Articles | Volume 22, issue 18
https://doi.org/10.5194/acp-22-12525-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-12525-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Sep 2022
Research article |
| 26 Sep 2022
| 26 Sep 2022
Radical chemistry in the Pearl River Delta: observations and modeling of OH and HO2 radicals in Shenzhen in 2018
Xinping Yang
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Xuefei Ma
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Yue Gao
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Zhaofeng Tan
Institute of Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Jülich GmbH, Jülich, Germany
Haichao Wang
School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, China
Xiaorui Chen
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Xiaofeng Huang
Laboratory of Atmospheric Observation Supersite, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
Lingyan He
Laboratory of Atmospheric Observation Supersite, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
Mengxue Tang
Laboratory of Atmospheric Observation Supersite, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
Laboratory of Atmospheric Observation Supersite, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
Shiyi Chen
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Huabin Dong
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Limin Zeng
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
Yuanhang Zhang
CORRESPONDING AUTHOR
State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
State Environmental Protection Key Laboratory of Atmospheric Ozone Pollution Control, Peking University, Beijing, China
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Short summary
We present the OH and HO2 radical observations at the Shenzhen site (Pearl River Delta, China) in the autumn of 2018. The diurnal maxima were 4.5 × 106 cm−3 for OH and 4.2 × 108 cm−3 for HO2 (including an estimated interference of 23 %–28 % from RO2 radicals during the daytime). The OH underestimation was identified again, and it was attributable to the missing OH sources. HO2 heterogeneous uptake, ROx sources and sinks, and the atmospheric oxidation capacity were evaluated as well.
We present the OH and HO2 radical observations at the Shenzhen site (Pearl River Delta, China)...
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