Frequent teen vaping might boost risk of toxic lead and uranium exposure BMJ Group Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health Vaping harmless. Chemicals like formaldehyde, arsenic, lead, chromium, and nickel are found in vape aerosol. They damage lungs. They harm developing brains. They raise cancer risks. Protect E cigarettes: Facts, stats and regulations Disposable Vapes: Abertay academics lead push for global reform of single use electronics UC Davis study: Disposable vapes may be more toxic than cigarettes