Cannabis vape pens can contain unsafe levels of heavy metals
Richard Vogel/AP/ Alamy
Cannabis vape liquids contain toxic heavy metals that do not come from the device itself. In both legal and illegal products, the concentration of nano-sized metal particles exceeds the safe limits for metal intake.
Vaping is touted as a healthier alternative to smoking because heating a drug into an inhalable vapour, rather than burning it, releases lower levels of toxic chemicals. However, vaping liquid does contain other dangerous additives such as benzene, a carcinogen also found in car exhaust. Research…