Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Differential Toxicity and Uptake of Two Fenvalerate Formulations in Fathead Minnows, 'Pimephales promelas'.
Author Bradbury, S. P. ; Coats, J. R. ; McKim, J. M. ;
CORP Author Iowa State Univ., Ames.;Environmental Research Lab.-Duluth, MN.
Year Published 1985
Report Number EPA/600/J-85/187;
Stock Number PB86-117215
Additional Subjects Insecticides ; Toxicity ; Minnows ; Water pollution ; Butyrates ; Emulsifying agents ; Concentration(Composition) ; Exposure ; Mortality ; Survival ; Tests ; Reprints ; Pimephales promelas ; Fathead minnows ; Fenvalerate ; Pesticide residues
Library Call Number Additional Info Location Last
NTIS  PB86-117215 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 10p
The influence of the commercial emulsifier on the acute toxicity and uptake of fenvalerate ((R,S)-a-cyano-3-phenoxybenzyl(R,S)-2-(4-chlorophenyl)-3-methylbutyrate), a synthetic pyrethroid insecticide, by fathead minnows (Pimephales promelas) was examined. Flow-through acute toxicity testing with measured concentrations of technical-grade fenvalerate and a 30% active ingredient emulsifiable concentrate (EC) of the insecticide was conducted. Steady-state LC50 values were reached by 72 and 120 to 168 h, respectively, in tests with technical-grade and EC formulations of this insecticide. Initially, technical-grade fenvalerate was more toxic; the 96-h LC50s for technical-grade fenvalerate and the EC were 0.69 and 0.99 micrograms/l, respectively. By 168 h, an LC50 of 0.75 micrograms/l was determined for the EC, indicating that the incipient lethalities of the two formulations were similar. (Copyright (c) 1985 SETAC.)