Dec 18, 2014 5:51 PM

New study ties exposure to high smog levels in pregnancy to autism

A study just released is shining new light on autism. It ties the disorder to air pollution.

The new Harvard study says pregnant women living in highly polluted areas double their risk of having children with autism, compared to women living in areas with cleaner air.

It says women in their third trimester face the greatest risk. It is in the third trimester that the child's brain develops many of its essential parts.

The finding released Thursday online at the Environmental Health Perspectives website.


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