Articles | Volume 22, issue 17
Atmos. Chem. Phys., 22, 11239–11253, 2022
https://doi.org/10.5194/acp-22-11239-2022
Atmos. Chem. Phys., 22, 11239–11253, 2022
https://doi.org/10.5194/acp-22-11239-2022
Research article
02 Sep 2022
Research article | 02 Sep 2022

Chemical evolution of secondary organic aerosol tracers during high-PM2.5 episodes at a suburban site in Hong Kong over 4 months of continuous measurement

Qiongqiong Wang 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-2022-302', Anonymous Referee #1, 17 May 2022
    • AC1: 'Reply on RC1', Jian Zhen Yu, 04 Aug 2022
  • CC1: 'Comment on acp-2022-302', Deepchandra Srivastava, 02 Aug 2022
    • AC2: 'Reply on CC1', Jian Zhen Yu, 04 Aug 2022
  • RC2: 'Comment on acp-2022-302', Deepchandra Srivastava, 04 Aug 2022
    • AC3: 'Reply on RC2', Jian Zhen Yu, 04 Aug 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jian Zhen Yu on behalf of the Authors (08 Aug 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to minor revisions (review by editor) (17 Aug 2022) by Dara Salcedo
AR by Jian Zhen Yu on behalf of the Authors (18 Aug 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (18 Aug 2022) by Dara Salcedo
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Short summary
Secondary organic aerosol (SOA) is often enhanced during fine-particulate-matter (PM2.5) episodes. We examined bi-hourly measurements of SOA molecular tracers in suburban Hong Kong during 11 city-wide PM2.5 episodes. The tracers showed regional characteristics for both anthropogenic and biogenic SOA as well as biomass-burning-derived SOA. Multiple tracers of the same precursor revealed the dominance of low-NOx formation pathways for isoprene SOA and less-aged monoterpene SOA during winter.
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