New Survey Reveals Scale of Disposable Vape Black Market Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Does Vaping Cause Lung Cancer? Vaping has been marketed as a healthier alternative to smoking. But, do you actually know what is in your vape? Turns out vapes contain heavy metals, cancer causing agents, and so many more