Not-so-disposable e-cigarettes: Methods young people use to discard single-use e-cigarettes

To date, most tobacco product waste research focuses on cigarettes. Less is known about single-use 'disposable' e-cigarette waste, which contains several hazardous and toxic materials. This exploratory study examines self-reported methods for discarding disposables among a national sample of US adolescents and young adults.

Data were obtained from a weekly cross-sectional survey of US residents aged 15-24 years. The analytical sample consisted of data collected from November 2022 to August 2023 from respondents who reported past-30-day use of disposables (n = 1313). Weighted multinomial logistic regressions examined the association between tobacco use behaviors and respondents' primary self-reported method for discarding disposables (reference group: 'throw them in the regular trash'), controlling for socio-demographic variables.

Approximately half of respondents discarded their empty disposables in the regular trash (52.9%). On average, respondents reported throwing away 3.1 disposables monthly [95% confidence interval (CI) = 2.83, 3.29]. Second most commonly, respondents reported keeping or collecting empty disposables (21.4%). Respondents who reported 10-30 days (versus 1-9) of past-month vaping were more likely to primarily keep or collect disposable e-cigarettes (relative risk reduction = 1.64, 95% CI = 1.20, 2.24) compared to discarding in the trash.

Young people in the United States who use disposable e-cigarettes report primarily discarding their disposable e-cigarettes in the regular trash or keeping them. All reported disposal methods raise safety and environmental concerns.