Running on Fumes: A Breath of Brown Air: Patriot News

September 11th, 2007: The Patriot-News

Running on Fumes: A Breath of Brown Air

by Pat Carroll

Excerpt: “Exercise is good for you, right? Yes, except for the part where you breathe.

Fine and ultrafine particles in the air measure as little as four-millionths of an inch, visible only with an electron microscope. They bypass the filter in your nose and settle in your lungs or migrate into your blood.

‘What happens, especially if you’re exercising, is there’s a deposition of these particles,’ Rundell said. ‘The more particles, the more are deposited in the lungs. As you exercise, the deposition fraction goes up — the amount of particulate that stays in the lung even after you exhale.'”

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