1. pi-numerics, Neumarkt amW., 5202, Austria
2. Chemistry and Physics of Materials, University of Salzburg, A-5020, Austria
3. Institute for Atmospheric and Earth System Research/Physics, University of Helsinki, 00560 Helsinki, Finland
4. Division of Nuclear Physics, Department of Physics, Lund University, P. O. Box 118, 221 00 Lund, Sweden
5. Aerosol Physics Laboratory, Tampere University, 33720 Tampere, Finland
6. Department of Chemistry, University of Helsinki, 00014 Helsinki, Finland
7. Department of Chemistry, Nanoscience Center, University of Jyväskylä, FI-40014 Jyväskylä, Finland
8. Department of Atmospheric Sciences, University of Washington, Seattle, WA, USA
9. SMHI/Swedish Meteorological and Hydrological Institute Research Department, Unit of Meteorology/Environment and Climate, SE-601 76 Norrköping, Sweden
10. Atmospheric Modelling Centre Lahti, Niemenkatu 73, Lahti University Campus, 15140 Lahti, Finland
11. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, 100084 Beijing, China
12. Climate and Marine Sciences Department, Eurasia Institute of Earth Sciences, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey
13. School of Engineering Science, Lappeenranta-Lahti University of Technology, 53851 Lappeenranta, Finland