Real-World Studies Show Air Pollution Lowers Lung Function

Two real-world studies recently reported in the New England Journal of Medicine show that increased exposure to traffic heavy with diesel exhaust has a measurable effect on lung capacity.

The Swiss study conducted over an 11-year period showed that breathing cleaner air resulting from a cut in air pollution through the enforcement of stricter environmental laws, added an extra year of healthy breathing to test subjects. The London study examined 60 asthmatic adults as they took 2-hour walks. The subjects walked along a busy London street filled with exhaust or in a traffic-free park. Lung function decreased by 5-6 percent after being exposed to traffic emissions.

It appears from the studies that a decrease in exposure to particulate matter, a component of diesel exhaust, and breathing cleaner air reduces the aging affect on the lungs.

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The China Post

U.S. News & World Report

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Find out how to reduce diesel particulate emissions by retrofitting with diesel particulate filters.

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