STUDY: AIR POLLUTION HARMS UNBORN BABIES

Babies' DNA can be damaged in the womb if their mothers breathe polluted air, according to a study published Tuesday by a research team at the Columbia University Center for Children's Environmental Health.

Kenneth Olden, director of the National Institute of Environmental Health Sciences, which funded the study, said, "This is the first study to show that environmental exposures to specific combustion pollutants during pregnancy can result in chromosomal abnormalities in fetal tissues."