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OLS Field Name OLS Field Data
Main Title Toxicity of Synthetic Pyrethroids to Freshwater Invertebrates.
Author Anderson, R. L. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Publisher c1989
Year Published 1989
Report Number EPA/600/J-89/033;
Stock Number PB90-100645
Additional Subjects Toxicity ; Invertebrates ; Aquatic biology ; Pesticides ; Culicidae ; Fresh water ; Zooplankton ; Reprints ; Pyrethroids ; Water pollution effects(Animals) ; Risk assessment ; Acute exposure ; Chironomids ; Blackflies
Holdings
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Status
NTIS  PB90-100645 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/10/1990
Collation 10p
Abstract The report reviews the laboratory toxicity data on fresh water target and nontarget invertebrates exposed to pyrethroids and evaluates the state of the data. Early in their development, pyrethroids were shown to be highly effective insecticides against mosquitoes, blackflies and chironomids. Acute LC50 values for these target animals were often less than 1 micro g/L. Acute exposures of nontarget invertebrates showed that some species were as sensitive as the target insects. Longer exposures, up to 28 days, showed that lethal effect concentrations were lowered with increased exposure duration. Unfortunately, the long-exposure tests were limited to a few species and a few pyrethroids, so no general commentary on no effect concentrations is possible. Some species were affected at concentrations near the analytical detection limit for pyrethroids. The data reviewed show that temperature, life cycle stage and exposure duration will be critical factors in developing the no effect concentrations that are important in risk assessments for nontarget invertebrates exposed to these insecticides.
Supplementary Notes Pub. in Environmental Toxicology and Chemistry, v8 p403-410 1989.
NTIS Title Notes Journal article.
Title Annotations Reprint: Toxicity of Synthetic Pyrethroids to Freshwater Invertebrates.
Category Codes 68E; 68D; 68G; 57Y; 57P
NTIS Prices PC A02/MF A01
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 932616493
Origin NTIS
Type CAT