Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Chlorinated municipal waste toxicities to rainbow trout and fathead minnows /
Other Authors
Author Title of a Work
Basch, R. E.
CORP Author Michigan. Bureau of Water Management.
Publisher U.S. G.P.O.,
Year Published 1971
Report Number EPA 620-R-71-021
OCLC Number 01122355
Subjects Fishes--Diseases. ; Chlorine--Physiological effect. ; Sewage--Purification--Chlorination--Environmental aspects.
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 620-R-71-021 Headquarters Library/Washington,DC 04/25/2011
EJBD  EPA 620-R-71-021 Headquarters Library/Washington,DC 05/06/2014
ELAM  SH177.C43M52 1971 Region 5 Library/Chicago,IL 03/01/2010
ELBD  EPA 620-R-71-021 AWBERC Library/Cincinnati,OH 07/05/2011
ELDM  SH177.C43M52 1971 2 copies NHEERL/MED Library/Duluth,MN 09/02/1994
Collation vii, 49 pages : illustrations ; 28 cm.
"18050 GZZ 10/71." Includes bibliographical references (pages 39-40).
Contents Notes
Effect of chlorinated municipal wastes on fish life and laboratory findings of earlier researchers were assessed in separate studies at four Michigan municipal wastewater treatment plants. Tolerance levels and river length below each plant outfall rendered unavailable to resident fish populations were determined. Ten rainbow trout (Salmo gairdneri) and ten fathead minnows (Pimephales promelas), previously acclimated, were held 96 hours in live boxes in the stream above and below these outfalls. Fish held below these outfalls were subjected to both chlorinated and non-chlorinated exposures during effluent discharge. Test waters were monitored chemically and bacteriologically during fish exposure. Total residual chlorine concentrations below three plants were toxic to rainbow trout at distances up to 0.8 mile. Fathead minnows appeared adversely affected up to 0.6 mile downstream in two of the four plants. Total residual chlorine concentrations less than 0.1 mg/l were toxic to fathead minnows. Rainbow trout 96-hour total residual chlorine TL-50 concentration below two plants was 0.023 mg/l.