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After four days, half the fish had died, showing that cigarette butts seep in into the aquatic environment and are toxic and deadly to living creatures, says Thomas Novotny, emeritus professor of global health at San Diego State University, who was involved in the study

And, come 2026, a major U.S

Participants were recruited into the studies after purchasing a JUUL System Starter Kit in 2018, and completed recurring online surveys over the course of 12 months

Nicotine emissions from electronic cigarettes: Individual and interactive effects of propylene glycol to vegetable glycerin composition and device power output