Secondhand Vape Plumes May Form Lung Damaging Free Radicals: Study Tobacco Reporter Secondhand smoke from vaping could be harmful to children: study ABC13 Houston Secondhand Electronic Cigarette Aerosol and Indoor Air Quality US EPA According to a Centers for Disease Control and Prevention (CDC) study, 40% of U.S. adults believe that children's exposure to secondhand aerosol from e cigarettes causes only some or little harm, and 5%