Air pollution from heavy traffic may be drivingResearchers who matched more than 60,000 birth records with air-monitoring data found that pregnant patients living in an urban area with elevated levels of nitrogen dioxide had higher rates of preterm birth.
“The relationship between air pollution exposure and childhood and adult respiratory conditions is well established, but this study is novel in identifying consequences to the perinatal population,” Nelson noted. The investigators compared data from the U.S. Environmental Protection Agency Air Quality System database withThe team calculated the average exposure to nitrogen dioxide for individual patients by trimester, and then assessed the effect.
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