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  • Study finds unsafe mercury levels in 84 percent of all fishadd to reading list  

    Posted on January 15, 2013 at 12:22 AM

    A new study from the Biodiversity Research Institute in Maine found that 84 percent of fish have unsafe levels of mercury. That poses a health risk for humans, exceeding the guidelines for eating certain kinds of fish more than once a month.

    By CBS News

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