Ask The Doctors: March 2011

Air pollution is generally divided into two categories: particulate matter (PM) and gases. Data from multiple population-based studies have shown a strong association between elevated PM levels-particularly particles smaller than 2.5 microns in diameter (PM2.5)-and cardiovascular disease (CVD). Links have been found between exposure to air pollution and abnormal function of blood vessels, increased blood pressure, arrhythmias, inflammation in the body, blood clotting, and progression of atherosclerosis.
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