Articles | Volume 23, issue 23
Research article
01 Dec 2023
Research article |  | 01 Dec 2023

Photochemical ageing of aerosols contributes significantly to the production of atmospheric formic acid

Yifan Jiang, Men Xia, Zhe Wang, Penggang Zheng, Yi Chen, and Tao Wang


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-1140', Anonymous Referee #1, 25 Jul 2023
    • AC1: 'Reply on RC1', Tao Wang, 07 Oct 2023
  • RC2: 'Comment on egusphere-2023-1140', Anonymous Referee #2, 26 Aug 2023
    • AC2: 'Reply on RC2', Tao Wang, 07 Oct 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Tao Wang on behalf of the Authors (07 Oct 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (12 Oct 2023) by Thorsten Bartels-Rausch
AR by Tao Wang on behalf of the Authors (21 Oct 2023)  Manuscript 
Short summary
This study provides the first estimate of high rates of formic acid (HCOOH) production from the photochemical aging of real ambient particles and demonstrates the potential importance of this pathway in the formation of HCOOH under ambient conditions. Incorporating this pathway significantly improved the performance of a widely used chemical model. Our solution irradiation experiments demonstrated the importance of nitrate photolysis in HCOOH production via the production of oxidants.
Final-revised paper