Published:
March 1, 2000
Originator:
Chesapeake Bay Program Office
EPA Number:
EPA 903-R-00/006

this study was designed to evaluate ambient toxicity in the Chesapeake Bay watershed by using a battery of water column and sediment toxicity tests in concert with both fish and benthic community assessments. A team of scientists from two Chesapeake Bay research laboratories, Maryland Department of Natural Resources and Versar Inc. worked jointly to complete this goal. Water column toxicity studies and overall project management were directed by Lenwood W. Hall, Jr. of the University of Maryland's Agricultural Experiment Station. Sediment toxicity tests and water/sediment chemical analysis were managed by Alan Messing of Old Dominion Universities Applied Marine Research Laboratory. Margaret McGinty of Maryland Department of Natural Resources was responsible for the fish community assessments and Ananda Ranasinghe of Versar Inc. conducted the benthic community assessments. Raymond Alden was responsible for the water and sediment index calculations. This report summarizes data from the seventh year of a seven-year ambient toxicity testing program. The U.S. Environmental Protection Agency's Chesapeake Bay Program Office supported this study.

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