Temporal variations in the hygroscopicity and mixing state of black carbon aerosols in a polluted megacity area

Li, Kangning; Ye, Xingnan; Pang, Hongwei; Lu, Xiaohui; Chen, Hong; Wang, Xiaofei; Yang, Xin; Chen, Jianmin; Chen, Yingjun

doi:https://doi.org/10.5194/acp-18-15201-2018

Articles | Volume 18, issue 20

Atmos. Chem. Phys., 18, 15201–15218, 2018

https://doi.org/10.5194/acp-18-15201-2018

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

Atmos. Chem. Phys., 18, 15201–15218, 2018

https://doi.org/10.5194/acp-18-15201-2018

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

Articles | Volume 18, issue 20

Research article

23 Oct 2018

Research article | 23 Oct 2018

Temporal variations in the hygroscopicity and mixing state of black carbon aerosols in a polluted megacity area

Kangning Li et al.

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Final revised paper (published on 23 Oct 2018)
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Preprint (discussion started on 25 Jun 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: 'Comment', Anonymous Referee #1, 03 Jul 2018
RC2: 'review', Anonymous Referee #2, 10 Aug 2018
AC1: 'Response to Reviews’ Comments', Xin Yang, 14 Sep 2018

Peer-review completion

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

AR by Xin Yang on behalf of the Authors (14 Sep 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (17 Sep 2018) by Markus Petters

RR by Anonymous Referee #2 (08 Oct 2018)

ED: Publish as is (08 Oct 2018) by Markus Petters

Short summary

Temporal variation in the hygroscopicity and its correlation with the mixing state of ambient BC particles were studied using a HTDMA–SP2 system. Secondary organic carbon formation and condensation of nitrates were mainly responsible for the changes of hygroscopicity of BC particles during daytime and nighttime, respectively. Different atmospheric aging processes led to the change of BC particles' mixing states, which play a fundamental role in determining their hygroscopicity.