PCBs in Reservoirs

The Hartwell Reservoir study

As a component of a Superfund site investigation, bioindicators were used to determine the effects of PCBs on the health of largemouth bass in Hartwell Reservoir, a mainstream impoundment of the Savannah River in Georgia and South Carolina.

Individual site responses for largemouth bass measured in terms of detoxification enzyme induction (EROD), lipid storage (VSI), liver condition (liver lipid), levels of testosterone (male test.), and estrogen binding (estro. binding) in liver cells of female fish.

Integrated site responses based on using 15-20 individual bioindicators per site at three types of sites; highly contaminated sites (yellow), moderately contaminated sites (red), and unaffected reference sites (green).

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