Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing

Huang, Ru-Jin; He, Yao; Duan, Jing; Li, Yongjie; Chen, Qi; Zheng, Yan; Chen, Yang; Hu, Weiwei; Lin, Chunshui; Ni, Haiyan; Dai, Wenting; Cao, Junji; Wu, Yunfei; Zhang, Renjian; Xu, Wei; Ovadnevaite, Jurgita; Ceburnis, Darius; Hoffmann, Thorsten; O'Dowd, Colin D.

doi:https://doi.org/10.5194/acp-20-9101-2020

Articles | Volume 20, issue 14

https://doi.org/10.5194/acp-20-9101-2020

© Author(s) 2020. 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-20-9101-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 14

Research article

|

31 Jul 2020

Research article |

| 31 Jul 2020

Contrasting sources and processes of particulate species in haze days with low and high relative humidity in wintertime Beijing

Ru-Jin Huang, Yao He, Jing Duan, Yongjie Li, Qi Chen, Yan Zheng, Yang Chen, Weiwei Hu, Chunshui Lin, Haiyan Ni, Wenting Dai, Junji Cao, Yunfei Wu, Renjian Zhang, Wei Xu, Jurgita Ovadnevaite, Darius Ceburnis, Thorsten Hoffmann, and Colin D. O'Dowd

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Status: closed

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

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RC1: 'Comments', Anonymous Referee #1, 31 Mar 2020
RC2: 'Comments to acp-2020-158', Anonymous Referee #2, 31 Mar 2020
RC3: 'Comments on Huang et al', Anonymous Referee #3, 01 Apr 2020
AC1: 'Response to reviewers', Ru-Jin Huang, 08 Jun 2020

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

AR by Ru-Jin Huang on behalf of the Authors (08 Jun 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (23 Jun 2020) by Hang Su

RR by Anonymous Referee #3 (24 Jun 2020)

ED: Publish as is (24 Jun 2020) by Hang Su

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Short summary

We systematically compared the submicron particle (PM₁) processes in haze days with low and high relative humidity (RH) in wintertime Beijing. Nitrate had similar daytime growth rates in low-RH and high-RH pollution. OOA had a higher growth rate in low-RH pollution than in high-RH pollution. Sulfate had a decreasing trend in low-RH pollution, while it increased significantly in high-RH pollution. This distinction may be explained by the different processes affected by meteorological conditions.