Articles | Volume 19, issue 19
Atmos. Chem. Phys., 19, 12163–12174, 2019
https://doi.org/10.5194/acp-19-12163-2019
Atmos. Chem. Phys., 19, 12163–12174, 2019
https://doi.org/10.5194/acp-19-12163-2019

Research article 01 Oct 2019

Research article | 01 Oct 2019

Interactions between aerosol organic components and liquid water content during haze episodes in Beijing

Xiaoxiao Li et al.

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Short summary
Aerosol liquid water is ubiquitous in ambient aerosol. Using long-term aerosol chemical composition to model the aerosol water in Beijing, we found that water absorbed by organics contributes a significant fraction to the total aerosol water. We emphasize the hygroscopicity of organics is highly variable and should be taken into consideration in modelling. A positive feedback loop between organic hygroscopicity and aerosol water was found as one of the driving factors of severe haze in Beijing.
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