Air pollution takes a double toll on babies' brains

March 25, 2015 3:20 PM

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A common pollutant in vehicle exhaust, power plant emissions and secondhand cigarette smoke can shrink white matter in fetal brains and cause further developmental damage during the toddler years, a new study suggests.

Prenatal exposure to polycyclic aromatic hydrocarbons (PAHs), a byproduct of incomplete combustion of organic material, was correlated with reduced white matter on the left side of children's brains during their toddler years, according to the study published online Wednesday in the journal JAMA Psy...

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