UC Davis study: Disposable vapes may be more toxic than cigarettes Disposable vapes may look harmless but inside are batteries, plastics, and toxic residues. When discarded incorrectly, they add to fire risk, pollution, and the growing e waste challenge. Responsible handling starts with Kids Health Info : Vaping and e cigarettes Nicotine vape devices are now accepted for safe disposal at the @Iowa City Landfill & Recycling Center's Hazardous Material Collection Facility. Vape devices contain toxic nicotine and lithium ion batteries. Improper disposal of Disposable vapes are more toxic than cigarettes, contain lead: Study New study finds disposable vaping devices more toxic than traditional cigarettes