Indoor Emission, Oxidation, and New Particle Formation of Personal Care Product 
Related Volatile Organic Compounds: Occurrence, Fate, and Transport of 
Contaminants in Indoor Air and Atmosphere

Wu, Tianren; Müller, Tatjana; Wang, Nijing; Byron, Joseph; Langer, Sarka; Williams, Jonathan; Licina, Dusan

doi:10.1021/acs.estlett.4c00353

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Indoor Emission, Oxidation, and New Particle Formation of Personal Care Product Related Volatile Organic Compounds: Occurrence, Fate, and Transport of Contaminants in Indoor Air and Atmosphere

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

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https://doi.org/10.1021/acs.estlett.4c00353
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Citation

Wu, T., Müller, T., Wang, N., Byron, J., Langer, S., Williams, J., et al. (2024). Indoor Emission, Oxidation, and New Particle Formation of Personal Care Product Related Volatile Organic Compounds: Occurrence, Fate, and Transport of Contaminants in Indoor Air and Atmosphere. Environmental science & technology letters / American Chemical Society, 11. doi:10.1021/acs.estlett.4c00353.

Cite as: https://hdl.handle.net/21.11116/0000-000F-CD08-2

Abstract

Personal care products (PCPs) contain diverse volatile organic compounds (VOCs) and routine use of PCPs indoors has important implications for indoor air quality and human chemical exposures. This chamber study deployed aerosol instrumentation and two online mass spectrometers to quantify VOC emissions from the indoor use of five fragranced PCPs and examined the formation of gas-phase oxidation products and particles upon ozone-initiated oxidation of reactive VOCs. The tested PCPs include a perfume, a roll-on deodorant, a body spray, a hair spray, and a hand lotion. Indoor use of these PCPs emitted over 200 VOCs and resulted in indoor VOC mixing ratios of several parts per million. The VOC emission factors for the PCPs varied from 2 to 964 mg g–1. We identified strong emissions of terpenes and their derivatives, which are likely used as fragrant additives in the PCPs. When using the PCPs in the presence of indoor ozone, these reactive VOCs underwent oxidation reactions to form a variety of gas-phase oxidized vapors and led to rapid new particle formation (NPF) events with particle growth rates up to ten times higher than outdoor atmospheric NPF events. The resulting ultrafine particle concentrations reach ∼34000 to ∼200000 cm–3 during the NPF events.