Cigarette butts are among the types of litter most commonly found in nature. During our Clean-Up events, one third of the waste collected is cigarette butts. Worldwide, 4.5 trillion cigarette butts¹ are thrown into the environment. And given their small size, they can be carried for thousands of kilometers by wind and waterways. A cigarette butt thrown in a Swiss mountain can therefore end up in an ocean.

This situation is particularly problematic given their toxicity. In fact, it is estimated that a cigarette butt contains around 5,000 chemical compounds, including more than 150 substances² recognized as toxic to the environment. Among them are arsenic, nicotine, polycyclic aromatic hydrocarbons (PAHs), and heavy metals. In addition, the cigarette filter is mainly made of cellulose acetate, a synthetic polymer that is poorly biodegradable³, which can remain in nature for several years.

Ces substances polluent les sols et les eaux. Les filtres se fragmentent sous l’effet de la lumière et s’accumulent dans l’environnement sous forme de microplastiques, particulièrement dans les milieux aquatiques. Les substances toxiques se relâchent dans l’environnement au contact de l’eau. Un seul mégot de cigarette peut contaminer jusqu’à 1 000 litres d’eau⁴ !

Cette pollution a des impacts négatifs sur la biodiversité⁵, surtout pour les écosystèmes aquatiques. Une étude a conclu qu’un mégot peut tuer la moitié des poissons de petite taille vivant dans 1 litre d’eau⁶. De plus, une partie des substances toxiques est bioaccumulable et peut se retrouver dans notre alimentation.

Alors, que faire ? Même si la meilleure solution est de ne pas fumer du tout, voici quelques conseils pour éviter que les mégots de cigarettes ne deviennent une source de pollution :

• Dispose of your cigarette butts only in bins or ashtrays provided for this purpose in resorts, at ski lifts, and in restaurants.
• Use a portable ashtray, such as the Ecobox offered by Summit Foundation.
• Keep your cigarette butts with you until you can dispose of them properly.

Together, let’s act for a clean mountain free of cigarette butts.

1. Tiny But Deadly: Your Butt on Plastic - Earth Day. https://www.earthday.org/tiny-but-deadly-your-butt-on-plastic/
2. Araújo, M. C. B., & Costa, M. F. (2019). From Plant to Waste: The Long and Diverse Impact Chain Caused by Tobacco Smoking. International Journal of Environmental Research and Public Health, 16(15), 2690. https://doi.org/10.3390/ijerph16152690
3. Vanapalli, K.R. et al. (2023). Cigarettes butt littering: The story of the world’s most littered item from the perspective of pollution, remedial actions, and policy measures. Journal of Hazardous Materials, 453, 131387. https://doi.org/10.1016/j.jhazmat.2023.131387
4. Centre Ecotox. (2019). Zigarettenstummel (PDF). https://www.centreecotox.ch/media/194908/2019_zigarettenstummel_fr.pdf
5. Beutel, M.W.; Harmon, T.C.; Novotny, T.E.; Mock, J.; Gilmore, M.E.; Hart, S.C.; Traina, S.; Duttagupta, S.; Brooks, A.; Jerde, C.L.; et al. (2021). A Review of Environmental Pollution from the Use and Disposal of Cigarettes and Electronic Cigarettes: Contaminants, Sources, and Impacts. Sustainability, 13, 12994. https://doi.org/10.3390/su132312994
6. Slaughter, E.; Gersberg, R.M.; Watanabe, K.; et al. (2011). Toxicity of cigarette butts, and their chemical components, to marine and freshwater fish. Tobacco Control, 20(Suppl 1), i25-i29. https://tobaccocontrol.bmj.com/content/20/Suppl_1/i25