Articles | Volume 18, issue 16
https://doi.org/10.5194/acp-18-12391-2018
© Author(s) 2018. 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-18-12391-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Aug 2018
Research article |
| 27 Aug 2018
| 27 Aug 2018
Wintertime photochemistry in Beijing: observations of ROx radical concentrations in the North China Plain during the BEST-ONE campaign
Zhaofeng Tan
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Franz Rohrer
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Xuefei Ma
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Birger Bohn
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Sebastian Broch
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Huabin Dong
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Hendrik Fuchs
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Georgios I. Gkatzelis
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Andreas Hofzumahaus
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Frank Holland
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Yuhan Liu
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Anna Novelli
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Min Shao
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Haichao Wang
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Yusheng Wu
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
now at: Department of Physics, University of Helsinki, Helsinki,
Finland
Limin Zeng
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Beijing Innovation Center for Engineering Sciences and
Advanced Technology, Peking University, Beijing, China
Astrid Kiendler-Scharr
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Andreas Wahner
Institute of Energy and Climate Research, IEK-8: Troposphere,
Forschungszentrum Jülich GmbH, Jülich, Germany
Yuanhang Zhang
CORRESPONDING AUTHOR
College of Environmental Sciences and Engineering, Peking University,
Beijing, China
Beijing Innovation Center for Engineering Sciences and
Advanced Technology, Peking University, Beijing, China
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Latest update: 30 Nov 2025
Short summary
We present the first wintertime OH, HO2, and RO2 measurements in Beijing, China. OH concentrations are nearly 2-fold larger than those observed in foreign cities during wintertime. The high OH and large OH reactivities indicate photochemical processes can be effective even during wintertime. A box model largely underestimated HO2 and RO2 concentrations during pollution episodes correlated with high NOx, indicating a deficit current chemistry in the high NOx regime.
We present the first wintertime OH, HO2, and RO2 measurements in Beijing, China. OH...
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