BIOACCUMULATION

The bioaccumulation of pesticides, metals, and polybichlorinated biphenyls (PCBs) was studied from 1991 through 1994 using sites in Little Beaver Creek, Big Run, and Scioto River. A variety of fish was sampled including sunfish and stonerollers in the smaller streams and catfish in the river. These specimens were analyzed following standard BMAP bioaccumulation sampling procedures. Some of these data were used in the PORTS BERA.

In general fish from most sites were contaminated with PCBs.
Selenium was elevated in fish from Big Run, but other metals were in ranges similar to reference sites.
Elevated levels of gross alpha and Tc-99 were found in fish from Little Beaver Creek, but not at levels that suggest substantial bioaccumulation by fish.

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Last Modified: April 17, 2001
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