Articles | Volume 10, issue 21
Atmos. Chem. Phys., 10, 10561–10605, 2010
Atmos. Chem. Phys., 10, 10561–10605, 2010

  10 Nov 2010

10 Nov 2010

An overview of current issues in the uptake of atmospheric trace gases by aerosols and clouds

C. E. Kolb1, R. A. Cox2, J. P. D. Abbatt3, M. Ammann4, E. J. Davis5, D. J. Donaldson3, B. C. Garrett6, C. George7, P. T. Griffiths2, D. R. Hanson8, M. Kulmala9, G. McFiggans10, U. Pöschl11, I. Riipinen9, M. J. Rossi12, Y. Rudich13, P. E. Wagner14, P. M. Winkler14,15, D. R. Worsnop1,9, and C. D. O' Dowd16 C. E. Kolb et al.
  • 1Center for Aerosol and Cloud Chemistry, Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821-3976, USA
  • 2Centre for Atmospheric Science, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EP, UK
  • 3Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
  • 4Laboratory of Radiochemistry and Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
  • 5Department of Chemical Engineering, University of Washington, Seattle, WA 98195-1750, USA
  • 6Fundamental & Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA 99352, USA
  • 7IRCELYON, Institut de recherches sur la catalyse et l'environnement de Lyon, CNRS UMR 5256, Université Lyon 1. 2, Av. Albert Einstein, 69626 Villeurbanne Cedex, France
  • 8Augsburg College, Minneapolis, MN 55454, USA
  • 9Department of Physical Sciences, University of Helsinki, P.O. Box 64, 00014 Helsinki, Finland
  • 10Centre for Atmospheric Sciences, School of Earth, Atmospheric & Environmental Sciences, University of Manchester, Manchester, M13 9PL, UK
  • 11Biogeochemistry Department, Max Planck Institute for Chemistry, 55128 Mainz, Germany
  • 12Laboratorium fuer Atmosphaerenchemie, OFLA008, Paul Scherrer Institute, 5232 Villigen, Switzerland
  • 13Department of Environmental Sciences, Weizmann Institute, Rehovot 76100, Israel
  • 14Faculty of Physics, University of Vienna, 1090 Vienna, Austria
  • 15Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, CO 80305-5602, USA
  • 16School of Physics and Centre for Climate & Air Pollution Studies, National University of Ireland Galway, University Road, Galway, Ireland

Abstract. A workshop was held in the framework of the ACCENT (Atmospheric Composition Change – a European Network) Joint Research Programme on "Aerosols" and the Programme on "Access to Laboratory Data". The aim of the workshop was to hold "Gordon Conference" type discussion covering accommodation and reactive uptake of water vapour and trace pollutant gases on condensed phase atmospheric materials. The scope was to review and define the current state of knowledge of accommodation coefficients for water vapour on water droplet and ice surfaces, and uptake of trace gas species on a variety of different surfaces characteristic of the atmospheric condensed phase particulate matter and cloud droplets. Twenty-six scientists participated in this meeting through presentations, discussions and the development of a consensus review.

In this review we present an analysis of the state of knowledge on the thermal and mass accommodation coefficient for water vapour on aqueous droplets and ice and a survey of current state-of the-art of reactive uptake of trace gases on a range of liquid and solid atmospheric droplets and particles. The review recommends consistent definitions of the various parameters that are needed for quantitative representation of the range of gas/condensed surface kinetic processes important for the atmosphere and identifies topics that require additional research.

Final-revised paper