Disposable vapes more toxic and carcinogenic than cigarettes, study shows The dangers of e cigarettes: Why UC Davis says they are more toxic than traditional cigarettes They may look harmless and smell sweet but disposable vapes can release toxic metals at levels even worse than cigarettes. A UC Davis study found lead, nickel, and antimony inside VibeSolano According to a new study from the University of California, Davis (UC Davis), it was revealed that popular single use e cigarettes emit Instagram Full article: Cognitive and Affective Responses to the U.S. FDA E Cigarette Addiction Warning and Advertisements among Young Adults in California: Product Design, Imagery, and Use New study finds disposable vaping devices more toxic than traditional cigarettes