Articles | Volume 20, issue 19
https://doi.org/10.5194/acp-20-11245-2020
© 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-20-11245-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
02 Oct 2020
Research article |
| 02 Oct 2020
| 02 Oct 2020
Hygroscopicity of urban aerosols and its link to size-resolved chemical composition during spring and summer in Seoul, Korea
Najin Kim
Department of Atmosphere Sciences, Yonsei University, Seoul, 03722,
Korea
currently at: Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, 55128, Germany
Department of Atmosphere Sciences, Yonsei University, Seoul, 03722,
Korea
Minsu Park
Department of Atmosphere Sciences, Yonsei University, Seoul, 03722,
Korea
Jong Sung Park
Air Quality Research Division, National Institute of Environment
Research, Incheon, 22689, Korea
Hye Jung Shin
Air Quality Research Division, National Institute of Environment
Research, Incheon, 22689, Korea
Joon Young Ahn
Air Quality Research Division, National Institute of Environment
Research, Incheon, 22689, Korea
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Short summary
Chemical effects on the size-resolved hygroscopicity of urban aerosols were examined based on the KORUS-AQ field campaign data (HTDMA and HR-ToF-AMS). The size-resolved chemical composition data were found to be critical in explaining the size-dependent hygroscopicity, as well as the diurnal variation of κ for small particles. Aerosol mixing state information was associated with the size-resolved chemical composition data to reveal chemical information of different hygroscopicity modes.
Chemical effects on the size-resolved hygroscopicity of urban aerosols were examined based on...
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