Study shows air pollution linked to higher risk of stillbirth

US researchers examined data from more than 343,000 births in New Jersey from 1998–2004, comparing pregnancy outcomes with ambient air pollution levels.

Increased pollution was associated with a greater risk of stillbirth, particularly when women were exposed to nitrogen dioxide in the first trimester, sulphur dioxide in the first and third trimesters, and carbon monoxide in the second and third trimesters.

The transfer of pollutants across the placenta may play a role in fetal cell division during critical periods