Occurrence of Kepone in white-footed mice (Peromyscus leucopus noveboracensis) on Jamestown Island,Virginia

Significant quantities of Kepone (chloredecone) were found in the livers of white-footed mice captured on Jamestown Island, Virginia, in the James River. Levels of Kepone were significantly greater than found in the livers of mice of the same species from inland populations captured on the Ecological Study Area of the College of William and Mary, Williamsburg, Virginia, adjacent to a tributary of the James River but at a distance of approximately 4.8 km from the river. These data are the first indicating Kepone contamination of small mammals in a terrestrial ecosystem.