The devices, popular among teens, emit lead, nickel and antimony at concentrations that may exceed cancer and neurological risk thresholds. Disposable Vape Ban: What You Need to Know Firechief Global Vaping, Panic, and Prohibition: Why the UC Davis Study Needs Context Cato at Liberty Blog Toxic metals in vapes may pose major health risks for youth, study finds National Globalnews.ca E cigarette, or Vaping Product, Use Associated Lung Injury (EVALI) Fact Sheets Yale Medicine E Cigarettes and Vaping PPAC Central