Articles | Volume 19, issue 9
Atmos. Chem. Phys., 19, 6481–6495, 2019
https://doi.org/10.5194/acp-19-6481-2019
Atmos. Chem. Phys., 19, 6481–6495, 2019
https://doi.org/10.5194/acp-19-6481-2019

Research article 16 May 2019

Research article | 16 May 2019

Assessment of dicarbonyl contributions to secondary organic aerosols over China using RAMS-CMAQ

Jialin Li et al.

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Short summary
There are large uncertainties in the sources of secondary organic aerosol (SOA). Simulations of SOA concentrations in China with aqueous SOA formation pathway updated and glyoxal simulation improved reveal that dicarbonyl-derived SOA (AAQ) can explain a significant fraction of the unaccounted SOA sources. The mean AAQ can contribute 60.6 % and 64.5 % to the total concentration of SOA in summer and fall, respectively.
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