Wintertime photochemistry in Beijing: observations of RO<sub><i>x</i></sub> radical concentrations in the North China Plain during the BEST-ONE campaign

Tan, Zhaofeng; Rohrer, Franz; Lu, Keding; Ma, Xuefei; Bohn, Birger; Broch, Sebastian; Dong, Huabin; Fuchs, Hendrik; Gkatzelis, Georgios I.; Hofzumahaus, Andreas; Holland, Frank; Li, Xin; Liu, Ying; Liu, Yuhan; Novelli, Anna; Shao, Min; Wang, Haichao; Wu, Yusheng; Zeng, Limin; Hu, Min; Kiendler-Scharr, Astrid; Wahner, Andreas; Zhang, Yuanhang

doi:https://doi.org/10.5194/acp-18-12391-2018

Articles | Volume 18, issue 16

https://doi.org/10.5194/acp-18-12391-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-12391-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 16

Research article

|

27 Aug 2018

Research article |

| 27 Aug 2018

Wintertime photochemistry in Beijing: observations of RO_x radical concentrations in the North China Plain during the BEST-ONE campaign

Zhaofeng Tan, Franz Rohrer, Keding Lu, Xuefei Ma, Birger Bohn, Sebastian Broch, Huabin Dong, Hendrik Fuchs, Georgios I. Gkatzelis, Andreas Hofzumahaus, Frank Holland, Xin Li, Ying Liu, Yuhan Liu, Anna Novelli, Min Shao, Haichao Wang, Yusheng Wu, Limin Zeng, Min Hu, Astrid Kiendler-Scharr, Andreas Wahner, and Yuanhang Zhang

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Preprint (discussion started on 09 Apr 2018)

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Status: closed

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

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RC1: 'Review of Tan et al.', Anonymous Referee #1, 08 May 2018
- AC1: 'Reply to comments', Keding Lu, 28 Jun 2018
RC2: 'Review of “Wintertime photochemistry in Beijing…” by Tan et al.', Anonymous Referee #2, 20 May 2018
- AC2: 'Reply to comments', Keding Lu, 28 Jun 2018

Peer-review completion

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

AR by Keding Lu on behalf of the Authors (28 Jun 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (01 Jul 2018) by Steven Brown

RR by Anonymous Referee #1 (19 Jul 2018)

ED: Publish subject to minor revisions (review by editor) (20 Jul 2018) by Steven Brown

AR by Keding Lu on behalf of the Authors (24 Jul 2018) Author's response Manuscript

ED: Publish as is (04 Aug 2018) by Steven Brown

AR by Keding Lu on behalf of the Authors (05 Aug 2018) Manuscript

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Short summary

We present the first wintertime OH, HO₂, and RO₂ measurements in Beijing, China. OH concentrations are nearly 2-fold larger than those observed in foreign cities during wintertime. The high OH and large OH reactivities indicate photochemical processes can be effective even during wintertime. A box model largely underestimated HO₂ and RO₂ concentrations during pollution episodes correlated with high NO_x, indicating a deficit current chemistry in the high NO_x regime.

Wintertime photochemistry in Beijing: observations of ROx radical concentrations in the North China Plain during the BEST-ONE campaign

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Interactive discussion

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Wintertime photochemistry in Beijing: observations of RO_x radical concentrations in the North China Plain during the BEST-ONE campaign