A University of North Carolina Lab found elevated mercury concentrations in 24 swordfish samples from supermarket chains including Safeway, Shaws, Albertsons and Whole Foods.
Groups that paid for the analysis want supermarkets to post signs warning shoppers of health risks from mercury.
Average levels were 1.1 parts per million, just over the goverment's limit of 1.0 ppm. The Food and Drug Administration can take legal action to remove a product from the market if mercury levels exceed that limit. Two samples, from Maine and Rhode Island, contained double the federal limit for mercury.
Steve - this is old news. We know that larger fish that live longer build up more heavy metals in their tissue. We never recommend fish like shark, swordfish, or marlin for this reason.
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