Seasonal variations in high time-resolved chemical compositions, sources, and evolution of atmospheric submicron aerosols in the megacity Beijing

Hu, Wei; Hu, Min; Hu, Wei-Wei; Zheng, Jing; Chen, Chen; Wu, Yusheng; Guo, Song

doi:https://doi.org/10.5194/acp-17-9979-2017

Articles | Volume 17, issue 16

https://doi.org/10.5194/acp-17-9979-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-9979-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 16

Research article

|

25 Aug 2017

Research article |

| 25 Aug 2017

Seasonal variations in high time-resolved chemical compositions, sources, and evolution of atmospheric submicron aerosols in the megacity Beijing

Wei Hu, Min Hu, Wei-Wei Hu, Jing Zheng, Chen Chen, Yusheng Wu, and Song Guo

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Final revised paper (published on 25 Aug 2017)
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Preprint (discussion started on 16 Feb 2017)
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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', Anonymous Referee #1, 23 Mar 2017
RC2: 'review', Anonymous Referee #2, 24 Mar 2017
RC3: 'see attached', Anonymous Referee #3, 01 Apr 2017
AC1: 'Response to Referees' comments on acp-2017-115 by Wei Hu et al.', Min Hu, 25 Jun 2017

Peer-review completion

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

AR by Min Hu on behalf of the Authors (25 Jun 2017) Author's response Manuscript

ED: Referee Nomination & Report Request started (08 Jul 2017) by Jason Surratt

RR by Anonymous Referee #2 (19 Jul 2017)

ED: Reconsider after minor revisions (Editor review) (24 Jul 2017) by Jason Surratt

AR by Min Hu on behalf of the Authors (25 Jul 2017) Author's response Manuscript

ED: Publish as is (26 Jul 2017) by Jason Surratt

AR by Min Hu on behalf of the Authors (27 Jul 2017)

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Short summary

Seasonal changes in chemical compositions, sources, and evolution for submicron aerosols in the megacity Beijing were investigated based on high-resolution AMS measurements. Carbonaceous fraction (OA+BC) constituted over 50 % of PM₁ in autumn due to primary emissions, while SNA contributed 60 % to PM1 in other seasons. Secondary components (OOA+SNA) contributed ~ 60–80 % to PM1, suggesting that secondary formation played an important role in PM pollution. OA was in a relatively high oxidation state.