Articles | Volume 19, issue 10
Atmos. Chem. Phys., 19, 7129–7150, 2019
https://doi.org/10.5194/acp-19-7129-2019
Atmos. Chem. Phys., 19, 7129–7150, 2019
https://doi.org/10.5194/acp-19-7129-2019

Research article 29 May 2019

Research article | 29 May 2019

Experimental budgets of OH, HO2, and RO2 radicals and implications for ozone formation in the Pearl River Delta in China 2014

Zhaofeng Tan et al.

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Latest update: 01 Aug 2021
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Short summary
Atmospheric OH, HO2, and RO2 radicals; OH reactivity; and trace gases measured in the Pearl River Delta in autumn 2014 are used for radical budget analyses. The RO2 budget suggests that unexplained OH reactivity is due to unmeasured volatile organic compounds. The OH budget points to a missing OH source and that of RO2 to a missing RO2 sink at low NO. This could indicate a common, unknown process that converts RO2 to OH without the involvement of NO, which would reduce ozone production by 30 %.
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