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RECORD NUMBER: 35 OF 958

OLS Field Name OLS Field Data
Main Title Acute Toxicity, Bioconcentration and Persistence of AC 222,705, Benthiocarb, Chlorpyrifos, Fenvalerate, Methyl Parathion and Permethrin in the Estuarine Environment.
Author Schimmel, S. C. ; Garnas, R. L. ; Patrick, Jr., J. M. ; Moore, J. C. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Year Published 1983
Report Number ERLN-592 ;EPA-600/J-83-124;
Stock Number PB84-138577
Additional Subjects Toxicology ; Pesticides ; Minnows ; Persistence ; Estuaries ; Oysters ; Mysids ; Reprints ; Water pollution effects(Animals) ; Bioaccumulation ; AC 222 705 ; Benthiocarb ; Chlorpyrifors ; Fenvalerate ; Methyl parathion ; Permethrin
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NTIS  PB84-138577 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 13p
Abstract
Six pesticides were evaluated in laboratory studies to determine acute (96-h) toxicity, octanol-water partition coefficient (log P), solubility, and persistence in seawater. In addition, three of the six pesticides (synthetic pyrethroids) were tested by using the eastern oyster (Crassostrea virginica) in long-term (28-day) tests to determine their respective bioconcentration factors (BCF). Acute toxicity tests provided the following decreasing order of toxicity to estuarine crustaceans and fishes: AC 222,705, fenvalerate, permethrin, chlorpyrifos, methyl parathion, and benthiocarb. The estuarine mysid (Mysidopsis bahia) was consistently the most sensitive species, with LC50 values as low as 0.008 micrograms/L. The sheepshead minnow (Cyprinodon variegatus) was generally the least sensitive (range of LC50 values = 1.1-1370 micrograms/L). Log P values were inversely related to solubility in seawater.