Record Display for the EPA National Library Catalog

RECORD NUMBER: 33 OF 1341

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 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
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.