Air pollution exposure to near conception raises risk of birth defects


Women who breathe polluted air during the month right before or after they get pregnant may be more likely to have babies with birth defects, a US recent study suggests. Researchers examined data on birth defects for almost 290,000 infants born in Ohio from 2006 to 2010, matching these records with air pollution measurements near mothers’ homes.

They focused on what’s known as fine particulate matter, or PM 2.5, a mixture of solid particles and liquid droplets smaller than 2.5 micrometers in diameter that’s.....

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