Articles | Volume 16, issue 3
Atmos. Chem. Phys., 16, 1693–1712, 2016
https://doi.org/10.5194/acp-16-1693-2016

Special issue: BACCHUS – Impact of Biogenic versus Anthropogenic emissions...

Special issue: The CERN CLOUD experiment (ACP/AMT inter-journal SI)

Atmos. Chem. Phys., 16, 1693–1712, 2016
https://doi.org/10.5194/acp-16-1693-2016

Research article 12 Feb 2016

Research article | 12 Feb 2016

Aqueous phase oxidation of sulphur dioxide by ozone in cloud droplets

C. R. Hoyle et al.

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Short summary
A significant portion of sulphate, an important constituent of atmospheric aerosols, is formed via the aqueous phase oxidation of sulphur dioxide by ozone. The rate of this reaction has previously only been measured over a relatively small temperature range. Here, we use the state of the art CLOUD chamber at CERN to perform the first measurements of this reaction rate in super-cooled droplets, confirming that the existing extrapolation of the reaction rate to sub-zero temperatures is accurate.
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