Articles | Volume 19, issue 4
Atmos. Chem. Phys., 19, 2343–2359, 2019
https://doi.org/10.5194/acp-19-2343-2019

Special issue: Multiphase chemistry of secondary aerosol formation under...

Atmos. Chem. Phys., 19, 2343–2359, 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 et al.

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Latest update: 19 Sep 2021
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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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