1. Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki00014, Finland
2. Department of Environmental Science and Bolin Centre for Climate Research, Stockholm University, StockholmSE-10691, Sweden
3. Aerosol Physics Laboratory, Physics Unit, Tampere University, Tampere33014, Finland
4. Department of Earth and Environmental Sciences and National Centre for Atmospheric Science (NCAS), University of Manchester, Oxford Road, ManchesterM13 9PL, U.K.
5. Univ Paris Est Créteil and Université Paris Cité, CNRS, LISA, Créteil, ParisF-94010, France
6. Laboratoire des Sciences du Climat et de l’Environnement (LSCE), Gif-sur-Yvette91191, France
7. Aerodyne Research Inc., Billerica, Massachusetts01821, United States
8. Institut National de l’Environnement Industriel et des Risques (INERIS), Verneuil-en-Halatte60550, France