Disposable Vapes and Heavy Metal Headaches Grow Strong KC New study finds disposable vaping devices more toxic than traditional cigarettes New Study Highlights Risks of Metals (lead, nickel, and antimony) in Disposable E cigarettes UC Davis Poulin Research Group The Electronic Cigarette: The Good, the Bad, and the Ugly ScienceDirect New study finds disposable vaping devices more toxic than traditional cigarettes Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times