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Pacific Northwest salmon poisoning killer whales

Study finds planet's most PCB-contaminated mammals, says one researcher

Killer whales that feast on salmon in the Pacific Northwest are getting a heaping side of contaminants with each meal. The chinook salmon are heavily dosed with chemicals such as DDT and PCBs, nearly all of which the fish acquire in their years at sea, reports a new study in the January Environmental Toxicology and Chemistry.

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