Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health How does the disposable vape ban work, and how harmful is vaping? A toxic, plastic problem: E cigarette waste and the environment 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 Disposable Vapes Ban Highlights Urgent Need for Safe Recycling