Articles | Volume 15, issue 11
Atmos. Chem. Phys., 15, 6305–6322, 2015
https://doi.org/10.5194/acp-15-6305-2015
Atmos. Chem. Phys., 15, 6305–6322, 2015
https://doi.org/10.5194/acp-15-6305-2015
Research article
10 Jun 2015
Research article | 10 Jun 2015

Connecting the solubility and CCN activation of complex organic aerosols: a theoretical study using solubility distributions

I. Riipinen et al.

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Short summary
Atmospheric organic aerosol is complex and thus a challenge to model. We introduce a theoretical framework (solubility distributions) to represent the solubility of multicomponent mixtures. Using the framework, we evaluate the commonly made assumptions about the cloud condensation nucleus (CCN) activity of organic mixtures. We find that material with water solubilities larger than 0.1-100 g/L can usually be treated as completely soluble, which simplifies the treatment of organic CCN.
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