Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times UC Davis study: Disposable vapes may be more toxic than cigarettes Plastic Waste Digital Media Blog CYANOnline 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 Make lab tests for toxic vapes compulsory, urge Scottish Greens Scottish Greens Scientists astonished by highly toxic feature found in popular vape products: 'So high I thought our instrument was broken'