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 Metals in Cannabis Vaporizer Aerosols: Sources, Possible Mechanisms, and Exposure Profiles : r science What's really inside vapes? We pulled them apart to find out ABC News Vaping: High lead and nickel found in illegal vapes BBC News