Aerosol Research
Aerosol Research
Aerosol Research
Articles | Volume 3, issue 2
Articles | Volume 3, issue 2
https://doi.org/10.5194/ar-3-619-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ar-3-619-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 3, issue 2
Research article
 | 
08 Dec 2025
Research article |  | 08 Dec 2025

The evolution of carbon oxidation state during secondary organic aerosol formation from individual and mixed organic precursors

Yunqi Shao, Aristeidis Voliotis, Mao Du, Yu Wang, Thomas J. Bannan, Jacqueline F. Hamilton, M. Rami Alfarra, and Gordon McFiggans

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Latest update: 09 Oct 2026
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Short summary
This study analysed the average carbon oxidation state (OSc) during secondary organic aerosol formation from mixed volatile organic compounds (VOCs) using three mass spectrometry techniques. Notable discrepancies in OSc were observed across the techniques, with FIGAERO-CIMS reporting higher values. The results also show that OSc in mixed-VOC systems is influenced not only by products from individual precursors but also by accretion products formed through interactions between VOC products.
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