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Measuring Composition & Growth of Ion Clusters of Sulfuric Acid, Ammonia, Amines & Oxidized Organics as First Steps of Nucleation in the CLOUD Experiment

Schobesberger, Siegfried and Praplan, Arnaud P. and Junninen, Heikki and Bianchi, Federico and Lönn, Gustaf and Ehn, Mikael and Lehtipalo, Katrianne and Dommen, Josef and Ehrhart, Sebastian and Franchin, Alessandro and Ortega, Ismael K. and Riccobono, Francesco and Duplissy, Jonathan and Rissanen, Matti P. and Sipilä, Mikko and Petäjä, Tuukka and Kulmala, Markku and Donahue, Neil M. and Worsnop, Douglas R. (2013) Measuring Composition & Growth of Ion Clusters of Sulfuric Acid, Ammonia, Amines & Oxidized Organics as First Steps of Nucleation in the CLOUD Experiment. In: Nucleation and Atmospheric Aerosols. AIP Conference Proceedings. No.1527. American Institute of Physics , Melville, NY, pp. 298-301. ISBN 978-0-7354-1152-4.

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The mechanisms behind the nucleation of vapors forming new particles in the atmosphere had been proven difficult to establish. One main aim of the CLOUD experiment was to explore in detail these first steps of atmospheric new particle formation by performing extremely well controlled laboratory experiments. We examined nucleation and growth in the presence of different mixtures of vapors, including sulfuric acid, ammonia, dimethylamine, and oxidation products of pinanediol or α-pinene. Among the employed state-of-the-art instrumentation, a high-resolution mass spectrometer that directly sampled negatively charged ions and clusters proved particularly useful. We were able to resolve most of the chemical compositions found for charged sub-2nm clusters and to observe their growth in time. These compositions reflected the mixture of condensable vapors in the chamber and the role of each individual vapor in forming sub-2nm clusters could be explored. By inter-comparing between individual experiments and ambient observations, we try to establish which vapors participate in nucleation in the actual atmosphere, and how.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Bianchi, Federico0000-0003-2996-3604
Ehn, Mikael0000-0002-0215-4893
Rissanen, Matti P.0000-0003-0463-8098
Worsnop, Douglas R.0000-0002-8928-8017
Additional Information:© 2013 AIP Publishing LLC. Published online 24 May 2013. CERN’s support of CLOUD by providing technical and financial resources and a particle beam from the CERN Proton Synchrotron is gratefully acknowledged. This research has received funding from the EC Seventh Framework Programme (Marie Curie Initial Training Network "CLOUD-ITN" no. 215072, MC-ITN "CLOUDTRAIN" no. 316662, and ERC-Advanced "ATMNUCLE'' grant no. 227463), the German Federal Ministry of Education and Research (project nos. 01LK0902A and 01LK1222A), the Swiss National Science Foundation (project nos. 200020_135307 and 206620_130527), the Academy of Finland (Center of Excellence project no. 1118615), the Academy of Finland (135054, 133872, 251427, 139656, 139995, 137749, 141217, 141451), the Finnish Funding Agency for Technology and Innovation, the Nessling Foundation, the Austrian Science Fund (FWF; project no. P19546 and L593), the Portuguese Foundation for Science and Technology (project no. CERN/FP/116387/2010), the Swedish Research Council, Vetenskapsrå̊det (grant 2011-5120), the Presidium of the Russian Academy of Sciences and Russian Foundation for Basic Research (grants 08-02-91006-CERN and 12-02-91522-CERN), and the U.S. National Science Foundation (grants AGS1136479 and CHE1012293).
Funding AgencyGrant Number
Marie Curie Fellowship215072
Marie Curie Fellowship316662
European Research Council (ERC)227463
Bundesministerium für Bildung und Forschung (BMBF)01LK0902A
Bundesministerium für Bildung und Forschung (BMBF)01LK1222A
Swiss National Science Foundation (SNSF)200020_135307
Swiss National Science Foundation (SNSF)206620_130527
Academy of Finland1118615
Academy of Finland135054
Academy of Finland133872
Academy of Finland251427
Academy of Finland139995
Academy of Finland137749
Academy of Finland141217
Academy of Finland141451
Finnish Funding Agency for Technology and InnovationUNSPECIFIED
Nessling FoundationUNSPECIFIED
FWF Der WissenschaftsfondsP19546
FWF Der WissenschaftsfondsL593
Fundação para a Ciência e a Tecnologia (FCT)CERN/FP/116387/2010
Swedish Research CouncilUNSPECIFIED
Russian Academy of SciencesUNSPECIFIED
Russian Foundation for Basic Research08-02-91006-CERN
Russian Foundation for Basic Research12-02-91522-CERN
Subject Keywords:clusters, ions, nucleation, mass spectrometry, CLOUD, oxidized organics
Series Name:AIP Conference Proceedings
Issue or Number:1527
Classification Code:PACS: 36.40.Wa, 36.40.-c, 34.50.Gb, 34.50.-s, 82.80.Rt, 82.60.Nh, 82.70.Rr, 92.60.Mt
Record Number:CaltechAUTHORS:20160422-075856839
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66392
Deposited By: Ruth Sustaita
Deposited On:22 Apr 2016 16:35
Last Modified:09 Mar 2020 13:19

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