Articles | Volume 19, issue 6
Atmos. Chem. Phys., 19, 3493–3513, 2019
https://doi.org/10.5194/acp-19-3493-2019

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

Atmos. Chem. Phys., 19, 3493–3513, 2019
https://doi.org/10.5194/acp-19-3493-2019

Research article 20 Mar 2019

Research article | 20 Mar 2019

Daytime atmospheric oxidation capacity in four Chinese megacities during the photochemically polluted season: a case study based on box model simulation

Zhaofeng Tan et al.

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Short summary
We evaluated the atmospheric oxidation capacity (AOC) in four Chinese megacities during photochemically polluted seasons. The chemical production of ozone and particle nitrate was diagnosed through a box model, which can be attributed to daytime radical chemistry. Our work highlights that the formation of both ozone and fine particles is largely driven by the atmospheric radical chemistry in China. Consequently, we suggest future pollution mitigation strategies should consider the role of AOC.
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