Articles | Volume 21, issue 14
https://doi.org/10.5194/acp-21-11437-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-21-11437-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
29 Jul 2021
Research article |
| 29 Jul 2021
| 29 Jul 2021
Atmospheric gaseous hydrochloric and hydrobromic acid in urban Beijing, China: detection, source identification and potential atmospheric impacts
Xiaolong Fan
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Jing Cai
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Jian Zhao
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Yishuo Guo
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Chang Li
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Kaspar R. Dällenbach
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Feixue Zheng
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Zhuohui Lin
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
State Key Joint Laboratory of Environment Simulation and Pollution
Control, Research Center for Eco-Environmental Sciences, Chinese Academy of
Sciences, Beijing 100085, China
Center for Excellence in Regional Atmospheric Environment,
Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021,
China
Yonghong Wang
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Lubna Dada
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Qiaozhi Zha
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Jenni Kontkanen
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Theo Kurtén
Department of Chemistry, University of Helsinki, Helsinki 00014, Finland
Siddhart Iyer
Aerosol Physics Laboratory, Physics Unit, Tampere University,
Tampere 33100, Finland
Joni T. Kujansuu
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Tuukka Petäjä
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Douglas R. Worsnop
Aerodyne Research Inc., Billerica, Massachusetts 01821, USA
Veli-Matti Kerminen
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Yongchun Liu
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Federico Bianchi
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082,
China
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Markku Kulmala
Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for
Soft Matter Science and Engineering, Beijing University of Chemical
Technology, Beijing 100089, China
Institute for Atmospheric and Earth System Research (Physics), Faculty of Science, University of Helsinki, Helsinki 00560, Finland
Joint International Research Laboratory of Atmospheric and Earth
System Sciences (JirLATEST), Nanjing University, Nanjing 210023, China
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Latest update: 07 Nov 2025
Short summary
We observed significant concentrations of gaseous HBr and HCl throughout the winter and springtime in urban Beijing, China. Our results indicate that gaseous HCl and HBr are most likely originated from anthropogenic emissions such as burning activities, and the gas–aerosol partitioning may play a crucial role in contributing to the gaseous HCl and HBr. These observations suggest that there is an important recycling pathway of halogen species in inland megacities.
We observed significant concentrations of gaseous HBr and HCl throughout the winter and...
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