Articles | Volume 18, issue 22
Atmos. Chem. Phys., 18, 16419–16437, 2018
https://doi.org/10.5194/acp-18-16419-2018

Special issue: Multiphase chemistry of secondary aerosol formation under...

Atmos. Chem. Phys., 18, 16419–16437, 2018
https://doi.org/10.5194/acp-18-16419-2018
Research article
20 Nov 2018
Research article | 20 Nov 2018

The size-resolved cloud condensation nuclei (CCN) activity and its prediction based on aerosol hygroscopicity and composition in the Pearl Delta River (PRD) region during wintertime 2014

Mingfu Cai et al.

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Latest update: 27 Nov 2022
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Short summary
Cloud condensation nuclei (CCN) play a critical role in cloud formation which affects solar radiation and climate. We employed advanced instruments to measure aerosol hygroscopicity and chemical composition and used them to predict CCN activity. Our results found that the CCN activity was largely dependent on the hygroscopicity parameter and the surface tension of the particles. Our study highlights the need for evaluating the effects of organics in order to accurately predict CCN activity.
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