Record Display for the EPA National Library Catalog

RECORD NUMBER: 189 OF 231

OLS Field Name OLS Field Data
Main Title Screening Level Probabilistic Ecological Risk Assessment of Copper and Cadmium in the Chesapeake Bay Watershed.
Author Hall, L. W. ; Scott, M. C. ; Killen, W. D. ;
CORP Author Maryland Univ., Queenstown. Wye Research and Education Center.;Environmental Protection Agency, Annapolis, MD. Chesapeake Bay Program.
Publisher Sep 97
Year Published 1997
Report Number EPA-CB993438010;
Stock Number PB98-105562
Additional Subjects Copper ; Cadmium ; Chesapeake Bay ; Water pollution monitoring ; Water pollution sources ; Nonpoint sources ; Metals ; Ecological concentrations ; Aquatic ecosystems ; Screening ; Sensitivity analysis ; Probability distribution functions ; Watersheds ; Fish ; Benthos ; Zooplankton ; Trophic level ; Toxicity ; Exposure ; Salt water ; Fresh water ; Water pollution effects(Animals) ; Potomac River ; Statistical analysis ; Ecological risk assessment ; Environmental stressors
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB98-105562 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/07/1998
Collation 228p
Abstract
The goal of this study was to conduct a screening level probabilistic ecological risk assessment for copper and cadmium in the Chesapeake Bay watershed by using problem formulation, analysis, and risk characterization. This probabilistic ecological risk assessment characterized risk by comparing the probability distributions of environmental exposure concentrations with the probability distributions of species response data determined from laboratory studies. The overlap of these distributions was a measure of risk to aquatic life. Comparative risk from copper and cadmium exposure was determined for various basins in the Chesapeake Bay watershed.