Articles | Volume 20, issue 2
https://doi.org/10.5194/acp-20-865-2020
© Author(s) 2020. 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-20-865-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Distinct diurnal variation in organic aerosol hygroscopicity and its relationship with oxygenated organic aerosol
Institute for Environmental and Climate Research, Jinan
University, Guangzhou 511443, China
Yao He
State Key Laboratory of Atmospheric Boundary Layer
Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese
Academy of Sciences, Beijing 100029, China
Wanyun Xu
State Key Laboratory of Severe Weather & Key
Laboratory for Atmospheric Chemistry, Institute of Atmospheric Composition,
Chinese Academy of Meteorological Sciences, Beijing 100081,
China
Pusheng Zhao
Institute of Urban Meteorology, China Meteorological
Administration, Beijing 100089, China
Yafang Cheng
Max Planck Institute for Chemistry, 55128 Mainz,
Germany
Gang Zhao
Department of Atmospheric and Oceanic Sciences, School of
Physics, Peking University, Beijing 100871, China
Jiangchuan Tao
Institute for Environmental and Climate Research, Jinan
University, Guangzhou 511443, China
Nan Ma
Institute for Environmental and Climate Research, Jinan
University, Guangzhou 511443, China
Max Planck Institute for Chemistry, 55128 Mainz,
Germany
Yanyan Zhang
Institute for Environmental and Climate Research, Jinan
University, Guangzhou 511443, China
Jiayin Sun
Institute of Mass Spectrometer and Atmospheric
Environment, Jinan University, Guangzhou 510632, China
Peng Cheng
Institute of Mass Spectrometer and Atmospheric
Environment, Jinan University, Guangzhou 510632, China
Wenda Yang
Institute of Mass Spectrometer and Atmospheric
Environment, Jinan University, Guangzhou 510632, China
Shaobin Zhang
Institute for Environmental and Climate Research, Jinan
University, Guangzhou 511443, China
Institute of Mass Spectrometer and Atmospheric
Environment, Jinan University, Guangzhou 510632, China
State Key Laboratory of Atmospheric Boundary Layer
Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese
Academy of Sciences, Beijing 100029, China
Chunsheng Zhao
Department of Atmospheric and Oceanic Sciences, School of
Physics, Peking University, Beijing 100871, China
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Latest update: 27 Nov 2025
Short summary
A new method was developed to calculate hygroscopicity parameter κ of organic aerosols (κOA) based on aerosol light-scattering measurements and bulk aerosol chemical-composition measurements. Derived high-time-resolution κOA varied in a wide range (near 0 to 0.25), and the organic aerosol oxidation degree significantly impacts variations in κOA. Distinct diurnal variation in κOA is found, and its relationship with oxygenated organic aerosol is discussed.
A new method was developed to calculate hygroscopicity parameter κ of organic aerosols (κOA)...
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