Record Display for the EPA National Library Catalog

RECORD NUMBER: 20 OF 126

OLS Field Name OLS Field Data
Main Title Comparative Toxicity of Polyelectrolytes to Selected Aquatic Animals.
Author Biesinger, Kenneth E. ; Lemke, Armond E. ; Smith, Wesley E. ; Tyo., Robert M. ;
CORP Author Environmental Research Lab.-Duluth, Minn.
Year Published 1976
Report Number EPA/600/J-76/023;
Stock Number PB-265 289
Additional Subjects Aquatic animals ; Toxicity ; Polyelectrolytes ; Flocculants ; Crustacea ; Trout ; Toxicology ; Lake Superior ; Bioassay ; Minnows ; Experimental data ; Tables(Data) ; Reproduction(Biology) ; Physiological effects ; Toxic tolerances ; Fresh water fishes ; Water pollution ; Reprints ; Daphnia magna ; Toxic substances ; Pimephales promelas ; Salmo gairdneri ; Rainbow trout ; Salvelinus namaycush ; Limnocalanus macrurus ; Mysis relicta ; Maximum permissible exposure level ; Water pollution effects(Animals)
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-265 289 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 7p
Abstract
Although polyelectrolytes are widely used to control solids in potable water and municipal wastewater, very few studies have been made to assess their toxicity to aquatic animals. Consequently, the authors tested the acute toxicity of several polyelectrolytes to rainbow trout, lake trout, a mysid, a copepod and a cladoceran in Lake Superior water. They also tested the chronic toxicity of three of these compounds to Daphnia magna to study possible effects on reproduction. Their results indicated that some of the cationic polyelectrolytes tested were toxic at concentrations that might easily be released into the aquatic environment and cause serious problems to aquatic life.