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National Status and Trends: Bioeffects Program: Magnitude and Extent of Sediment Toxicity of South Carolina and Georgia

Published by National Centers for Coastal Ocean Science | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 19, 2025 | Last Modified: 2007-10-01T00:00:00.000+00:00
Surficial sediment samples were collected from 162 locations within five estuaries - Charleston Harbor, Winyah Bay, Leadenwah Creek, Savannah River, and St. Simons Sound - in coastal South Carolina and Georgia in a survey of sediment toxicity performed in 1993 and 1994. All samples were tested for toxicity and a battery of complimentary laboratory bioassays. The laboratory bioassays consisted of amphipod survival tests in solid-phase sediments, microbial bioluminescence (Microtox) tests of organic solvent extracts, and sea urchin fertilization and embryo development tests of porewaters. Some samples were also tested in copepod reproduction and cytochrome P-450 RGS bioassays. Chemical analyses for a suite of trace metals, organic compounds and sedimentological factor were performed with portions of most samples.

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