||Heptachlor: Uptake, Depuration, Retention, and Metabolism by Spot, 'Leiostomus xanthurus'.
Schimmel, Steven C. ;
Patrick, Jr., James M. ;
Forester., Jerrold ;
||Environmental Research Lab., Gulf Breeze, Fla.
Chlorine organic compounds ;
Pesticide residues ;
Leiostomus xanthurus ;
Spot fish ;
Water pollution effects(Animals) ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||The estuarine fish, spot (Leiostomus xanthurus), was exposed to 0.27, 0.52, 1.01, 1.99, and 3.87 micrograms/liter technical grade heptachlor (65% heptachlor, 22% trans-chlordane, 2% cis-chlordane, 2% nonachlor, and 9% unidentified compounds) for 24 days in a flow-through bioassay, followed by 28 days in heptachlor-free seawater. Concentrations of heptachlor, heptachlor expoxide, and trans- and cis-chlordane in edible tissues were monitored at day 3 and weekly thereafter throughout the bioassay and at the end of the postexposure period. All four chemicals were accumulated by spot. Maximum concentrations of heptachlor were observed on day 3; maximum bioconcentration of the other three compounds were observed on day 17. The average bioconcentration factors for heptachlor and trans-chlordane were 3,600 and 4,600, respectively. Only 10% or less of the maximum concentrations of heptachlor, heptachlor epoxide, and trans-chlordane accumulated during the exposure period remained after 28 days in pesticide-free seawater; an average of 35% of the cis-chlordane remained.
||Pub. in Jnl. of Toxicology and Environmental Health, v2 p169-178 1976.
|NTIS Title Notes
|PUB Date Free Form
||6T; 8A; 6F; 13B; 57Y; 47D; 68E; 68D
||Not available NTIS