Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Should I Be Concerned About Secondhand Vaping? Secondhand exposure to vaping can cause serious respiratory issues study The Jerusalem Post Juul study shows secondhand vaping emissions are less toxic than cigarette smoke