In addition, a variety of substances that are known to be toxic, carcinogenic, or disease-causing have been identified in vaping liquid solutions and aerosols, including delivery solvents, flavorings, carbonyl compounds, minor tobacco alkaloids, tobacco-specific nitrosamines, reactive oxygen species, metals, and other toxicants
[27] Evans-Reeves K, Lauber K, Hiscock R
Nicotine poisoning in your cat can occur through either ingestion or absorption of a tobacco or nicotine product, like cigarettes, cigars, chewing tobacco, e-cigarette juice, nicotine patches, and nicotine gum or candy
Even if they dont cause death, cigarette butts can reduce the ability of certain aquatic organisms to reproduce or feed