Record Display for the EPA National Library Catalog

RECORD NUMBER: 541 OF 3913

OLS Field Name OLS Field Data
Main Title Calculated Contribution of Surface Microlayer PCB to Contamination of Lake Michigan Lake Trout.
Author Connolly, J. P. ; Thomann, R. V. ;
CORP Author Manhattan Coll., Bronx, NY. Environmental Engineering and Science Program.;Environmental Research Lab.-Duluth, MN.
Year Published 1982
Report Number EPA-600/J-82-299;
Stock Number PB83-189068
Additional Subjects Fishes ; Toxicology ; Lake Michigan ; Reprints ; Polychlorinated biphenyls ; Biphenyl/chloro ; Water pollution effects(Animals)
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB83-189068 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 11p
Abstract
The possible significance of PCB concentration in the surface microlayer of Lake Michigan to contamination of lake trout was examined using a modification of a previously developed food chain model. Vertically migrating zooplankton were assumed to spend a fraction of each day exposed to a surface microlayer with dissolved and phytoplankton PCB concentrations at values that resulted in an average exposure concentration 2.1 times greater than subsurface levels. Considering a worst case scenario, the model indicated that approximately 12% (3 micrograms/g) of the PCB concentration in adult lake trout could be contributed from the microlayer.