More dangers of air pollution...

Evidently, living closer to more roads (and hence being exposed to more car exhaust and other related pollutants) is associated with higher levels of pre-term birth. Isn't that just swell!*

Me and my only slightly pre-term nephew, who I met for the first time yesterday!

*Caveat: The actual conclusion from the article is as follows: "This effect may be due to the chemical toxins in traffic pollutants, or because of disturbed sleep due to traffic noise."

I wonder if women in Los Angeles give birth earlier, on average, than women living in less polluted areas of the country?