5 Vaping Facts You Need to Know Johns Hopkins Medicine Secondhand exposure from vaping marijuana: Concentrations, emissions, and exposures determined using both research grade and low cost monitors ScienceDirect The Arlington City Council has updated its smoking ordinance to ban e cigarettes and vaping devices in all indoor public places and workplaces. Officials said the change closes a loophole in the city's Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center Flavored tobacco ban could harm local businesses El Camino College The Union Which Smoking Habit Puts You Most at Risk?