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August 18, 2008 1:14 PM

Research pinpoints why polluted air causes lung disease

New findings from Louisiana State University helps explain why air pollution can lause lung damage similar to that suffered by smokers. LSU researchers have discovered that free radicals, similar to those in cigarettes, exist in polluted air. Furthermore, they found that free radicals often persist for days or even indefinitely, giving them time to interact with lung tissue.

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