Articles | Volume 20, issue 12
https://doi.org/10.5194/acp-20-7595-2020
https://doi.org/10.5194/acp-20-7595-2020
Research article
 | 
01 Jul 2020
Research article |  | 01 Jul 2020

Characterization of submicron particles by time-of-flight aerosol chemical speciation monitor (ToF-ACSM) during wintertime: aerosol composition, sources, and chemical processes in Guangzhou, China

Junchen Guo, Shengzhen Zhou, Mingfu Cai, Jun Zhao, Wei Song, Weixiong Zhao, Weiwei Hu, Yele Sun, Yao He, Chengqiang Yang, Xuezhe Xu, Zhisheng Zhang, Peng Cheng, Qi Fan, Jian Hang, Shaojia Fan, Xinming Wang, and Xuemei Wang

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AR by Shengzhen Zhou on behalf of the Authors (04 May 2020)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (06 May 2020) by Jian Wang
RR by Anonymous Referee #1 (06 May 2020)
ED: Publish as is (07 May 2020) by Jian Wang
AR by Shengzhen Zhou on behalf of the Authors (14 May 2020)  Manuscript 
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Short summary
We characterized non-refractory submicron particulate matter (PM1.0) during winter in Guangzhou, south China. Chemical composition and key sources of ambient PM1.0 are revealed, highlighting the significant role of SOA. The relationship with SOA and peroxy radicals indicated gas-phase oxidation contributed predominantly to SOA formation during non-pollution periods, while heterogeneous/multiphase reactions played more important roles in SOA formation during pollution periods.
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