Secondhand Smoke Exposure Down But Not Gone

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Secondhand Smoke Exposure Down But Not Gone

MedPage Today, July 11, 2008 -- Secondhand smoke exposure has declined significantly in the U.S. since the late 1980s, although in the most recent survey, almost 50% of nonsmokers still had detectable levels of exposure, according to the CDC.
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Page Last Updated: 01/12/2017