Articles | Volume 19, issue 4
https://doi.org/10.5194/acp-19-2343-2019
https://doi.org/10.5194/acp-19-2343-2019
Research article
 | 
22 Feb 2019
Research article |  | 22 Feb 2019

Wintertime secondary organic aerosol formation in Beijing–Tianjin–Hebei (BTH): contributions of HONO sources and heterogeneous reactions

Li Xing, Jiarui Wu, Miriam Elser, Shengrui Tong, Suixin Liu, Xia Li, Lang Liu, Junji Cao, Jiamao Zhou, Imad El-Haddad, Rujin Huang, Maofa Ge, Xuexi Tie, André S. H. Prévôt, and Guohui Li

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AR by Guohui Li on behalf of the Authors (03 Jan 2019)  Author's response   Manuscript 
ED: Referee Nomination & Report Request started (08 Jan 2019) by Jian Wang
RR by Anonymous Referee #2 (02 Feb 2019)
ED: Publish as is (03 Feb 2019) by Jian Wang
AR by Guohui Li on behalf of the Authors (10 Feb 2019)
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Short summary
We used the WRF-CHEM model to simulate wintertime secondary organic aerosol (SOA) concentrations over Beijing–Tianjin–Hebei (BTH), China. Heterogeneous HONO sources increased the near-surface SOA by 46.3 % in BTH. Direct emissions of glyoxal and methylglyoxal from residential sources contributed 25.5 % to the total SOA mass. Our study highlights the importance of heterogeneous HONO sources and primary residential emissions of glyoxal and methylglyoxal to SOA formation in winter over BTH.
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