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Nicotine + Ozone = Bigger Asthma Threat, Berkeley Study Finds

Wednesday, August 18, 2010

BERKELEY, Calif., Aug. 17 (UPI) -- Ozone can react with secondhand tobacco smoke to form ultrafine particles that may pose a bigger threat to asthma sufferers than nicotine, U.S. researchers say.

Study leader Mohamad Suleiman, a chemist with the Lawrence Berkeley National Laboratory's environmental energy technologies division, and colleagues say the ultrafine particles become major components of thirdhand smoke -- the residue from tobacco smoke that clings on surfaces, long after a cigarette or cigar has been extinguished.

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