Public health efforts lead to decline in teen vaping 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 Recent News TRDRP UC Davis Tobacco Reporter Elevated Toxic Element Emissions from Popular Disposable E Cigarettes: Sources, Life Cycle, and Health Risks ACS Central Science New study finds disposable vaping devices more toxic than traditional cigarettes