With more vapes getting thrown away every year, it's become a growing environmental problem. Vapes contain heavy metals, nicotine, and other chemicals, which leach toxic pollutants into the soil and waterways when UC Davis study: Disposable vapes may be more toxic than cigarettes Disposable vapes are creating piles of electronic waste 5 takeaways from the AP's report on Chinese disposable e cigarettes flooding the US market AP News Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health