Record Display for the EPA National Library Catalog

RECORD NUMBER: 372 OF 3822

OLS Field Name OLS Field Data
Main Title Background Hydrocarbon Residues in Fishes from the Great Lakes and Eastern Montana.
Author Welch, K. J. ; Kuehl, D. W. ; Leonard, E. N. ; Veith, G. D. ; Schoenthal, N. D. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1981
Report Number EPA/600-J-81-346;
Stock Number PB82-127341
Additional Subjects Fishes ; Hydrocarbons ; Residues ; Great Lakes ; Montana ; Organic compounds ; Sampling ; Watersheds ; Reprints ; Water pollution effects(Animals)
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB82-127341 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 5p
Abstract
For the past eight years, this laboratory has been conducting GC/MS exploration studies of organic chemical residues in fishes from major U.S. watersheds. One of the frequently occurring classes of chemicals isolated by multi-class analytical techniques, such as gel permeation chromatography, is n-alkanes. Odd-numbered alkanes with 13-19 carbon atoms are often the most abundant, and are predominanted by n-heptadecane. The presence of these compounds seem to indicate normal biosynthesis in aquatic ecosystems (MCINNES et al. 1980), whereas their absence or the presence of other hydrocarbon mixtures which obscure the natural hydrocarbons may be indicative of an adverse impact on the ecosystem (VEITH et al. 1979). This study presents quantitative data for background levels of these compounds in fishes from selected eastern Montana watersheds. Sampling sites were chosen to represent watersheds having coal extraction and conversion activities and those that do not. In comparison, data is also presented for Great Lakes fish.