Significant contrasts in aerosol acidity between China and the United States

Zhang, Bingqing; Shen, Huizhong; Liu, Pengfei; Guo, Hongyu; Hu, Yongtao; Chen, Yilin; Xie, Shaodong; Xi, Ziyan; Skipper, T. Nash; Russell, Armistead G.

doi:https://doi.org/10.5194/acp-21-8341-2021

Articles | Volume 21, issue 10

https://doi.org/10.5194/acp-21-8341-2021

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

https://doi.org/10.5194/acp-21-8341-2021

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

Articles | Volume 21, issue 10

Research article

|

01 Jun 2021

Research article |

| 01 Jun 2021

Significant contrasts in aerosol acidity between China and the United States

Bingqing Zhang, Huizhong Shen, Pengfei Liu, Hongyu Guo, Yongtao Hu, Yilin Chen, Shaodong Xie, Ziyan Xi, T. Nash Skipper, and Armistead G. Russell

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Final revised paper (published on 01 Jun 2021)
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Preprint (discussion started on 10 Sep 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 "significant contrasts in aerosol acidity between China and the United States" by Zhang et al.', Anonymous Referee #1, 18 Sep 2020
- AC1: 'Reply on RC1', Huizhong Shen, 17 Feb 2021
RC2: 'Referee report', Anonymous Referee #2, 15 Oct 2020
- AC2: 'Reply on RC2', Huizhong Shen, 17 Feb 2021

Peer-review completion

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

AR by Huizhong Shen on behalf of the Authors (18 Feb 2021) Author's response Author's tracked changes Manuscript

ED: Referee Nomination & Report Request started (18 Feb 2021) by Armin Sorooshian

RR by Anonymous Referee #2 (31 Mar 2021)

ED: Publish subject to minor revisions (review by editor) (14 Apr 2021) by Armin Sorooshian

AR by Huizhong Shen on behalf of the Authors (20 Apr 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (20 Apr 2021) by Armin Sorooshian

AR by Huizhong Shen on behalf of the Authors (29 Apr 2021) Manuscript

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Short summary

Extended ground-level measurements are coupled with model simulations to comprehensively compare the aerosol acidity in China and the United States. Aerosols in China are significantly less acidic than those in the United States, with pH values 1–2 units higher. Higher aerosol mass concentrations and the abundance of ammonia and ammonium in China, compared to the United States, are leading causes of the pH difference between these two countries.