Articles | Volume 20, issue 2
https://doi.org/10.5194/acp-20-865-2020
https://doi.org/10.5194/acp-20-865-2020
Research article
 | 
23 Jan 2020
Research article |  | 23 Jan 2020

Distinct diurnal variation in organic aerosol hygroscopicity and its relationship with oxygenated organic aerosol

Ye Kuang, Yao He, Wanyun Xu, Pusheng Zhao, Yafang Cheng, Gang Zhao, Jiangchuan Tao, Nan Ma, Hang Su, Yanyan Zhang, Jiayin Sun, Peng Cheng, Wenda Yang, Shaobin Zhang, Cheng Wu, Yele Sun, and Chunsheng Zhao

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Latest update: 28 May 2024
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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.
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