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Volume 17, issue 19 | Copyright

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

Atmos. Chem. Phys., 17, 11727-11777, 2017
https://doi.org/10.5194/acp-17-11727-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Review article 05 Oct 2017

Review article | 05 Oct 2017

Heterogeneous reactions of mineral dust aerosol: implications for tropospheric oxidation capacity

Mingjin Tang1, Xin Huang2, Keding Lu3, Maofa Ge4, Yongjie Li5, Peng Cheng6, Tong Zhu3, Aijun Ding2, Yuanhang Zhang3, Sasho Gligorovski1, Wei Song1, Xiang Ding1, Xinhui Bi1, and Xinming Wang1,7 Mingjin Tang et al.
  • 1State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
  • 2Joint International Research Laboratory of Atmospheric and Earth System Sciences (JirLATEST), School of Atmospheric Sciences, Nanjing University, Nanjing, China
  • 3State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, China
  • 4Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China
  • 5Department of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Avenida da Universidade, Taipa, Macau, China
  • 6Institute of Mass Spectrometer and Atmospheric Environment, Jinan University, Guangzhou, China
  • 7Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China

Abstract. Heterogeneous reactions of mineral dust aerosol with trace gases in the atmosphere could directly and indirectly affect tropospheric oxidation capacity, in addition to aerosol composition and physicochemical properties. In this article we provide a comprehensive and critical review of laboratory studies of heterogeneous uptake of OH, NO3, O3, and their directly related species as well (including HO2, H2O2, HCHO, HONO, and N2O5) by mineral dust particles. The atmospheric importance of heterogeneous uptake as sinks for these species is assessed (i) by comparing their lifetimes with respect to heterogeneous reactions with mineral dust to lifetimes with respect to other major loss processes and (ii) by discussing relevant field and modeling studies. We have also outlined major open questions and challenges in laboratory studies of heterogeneous uptake by mineral dust and discussed research strategies to address them in order to better understand the effects of heterogeneous reactions with mineral dust on tropospheric oxidation capacity.

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We provide a comprehensive and critical review of laboratory studies of heterogeneous uptake of OH, NO3, O3, and their directly related species by mineral dust particles. The atmospheric importance of heterogeneous uptake as sinks for these species is also assessed. In addition, we have outlined major open questions and challenges in this field and discussed research strategies to address them.
We provide a comprehensive and critical review of laboratory studies of heterogeneous uptake of...
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