Scientists Find Less Mercury in the Arctic Than Expected

December 21, 2013 2:03 AM

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For years, researchers have thought that if mercury is high and increasing in fish in the North American and European Arctic, then the same must be true of fish elsewhere in the Arctic. Now, though, scientists have found that this not the case for much of the continental Arctic.

Atmospheric mercury comes largely from mining and ore processing, such as smeltering. Under certain water conditions, though, mercury is converted to a special form that can be absorbed by living organisms through a process called methylation. This methylmercury is highly toxic and can cause a host ...

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