Air pollution may be linked to an increased risk of heart attack

Reuters reports that, according to a study published in the Journal of the American Medical Association, air pollution may be linked to an increased risk of heart attack.

WebMD reports that investigators “analyzed the results of 34 studies on the association between short-term exposure to air pollution (up to seven days) and the subsequent risk of heart attack.”

MedPage Today reports, “For each short-term increment of 10 mcg/m3 of nitrogen dioxide, sulfur dioxide, and so-called PM10 and PM2.5 particulates, risk of MI for exposed individuals went up by 1% to 2.5% (P<0.01 for each).”

The researchers reported that “an even larger effect was seen with carbon monoxide, for which each 1 mg/m3 increment was associated with a 4.8% increase in MI risk.”

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