Articles | Volume 18, issue 8
Atmos. Chem. Phys., 18, 5921–5930, 2018
https://doi.org/10.5194/acp-18-5921-2018
Atmos. Chem. Phys., 18, 5921–5930, 2018
https://doi.org/10.5194/acp-18-5921-2018

Research article 27 Apr 2018

Research article | 27 Apr 2018

Experimental study of H2SO4 aerosol nucleation at high ionization levels

Maja Tomicic et al.

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Cited articles

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Benson, D. R., Yu, J. H., Markovich, A., and Lee, S.-H.: Ternary homogeneous nucleation of H2SO4, NH3, and H2O under conditions relevant to the lower troposphere, Atmos. Chem. Phys., 11, 4755–4766, https://doi.org/10.5194/acp-11-4755-2011, 2011. a
Berndt, T., Böge, O., and Stratmann, F.: Formation of atmospheric H2SO4/H2O particles in the absence of organics: A laboratory study, Geophys. Res. Lett., 33, L15817, https://doi.org/10.1029/2006GL026660, 2006. a
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A supernova within a distance of about 100 pc from the Earth would increase the cosmic ray flux and thereby the atmospheric ionization. We study the impact of high ion concentrations on aerosol nucleation through experiments. The measurements show that nucleation increases by up to an order of magnitude when the ionization increases from background to supernova levels under fixed concentrations of the nucleating gas. This suggests that a supernova could influence the atmospheric microphysics.
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