Chemical Transformation of Vaping Emissions under Indoor Atmospheric Aging Processes.

ABSTRACT: E-cigarette emissions, which contain a variety of hazardous compounds, contribute significantly to indoor air pollution and raise concerns about secondhand exposure to vaping byproducts. Compared to fresh vape emissions, our understanding of chemically aged products in indoor environments remains incomplete. Terpenes are commonly used as flavoring agents in e-liquids, which have the ability to react with the dominant indoor oxidant ozone (O₃) to produce reactive oxygenated byproducts and result in new particle formation. In this study, mixtures of propylene glycol (PG), vegetable glycerin (VG), and terpenes as e-liquids were injected into a 2 m³ FEP chamber to simulate the indoor aging process. 100 ppbv O₃ was introduced into the chamber and allowed to reac

SUBMITTER: Tian L 

PROVIDER: S-EPMC11837212 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature