Secondhand vape plumes could form lung damaging radicals American Chemical Society Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC7 Chicago Evidence Mounts About the Health Impact of Second Hand Vaping Bisnar Chase In secondhand vape, scientists smell risk American Heart Association