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Traffic Fumes Linked to Lower Birth Weight, University of California, San Francisco (UCSF) Study  
2/6/2013 7:04:03 AM

Pregnant women who live in areas with significant air pollution risk having babies of low birth weight, the largest study to date suggests. The study, in Environmental Health Perspectives, looked at more than three million births in nine nations. The effect was small and individuals should not be alarmed, but there was a notable impact on the population as a whole, the researchers said.