Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of a Site-Specific Criterion Using Outdoor Experimental Streams.
Author Hedtke, S. F. ; Arthur, J. W. ;
CORP Author Environmental Research Lab.-Duluth, Monticello, MN. Monticello Ecological Research Station.
Year Published 1985
Report Number EPA/600/D-85/041;
Stock Number PB85-167914
Additional Subjects Phenols ; Water quality management ; Streams ; Toxicity ; Chlorine organic compounds ; Aquatic animals ; Snails ; Metabolism ; Dosage ; Protection ; Evaluation ; Water quality criteria ; Phenol/chloro ; Ecosystems ; PCP
Library Call Number Additional Info Location Last
NTIS  PB85-167914 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 25p
An overview of a study to evaluate a site-specific water quality criteria for pentachlorophenol (PCP) in outdoor experimental streams is presented. The site-specific criterion was calculated from acute toxicity results for eight resident species and the relationship between acute and chronic toxicity of PCP. The PCP concentration expected to protect aquatic life (30-day average criterion concentration) was less than or equal to 48 micrograms/l. Outdoor experimental streams were subsequently dosed continuously for 84 days at 48, 144, and 432 micrograms PCP/l. Measurements of the biological structure and ecosystem processes within the exposure streams were compared to a control system. Effects on snails were found only at 432 micrograms/l, but effects on fish, periphyton, and system metabolism were found at 432, 144, and 48 micrograms/l. The small differences between the criterion-dosed stream (48 micrograms/l) and the control stream may have been caused by PCP or interstream variation.