About one in four adults in California report being exposed to secondhand smoke or vape in the past two weeksoften on sidewalks, at home, and in recreational spaces like parks and beaches. Secondhand vape exposure: Risks and side effects Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Secondhand smoke and secondhand aerosol Second hand vape smoke linked to more asthma symptoms in kids Secondhand Smoke Vermont Department of Health