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 What's really inside vapes? We pulled them apart to find out Nicotine absorption from electronic cigarette use: comparison between first and new generation devices Scientific Reports UC Davis study: Disposable vapes may be more toxic than cigarettes Teenage Vaping Declines This Year, Survey Says The New York Times New data show nearly 800,000 teens vaped for the first time in the past year, as FDA is set to announce first major decision to remove a popular e cigarette brand