Record Display for the EPA National Library Catalog

RECORD NUMBER: 9 OF 11

OLS Field Name OLS Field Data
Main Title Reactions That Modify Chemistry in Lakes of the National Surface Water Survey.
Author Lee, S. ; Schnoor, J. L. ;
CORP Author Iowa Univ., Iowa City. Dept. of Civil and Environmental Engineering.;Corvallis Environmental Research Lab., OR.
Publisher c1988
Year Published 1988
Report Number EPA/600/J-93/349;
Stock Number PB93-229672
Additional Subjects Lakes ; Water chemistry ; Acidification ; Chemical reactions ; Mass balance ; Ion exchange ; Chlorides ; Acid rain ; Runoff ; Watersheds ; Acid neutralizing capacity ; Reprints ; Eastern Region(United States) ; National Surface Water Survey
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB93-229672 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/22/1993
Collation 8p
Abstract
A simple mass balance equation was used to determine the important reactions that occur in selected lake watersheds of the Adirondack Park, the Southern Blue Ridge Province of the Appalachian Mountains, and a portion of northern Flordia. The mass balance requires only three input parameters: precipitation ion concentration, lake ion concentration, and an evapoconcentration factor appliable to the watershed. It was determined that the most important alkalizing reaction in all three study areas was the production of base cations (Ca2+, Mg2+, and Na1+) by ion exchange and chemical weathering, followed by sulfate adsorption in the Southern Blue Ridge watersheds and nitrate assimilation/reduction in the Adirondack Park. (Copyright (c) 1988 American Chemical Society.)