Record Display for the EPA National Library Catalog


Main Title Toxicity and Bioaccumulation of Hexachlorocyclopentadiene, Hexachloronorbornadiene and Heptachloronorbornene in Larval and Early Juvenile Fathead Minnows, 'Pimephales promelas'.
Author Spehar, R. L. ; Veith, G. D. ; DeFoe, D. L. ; Bergstedt, B. V. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1979
Report Number EPA/600/J-79/017;
Stock Number PB-298 546
Additional Subjects Fishes ; Toxicology ; Pesticides ; Chlorine organic compounds ; Insecticides ; Toxicity ; Bioassay ; Lethal dosage ; Concentration(Composition) ; Larvae ; Residues ; Exposure ; Freshwater fishes ; Survival ; Growth ; Chlorine organic compounds ; Bioaccumulation ; Fathead minnows ; Pimephales promelas ; Toxic substances ; Toxicology ; Reprints ; Pesticide residues ; Cyclopentadiene/hexachloro ; Norbornadiene/hexachloro ; Norbornene/heptachloro
Library Call Number Additional Info Location Last
NTIS  PB-298 546 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
The toxicity and bioaccumulation of hexachlorocyclopentadiene, hexachloronorbornadiene and heptachloronorbornene to fathead minnow larvae and early juveniles was conducted for 30 days under flow through conditions. The 96-hr LC50 and 30-day LC50 values for these compounds, respectively were: 7.0 and 6.7 microgram/l, 188 and 123 microgram/l, and 85.6 and 60.1 microgram/l. Residues of hexachlorocyclopentadiene in 30-day-old larvae were less than 0.1 microgram/l resulting in a BCF of <11. The concentration of hexachloronorbornadiene and heptachloronorbornene accumulated by fathead minnows was directly proportional to the mean exposure concentration up to an effect concentration of approximately 40 microgram/l and resulted in BCFs of 6,400 and 11,200 for each compound, respectively.