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Journal Article

Human transport of thirdhand tobacco smoke: A prominent source of hazardous air pollutants into indoor nonsmoking environments

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Stönner,  Christof
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Klüpfel,  Thomas
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Williams,  Jonathan
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Sheu, R., Stönner, C., Ditto, J. C., Klüpfel, T., Williams, J., & Gentner, D. R. (2020). Human transport of thirdhand tobacco smoke: A prominent source of hazardous air pollutants into indoor nonsmoking environments. Science Advances, 6(10): eaay4109. doi:10.1126/sciadv.aay4109.


Cite as: https://hdl.handle.net/21.11116/0000-0006-CED0-7
Abstract
The contamination of indoor nonsmoking environments with thirdhand smoke (THS) is an important, poorly understood public health concern. Real-time THS off-gassing from smokers into a nonsmoking movie theater was observed with online and offline high-resolution mass spectrometry. Prominent emission events of THS tracers (e.g., 2,5-dimethylfuran, 2-methylfuran, and acetonitrile) and other tobacco-related volatile organic compounds (VOCs) coincided with the arrival of certain moviegoers and left residual contamination. These VOC emission events exposed occupants to the equivalent of 1 to 10 cigarettes of secondhand smoke, including multiple hazardous air pollutants (e.g., benzene and formaldehyde) at parts-per-billion concentrations. Nicotine and related intermediate-volatility nitrogen-containing compounds, which vaporized from clothes/bodies and recondensed onto aerosol, comprised 34% of observed functionalized organic aerosol abundance. Exposure to THS VOC emission events will be considerably enhanced in poorly ventilated or smaller spaces in contrast with a large, well-ventilated theater-amplifying concentrations and potential impacts on health and indoor chemistry.