Articles | Volume 24, issue 20
https://doi.org/10.5194/acp-24-11717-2024
https://doi.org/10.5194/acp-24-11717-2024
Research article
 | 
21 Oct 2024
Research article |  | 21 Oct 2024

Predicting hygroscopic growth of organosulfur aerosol particles using COSMOtherm

Zijun Li, Angela Buchholz, and Noora Hyttinen

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Cited articles

Bain, A., Chan, M. N., and Bzdek, B. R.: Physical properties of short chain aqueous organosulfate aerosol, Environ. Sci. Atmos., 3, 1365–1373, https://doi.org/10.1039/D3EA00088E, 2023. a, b, c
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Berndt, T., Hoffmann, E. H., Tilgner, A., Stratmann, F., and Herrmann, H.: Direct sulfuric acid formation from the gas-phase oxidation of reduced-sulfur compounds, Nat. Commun., 14, 4849, https://doi.org/10.1038/s41467-023-40586-2, 2023. a
Bezantakos, S., Huang, L., Barmpounis, K., Martin, S. T., and Biskos, G.: Relative humidity non-uniformities in hygroscopic tandem differential mobility analyzer measurements, J. Aerosol Sci., 101, 1–9, https://doi.org/10.1016/j.jaerosci.2016.07.004, 2016. a
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Evaluating organosulfur (OS) hygroscopicity is important for assessing aerosol–cloud climate interactions in the post-fossil-fuel future, when SO2 emissions decrease and OS compounds become increasingly important. Here a state-of-the-art quantum-chemistry-based method was used to predict the hygroscopic growth factors (HGFs) of a group of atmospherically relevant OS compounds and their mixtures with (NH4)2SO4. A good agreement was observed between their model-estimated and experimental HGFs.
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