Record Display for the EPA National Library Catalog


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)
Library Call Number Additional Info Location Last
NTIS  PB83-189068 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 11p
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.