Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 42

OLS Field Name OLS Field Data
Main Title Benzo(a)pyrene Accumulation and Depuration in the Soft-Shell Clam ('Mya arenaria').
Author Jackim, Eugene ; Wilson, Laure ;
CORP Author Environmental Research Lab., Narragansett, RI.
Year Published 1977
Report Number EPA/600/J-77/159;
Stock Number PB-299 300
Additional Subjects Clams ; Toxicology ; Meetings ; Mollusca ; Shellfish ; Experimental data ; Aromatic polycyclic hydrocarbons ; Pyrenes ; Labeled substances ; Carbon 14 ; Radioactive isotopes ; Exposure ; Toxic substances ; Depuration ; Bioaccumulation ; Mya arenaria ; Benzopyrenes
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-299 300 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 6p
Abstract
Three hundred clams were placed in sediment in a continuous flow seawater tank between March and June. The tank was dosed with 14C labeled benzo(a)pyrene in no. 2 fuel oil daily. Animals were removed weekly and assayed for accumulation of the radioactive material. On the sixth, thirty-third and sixty-first day of exposure animals were removed from the dosing tank, placed in sand substrate with flowing seawater for depuration and again monitored weekly for remaining radioactivity. It was found that above a large variability and fluctuation there was a gradual trend toward increased accumulation over a 90 day period. Depuration is moderately rapid and resembles a first order decay curve. Biological half-life ranged between 5.5 and 9 days. The depuration rate appeared to be somewhat slower upon prolonged accumulation. This is compared to PNA depuration rates from field animals.