I have heard that throwing a cigarette butt in a water makes 1 cubic meter of water toxic. Can't provide a source though - someone told me that when sailing tog

I have heard that throwing a cigarette butt in a water makes 1 cubic meter of water toxic. Can't provide a source though - someone told me that when sailing together. Toxicity of cigarette butts, and their chemical components, to marine and freshwater fish[1] [1] - https://tobaccocontrol.bmj.com/content/20/Suppl_1/i25 https://tobaccocontrol.bmj.com/content/20/Suppl_1/i25