Articles | Volume 22, issue 3
Atmos. Chem. Phys., 22, 1793–1809, 2022
https://doi.org/10.5194/acp-22-1793-2022
Atmos. Chem. Phys., 22, 1793–1809, 2022
https://doi.org/10.5194/acp-22-1793-2022

Research article 07 Feb 2022

Research article | 07 Feb 2022

Are reactive oxygen species (ROS) a suitable metric to predict toxicity of carbonaceous aerosol particles?

Zhi-Hui Zhang et al.

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-666', Anonymous Referee #1, 16 Sep 2021
    • AC1: 'Reply on RC1', Zhi-hui Zhang, 29 Nov 2021
  • RC2: 'Comment on acp-2021-666', Anonymous Referee #2, 21 Sep 2021
    • AC1: 'Reply on RC1', Zhi-hui Zhang, 29 Nov 2021
  • RC3: 'Comment on acp-2021-666', Anonymous Referee #3, 21 Sep 2021
    • AC1: 'Reply on RC1', Zhi-hui Zhang, 29 Nov 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Zhi-hui Zhang on behalf of the Authors (16 Dec 2021)  Author's response    Author's tracked changes
ED: Publish as is (01 Jan 2022) by Alexander Laskin
AR by Zhi-hui Zhang on behalf of the Authors (03 Jan 2022)  Author's response    Manuscript
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Short summary
Using a novel setup, we comprehensively characterized the formation of particle-bound reactive oxygen species (ROS) in anthropogenic and biogenic secondary organic aerosols (SOAs). We found that more than 90 % of all ROS components in both SOA types have a short lifetime. Our results also show that photochemical aging promotes particle-bound ROS production and enhances the oxidative potential of the aerosols. We found consistent results between chemical-based and biological-based ROS analyses.
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