In secondhand vape, scientists smell risk Health cherokeephoenix.org Vaping, Second Hand Smoke, and Kids Medical Associates of Northwest Arkansas Chemicals Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA