation acidity but not between changes in lake alkalinity and precipitation acidity in the lightly impacted region. (Copyright (c) 1986 by D. Reidel Publishing Company.)
Supplementary Notes Pub. in Water, Air, and Soil Pollution 31, p95-100 Jul 86. Prepared in cooperation with Minnesota Univ., Minneapolis. Dept. of Civil and Mineral Engineering.
NTIS Title Notes Journal article.
Title Annotations Reprint: Empirical Models for Lake Acidification in the Upper Great Lakes Region.
Category Codes 68A; 68D; 48G
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Control Number 833026825
Cataloging Source NTIS/MT
Origin NTIS
Type CAT


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