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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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Ilona Riipinen on behalf of the Authors (15 Apr 2015)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (25 Apr 2015) by Athanasios Nenes
RR by Anonymous Referee #2 (10 May 2015)
ED: Publish as is (11 May 2015) by Athanasios Nenes
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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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