Experimental investigation of ion–ion recombination under atmospheric conditions

Franchin, A.; Ehrhart, S.; Leppä, J.; Nieminen, T.; Gagné, S.; Schobesberger, S.; Wimmer, D.; Duplissy, J.; Riccobono, F.; Dunne, E. M.; Rondo, L.; Downard, A.; Bianchi, F.; Kupc, A.; Tsagkogeorgas, G.; Lehtipalo, K.; Manninen, H. E.; Almeida, J.; Amorim, A.; Wagner, P. E.; Hansel, A.; Kirkby, J.; Kürten, A.; Donahue, N. M.; Makhmutov, V.; Mathot, S.; Metzger, A.; Petäjä, T.; Schnitzhofer, R.; Sipilä, M.; Stozhkov, Y.; Tomé, A.; Kerminen, V.-M.; Carslaw, K.; Curtius, J.; Baltensperger, U.; Kulmala, M.

doi:https://doi.org/10.5194/acp-15-7203-2015

Articles | Volume 15, issue 13

Atmos. Chem. Phys., 15, 7203–7216, 2015

https://doi.org/10.5194/acp-15-7203-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

Atmos. Chem. Phys., 15, 7203–7216, 2015

https://doi.org/10.5194/acp-15-7203-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 13

Research article 01 Jul 2015

Research article | 01 Jul 2015

Experimental investigation of ion–ion recombination under atmospheric conditions

A. Franchin et al.

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Final revised paper (published on 01 Jul 2015)
Preprint (discussion started on 09 Feb 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC C829: 'Revision', Anonymous Referee #1, 16 Mar 2015
- AC C2638: 'Answer to Referee#1', A. Franchin, 15 May 2015
RC C1033: 'Review comments', Anonymous Referee #2, 24 Mar 2015
- AC C2639: 'Answer to Referee#2', A. Franchin, 15 May 2015

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by A. Franchin on behalf of the Authors (18 May 2015) Author's response

ED: Publish as is (26 May 2015) by John H. Seinfeld

Short summary

The ion-ion recombination coefficient was measured at different temperatures, relative humidities and concentrations of ozone and sulfur dioxide. The experiments were carried out using the CLOUD chamber at CERN. We observed a strong dependency on temperature and on relative humidity, which has not been reported previously. No dependency of the ion-ion recombination coefficient on ozone concentration was observed and a weak variation with sulfur dioxide concentration was also observed.