Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis E Cigarettes and Vaping OHSU Disposable vapes are creating piles of electronic waste Study shows vapes emit more lead than 20 packs of cigarettes yes, *20.* New research has uncovered a disturbing truth about popular disposable vapes: they may be more toxic than UC Davis study: Disposable vapes may be more toxic than cigarettes E cigarettes: Facts, stats and regulations