Toxic metal particles can be present in cannabis vapes even before the first use American Chemical Society Young People Increasingly Use Juuls and E Cigarettes to Vape Cannabis Products E cigarette and cannabis social media posts pose risks for teens, study finds HSC News Weed Vaporizers: A Discreet and Odorless Alternative to Smoking Nectar Marijuana and Vaping: Shadowy Past, Dangerous Present The New York Times Vaping Marijuana Rack Card for Schools THC Vape Dangers Handout NIMCO, Inc.