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Published online 18 September 2003 | Nature | doi:10.1038/news030915-7
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Salmon dump pollutants on lake bed
Decaying fish dump PCBs in Alaska's lakes.
Salmon travelling to Alaska's lakes to spawn are carrying large doses of industrial pollutants with them, a study has shown1.
Environmentalists fear that the accumulation of these compounds, called polychlorinated biphenyls (PCBs), could have harmful consequences for the region's top carnivores: bears, eagles - and humans.
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