Of the 4 million babies born in the USA in 2000, more than 300,000 of them -- and as many as 600,000 -- may have been exposed to "unacceptable" levels of methyl mercury because their mothers ate a diet rich in fish, a study finds.
The new study, by researchers at the Office of Prevention, Pesticides and Toxic Substances at the Environmental Protection Agency, repeats a warning by numerous studies that the neurotoxin is particularly dangerous for growing fetuses.
Exposure to even low levels of mercury in utero can cause developmental problems and difficulties with visual and motor integration.
By looking at diet logs and testing blood levels in 1,709 women, researchers found that women who ate fish and/or shellfish at least twice a week had blood mercury concentrations seven times higher than women who didn't eat fish in the previous month. The women were taking part in the National ...
By Elizabeth Weise
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