The effect of acid-base clustering and ions on the growth of atmospheric nano-particles

Autor(en)

Katrianne Lehtipalo, Linda Rondo, Jenni Kontkanen, Siegfried Schobesberger, Tuija Jokinen, Nina Sarnela, Andreas Kuerten, Sebastian Ehrhart, Alessandro Franchin, Tuomo Nieminen, Francesco Riccobono, Mikko Sipila, Taina Yli-Juuti, Jonathan Duplissy, Alexey Adamov, Lars Ahlm, Joao Almeida, Antonio Amorim, Federico Bianchi, Martin Breitenlechner, Josef Dommen, Andrew J. Downard, Eimear M. Dunne, Richard C. Flagan, Roberto Guida, Jani Hakala, Armin Hansel, Werner Jud, Juha Kangasluoma, Veli-Matti Kerminen, Helmi Keskinen, Jaeseok Kim, Jasper Kirkby, Agnieszka Kupc, Oona Kupiainen-Maatta, Ari Laaksonen, Michael J. Lawler, Markus Leiminger, Serge Mathot, Tinja Olenius, Ismael K. Ortega, Antti Onnela, Tuukka Petaja, Arnaud Praplan, Matti P. Rissanen, Taina Ruuskanen, Filipe D. Santos, Simon Schallhart, Ralf Schnitzhofer, Mario Simon, James N. Smith, Jasmin Trostl, Georgios Tsagkogeorgas, Antonio Tome, Petri Vaattovaara, Hanna Vehkamaki, Aron E. Vrtala, Paul E. Wagner, Christina Williamson, Daniela Wimmer, Paul M. Winkler, Annele Virtanen, Neil M. Donahue, Kenneth S. Carslaw, Urs Baltensperger, Ilona Riipinen, Joachim Curtius, Douglas R. Worsnop, Markku Kulmala

Abstrakt

The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to understand how particles grow in the atmosphere. Insufficient experimental data has impeded a profound understanding of nano-particle growth under atmospheric conditions. Here we study nano-particle growth in the CLOUD (Cosmics Leaving OUtdoors Droplets) chamber, starting from the formation of molecular clusters. We present measured growth rates at sub-3 nm sizes with different atmospherically relevant concentrations of sulphuric acid, water, ammonia and dimethylamine. We find that atmospheric ions and small acid-base clusters, which are not generally accounted for in the measurement of sulphuric acid vapour, can participate in the growth process, leading to enhanced growth rates. The availability of compounds capable of stabilizing sulphuric acid clusters governs the magnitude of these effects and thus the exact growth mechanism. We bring these observations into a coherent framework and discuss their significance in the atmosphere.

Organisation(en)

Aerosolphysik und Umweltphysik

Externe Organisation(en)

University of Helsinki, Paul Scherrer Institute, Johann Wolfgang Goethe-Universität Frankfurt am Main, European Organization for Nuclear Research (CERN), JRC - European Commission Joint Research Centre Ispra, University of Eastern Finland, Stockholm University, Universidade de Lisboa, Universidade da Beira Interior, Eidgenössische Technische Hochschule Zürich, Leopold-Franzens-Universität Innsbruck, California Institute of Technology (Caltech), University of Leeds, Finnish Meteorological Institute, IONICON Analytik GmbH, Korea Institute of Ocean Science & Technology (KIOST), University of California, Irvine, Leibniz-Institut für Troposphärenforschung, University of Colorado, Boulder, National Oceanic and Atmospheric Administration, Carnegie Mellon University, Aerodyne Res Inc

Journal

Nature Communications

Band

7

Anzahl der Seiten

9

ISSN

2041-1723

DOI

https://doi.org/10.1038/ncomms11594

Publikationsdatum

05-2016

Peer-reviewed

Ja

ÖFOS 2012

103039 Aerosolphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Physik und Astronomie, Allgemeine Chemie, Allgemeine Biochemie, Genetik und Molekularbiologie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/99340437-66c9-477a-87ee-60da53b3562a