Measurement report: Effects of photochemical aging on the formation and evolution of summertime secondary aerosol in Beijing

Chen, Tianzeng; Liu, Jun; Ma, Qingxin; Chu, Biwu; Zhang, Peng; Ma, Jinzhu; Liu, Yongchun; Zhong, Cheng; Liu, Pengfei; Wang, Yafei; Mu, Yujing; He, Hong

doi:https://doi.org/10.5194/acp-21-1341-2021

Articles | Volume 21, issue 2

https://doi.org/10.5194/acp-21-1341-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-21-1341-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 21, issue 2

Measurement report

|

01 Feb 2021

Measurement report |

| 01 Feb 2021

Measurement report: Effects of photochemical aging on the formation and evolution of summertime secondary aerosol in Beijing

Tianzeng Chen, Jun Liu, Qingxin Ma, Biwu Chu, Peng Zhang, Jinzhu Ma, Yongchun Liu, Cheng Zhong, Pengfei Liu, Yafei Wang, Yujing Mu, and Hong He

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Final revised paper (published on 01 Feb 2021)
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Preprint (discussion started on 25 Aug 2020)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of Chen et al.', Anonymous Referee #1, 13 Sep 2020
- AC1: 'Responses to Referee #1’s comments', Qingxin Ma, 30 Nov 2020
RC2: 'Review of Chen et al.', Anonymous Referee #2, 28 Sep 2020
- AC2: 'Responses to Referee #2’s comments', Qingxin Ma, 30 Nov 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Referee Nomination & Report Request started (08 Dec 2020) by Roya Bahreini

RR by Anonymous Referee #2 (09 Dec 2020)

RR by Anonymous Referee #1 (18 Dec 2020)

ED: Publish as is (23 Dec 2020) by Roya Bahreini

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Short summary

Effects of photochemical aging on the formation and evolution of summertime secondary aerosol were systematically investigated in a suburb of Beijing. Higher PM₁ concentration accompanied longer photochemical age (t_a). Sulfate and more-oxidized OOA formation were significantly sensitive to the increase in t_a, and their contributions were greatly enhanced at elevated t_a levels. Our results suggested that photochemical aging process played a crucial role in PM₁ and O₃ pollution in summertime.