WARNING FOR AND Illegal disposable e cigarettes (vapes) may be more dangerous than traditional cigarettes, according to new research from UC Davis. The study found hazardous levels of toxic heavy metals The dangers of e cigarettes: Why UC Davis says they are more toxic than traditional cigarettes Lead in Vapes: Toxic Metals Found in Disposable E Cigarettes Technology Networks Monitoring E Cigarette Trends in the United States Disposable vapes spew toxic metals at higher levels than cigarettes, study finds Cristina Davis' lab to lead one of the largest studies of vaping to date Mechanical and Aerospace Engineering UC Davis Engineering