Coal burning leaves toxic heavy metal legacy in the Arctic.

  title={Coal burning leaves toxic heavy metal legacy in the Arctic.},
  author={Joseph R McConnell and Ross Edwards},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={105 34},
Toxic heavy metals emitted by industrial activities in the midlatitudes are transported through the atmosphere and deposited in the polar regions; bioconcentration and biomagnification in the food chain mean that even low levels of atmospheric deposition may threaten human health and Arctic ecosystems. Little is known about sources and long-term trends of most heavy metals before approximately 1980, when modern measurements began, although heavy-metal pollution in the Arctic was widespread… CONTINUE READING
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