Disposable vapes axed in Belgium in European first to stem youth addiction Fortune Teens vaping more flavored marijuana and less nicotine, study finds A new study from UC Davis found that disposable vapes have much higher concentrations of heavy metals like lead and nickel than traditional cigarettes. CBS Evening News Facebook Turns out the disposable nicotine delivery systems are, as suspected, worse than the real thing, according to a new study from researchers at UC Davis. Up in smoke: Considerations for lithium ion batteries in disposable e cigarettes: Joule How media coverage of vaping restrictions might influence public perceptions: insights from a new study BIT