Disposable e cigarettes, popular among teens and young adults, are not as harmless as they may seem. Recent studies have revealed that these devices release toxic metals like lead, nickel, and antimony into Disposable Vapes and Heavy Metal Headaches Grow Strong KC Vaping: High lead and nickel found in illegal vapes BBC News Metals in Cannabis Vaporizer Aerosols: Sources, Possible Mechanisms, and Exposure Profiles : r science