Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN In secondhand vape, scientists smell risk American Heart Association Despite widespread smoke free policies in California, rates of recent exposure to secondhand tobacco smoke, vape aerosol, and cannabis smoke among adults aged 1864 have been slowly increasing since 2020, with vape exposure Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals