Risky for Moms-to-Be
AP Photo/Nam Y. Huh |
 

Risky for Moms-to-Be
Heavy traffic is shown at the Freeway 101 and the Freeway 405 northbound intersection in Los Angeles. A comparison of medical records from 81,186 single child births to air pollution levels in a high-traffic area in Los Angeles revealed that high pollution exposure raised the risk of a severely premature birth by 128 percent. | Discovery News Video

 
 
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