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RECORD NUMBER: 21 OF 169

OLS Field Name OLS Field Data
Main Title Assessment of Salinity Effects on the Toxicity of Atrazine to Chesapeake Bay Species: Data Needs for Development of Estuarine Aquatic Life Criteria.
Author Hall, L. W. ; Ziegenfuss, M. C. ; Anderson, R. D. ;
CORP Author Maryland Univ., Queenstown. Wye Research and Education Center.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Publisher Mar 93
Year Published 1993
Report Number CBP/TRS-109/94;
Stock Number PB94-181526
Additional Subjects Toxicity ; Salinity ; Pesticides ; Water pollution effects(Animals) ; Chesapeake Bay ; Aquatic animals ; Copepods ; Minnows ; Water quality data ; Ecosystems ; Exposure ; Bioassay ; Estuaries ; Statistical analysis ; Atrazine ; Eurytemora affinis ; Cyprinodon veriegatus ; Sheepshead minnow
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB94-181526 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 35p
Abstract
The study was designed to determine the influence of a range of salinities (5, 15 and 25 ppt) on the acute toxicity of atrazine to the copepod, Eurytemora affinis and the sheepshead minnow larvae, Cyprinodon variegatus. An additional objective of the study was to provide acute atrazine toxicity data for E. affinis to fill a data requirement for development of an estuarine water quality criterion. The conclusion from the study is that salinity influences the toxicity of atrazine to two Chesapeake Bay species but the influence is exerted in opposite ways (increased or decreased toxicity) depending on the test species.