Record Display for the EPA National Library Catalog
RECORD NUMBER: 6 OF 6Main Title | Toxicity and Bioaccumulation of Hexachlorocyclopentadiene, Hexachloronorbornadiene and Heptachloronorbornene in Larval and Early Juvenile Fathead Minnows, 'Pimephales promelas'. | |||||||||||
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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 | |||||||||||
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Collation | 10p | |||||||||||
Abstract | 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. |