Contrasting size-resolved hygroscopicity of fine particles derived by HTDMA and HR-ToF-AMS measurements between summer and winter in Beijing: the impacts of aerosol aging and local emissions

Fan, Xinxin; Liu, Jieyao; Zhang, Fang; Chen, Lu; Collins, Don; Xu, Weiqi; Jin, Xiaoai; Ren, Jingye; Wang, Yuying; Wu, Hao; Li, Shangze; Sun, Yele; Li, Zhanqing

doi:https://doi.org/10.5194/acp-20-915-2020

Articles | Volume 20, issue 2

https://doi.org/10.5194/acp-20-915-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

In-depth study of air pollution sources and processes within...

https://doi.org/10.5194/acp-20-915-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 2

Research article

|

24 Jan 2020

Research article |

| 24 Jan 2020

Contrasting size-resolved hygroscopicity of fine particles derived by HTDMA and HR-ToF-AMS measurements between summer and winter in Beijing: the impacts of aerosol aging and local emissions

Xinxin Fan, Jieyao Liu, Fang Zhang, Lu Chen, Don Collins, Weiqi Xu, Xiaoai Jin, Jingye Ren, Yuying Wang, Hao Wu, Shangze Li, Yele Sun, and Zhanqing Li

Supplement

https://doi.org/10.5194/acp-20-915-2020-supplement

Data sets

HTDMA and HR-ToF-AMS Measured in situ Dataset in Winter of 2016 and Summer of 2017 at the Beijing Observation Station Xinxin Fan, Fang Zhang, Lu Chen, Don Collins, Weiqi Xu, Xiaoai Jin, Jingye Ren, Yuying Wang, Hao Wu, Shangze Li, Yele Sun, and Zhanqing Li https://doi.org/10.3974/geodb.2019.06.11.V1

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Short summary

Aerosol effects on visibility and climate are influenced by their hygroscopicity. By contrasting data from two techniques between summer and winter in Beijing, we investigate the effect of aerosol aging, mixing state, and local sources on its hygroscopicity. We revealed that inappropriate use of the density of BC and organics results in large uncertainty in calculating aerosols hygroscopicity. Our results are helpful for parameterization in models.