Mercury Levels in Yellowfin Tuna Rising Per Year

February 3, 2015 6:27 AM

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Researchers have found that mercury levels in Hawaiian yellowfin tuna are rising, and these rising levels can prove very much harmful for humans who consume large predatory fish that carry mercury. The primary source for mercury is the atmospheric deposition from human activity like gold mining and coal burning.

The toxin is found to be increasing in the fish at a rate of around 3.8 percent per year from 1998 to 2008. For several decades researchers have been expecting this phenomenon to happen due to rise in atmospheric concentrations. Now this is the first evidence that shows that mercury levels are on th...

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