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Childhood obesity linked to prenatal exposure to air pollution

A study done in New York City finds that prenatal exposure to higher levels of a group of chemicals called polycyclic aromatic hydrocarbons resulted in two times the likelihood of obesity by the age of 7.  PAH is a common pollutant found in urban areas, especially areas where coal, diesel, oil, gas or other organic substances such as tobacco are burned.

Source: Medical Xpress  Photo: Public Domain

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