Articles | Volume 19, issue 15
Atmos. Chem. Phys., 19, 10319–10334, 2019
https://doi.org/10.5194/acp-19-10319-2019

Special issue: Regional transport and transformation of air pollution in...

Atmos. Chem. Phys., 19, 10319–10334, 2019
https://doi.org/10.5194/acp-19-10319-2019

Research article 14 Aug 2019

Research article | 14 Aug 2019

Distinctions in source regions and formation mechanisms of secondary aerosol in Beijing from summer to winter

Jing Duan et al.

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Latest update: 16 Apr 2021
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Short summary
We present the seasonal distinction of secondary aerosol formation in urban Beijing. Both photochemical oxidation and aqueous-phase processing played important roles in SOA (secondary organic aerosol) formation during all three seasons; while for sulfate formation, gas-phase photochemical oxidation was the major pathway in late summer, aqueous-phase reactions were more responsible during early winter, and both processes had contributions during autumn.
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