Topic: 電子菸氣溶膠及其產品廢棄物的動態化學和毒性
Speaker: 林穎萱 (Associate Professor of Department of Environmental Sciences, University of California, Riverside)
Time: March 27, 2025 1:30-3:00 pm
Venue: 醫學院 602 教室
Abstract: E-cigarette aerosols represent a complex mixture of gases and suspended particles or droplets that can linger in the air. Thermal transformation of e-liquid ingredients during vaping processes can result in the formation of toxic byproducts such as quinones, carbonyls, esters, and alkyl alcohols. The aging process in the surrounding environment can further transform the e-cigarette aerosols, leading to significant changes in their chemical composition and toxicity compared to freshly emitted aerosols. The dynamic changes in chemical composition and inhalation toxicity of e-liquids and e-cigarette aerosols in the indoor environment highlight the role of multifaceted factors in modulating the production of toxic chemicals and the consequent health effects. Further, improper disposal or littering of e-cigarette waste into the municipal solid waste can introduce these contaminants into the environment. This seminar will explore the dynamic chemistry and toxicity of e-cigarettes and their product waste from these perspectives.