Can Vaping Cause Lung Cancer? Here's What We Know The Lung Docs Study: (Non FDA Approved) Vapes Emit More Toxic Metals Than Cigarettes Tobacco Reporter UC San Diego Whack a mole vaping policies do not protect youth, Stanford Medicine study shows Disposable Vapes Release More Toxic Metals Than Traditional Cigarettes: UC Davis Study The Epoch Times Disposable vapes are more toxic than cigarettes, contain lead: Study