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Mercury linked to neural tube defects in Chinese newborns.

Babies with two serious neural tube birth defects had higher levels of mercury in their placentas than babies without the birth defects, according to a study conducted in China.The infants with spina bifida and anencephaly were 12 times as likely to have higher-than-average mercury levels. The rural region studied has a high prevalence of neural tube defects and heavy pollution from coal-burning plants, a major source of mercury. However, the babies from this region did not have unusually high mercury exposures.

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