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PCBs at Danger Levels in Wash., Wisc. Waters
And in the Milwaukee River in Wisconsin, PCB concentrations are high enough to harm humans and wildlife in stretches of the river near Lincoln Park where people swim, waterski and fish. An official says that Milwaukee has been aware of the hazard for a decade, but only now is the information "specific" enough to warrant a funding request for cleanup and signs warning citizens about contamination. And cleanup efforts might not start for years, as there are "scores" of toxic sites in Wisconsin waiting their turn.
PCBs are persistent chemicals that remain in our environment despite having been banned in 1976. PCBs can cause cancer and neurological and reproductive difficulties in humans and other mammals.
EWG's work on PCBs in farmed salmon is available here.
The Seattle Post-Intelligencer and Milwaukee Journal Sentinel have the full stories.