Nitrate-driven urban haze pollution during summertime over the North China Plain

Li, Haiyan; Zhang, Qiang; Zheng, Bo; Chen, Chunrong; Wu, Nana; Guo, Hongyu; Zhang, Yuxuan; Zheng, Yixuan; Li, Xin; He, Kebin

doi:https://doi.org/10.5194/acp-18-5293-2018

Articles | Volume 18, issue 8

https://doi.org/10.5194/acp-18-5293-2018

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

Special issue:

Multiphase chemistry of secondary aerosol formation under...

https://doi.org/10.5194/acp-18-5293-2018

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

Articles | Volume 18, issue 8

Research article

|

19 Apr 2018

Research article |

| 19 Apr 2018

Nitrate-driven urban haze pollution during summertime over the North China Plain

Haiyan Li, Qiang Zhang, Bo Zheng, Chunrong Chen, Nana Wu, Hongyu Guo, Yuxuan Zhang, Yixuan Zheng, Xin Li, and Kebin He

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Final revised paper (published on 19 Apr 2018)
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Preprint (discussion started on 02 Jan 2018)
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Interactive discussion

Status: closed

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

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RC1: 'Review of Li et al.', Anonymous Referee #2, 29 Jan 2018
RC2: 'comments for acp-2017-1156', Anonymous Referee #1, 14 Feb 2018
AC1: 'Response to referees comments', Haiyan Li, 24 Mar 2018

Peer-review completion

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

AR by Haiyan Li on behalf of the Authors (24 Mar 2018) Author's response Manuscript

ED: Publish as is (29 Mar 2018) by Aijun Ding

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Short summary

This study revealed the driving role of nitrate in urban haze development in the North China Plain (NCP) during summertime. Several factors favoring the rapid nitrate formation were investigated in detail. The higher concentration and, in particular, the higher contribution of nitrate in PM₁ suggest an urgent need to initiate ammonia emission control measures and further reduce NO_x emissions over the NCP region.