Articles | Volume 17, issue 4
Atmos. Chem. Phys., 17, 2613–2629, 2017
https://doi.org/10.5194/acp-17-2613-2017
Atmos. Chem. Phys., 17, 2613–2629, 2017
https://doi.org/10.5194/acp-17-2613-2017

Research article 21 Feb 2017

Research article | 21 Feb 2017

Chemical characterization of atmospheric ions at the high altitude research station Jungfraujoch (Switzerland)

Carla Frege et al.

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Latest update: 25 Jul 2021
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We present measurements of the chemical composition of atmospheric ions at high altitude (3450 m a.s.l.) during a 9-month campaign. We detected remarkably high correlation between methanesulfonic acid (MSA) and SO5. Halogenated species were also detected frequently at this continental location. New-particle formation events occurred via the condensation of highly oxygenated molecules (HOMs) at very low sulfuric acid concentration or, less frequently, due to ammonia–sulfuric acid clusters.
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