Novel insights on new particle formation derived from a pan-european observing system.

• Dall'Osto M Institute of Marine Science, Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain. dallosto@icm.csic.es.
• Beddows DCS National Centre for Atmospheric Science Division of Environmental Health & Risk Management School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom.
• Asmi A Department of Physics, University of Helsinki, P.O. Box 64, 00014, Helsinki, Finland.
• Poulain L Leibniz Institute for Tropospheric Research, Permoserstr. 15, 04318, Leipzig, Germany.
• Hao L University of Eastern Finland, Department of Applied Physics, P.O.Box 1627, FIN-70211, Kuopio, Finland.
• Freney E Laboratoire de Météorologie Physique, CNRS-Université Blaise Pascal, UMR6016, 63117, Clermont, Ferrand, France.
• Allan JD School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Manchester, UK.
• Canagaratna M Aerodyne Research, Inc., Billerica, MA, USA.
• Crippa M Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232, PSI, Villigen, Switzerland.
• Bianchi F Department of Physics, University of Helsinki, P.O. Box 64, 00014, Helsinki, Finland.
• de Leeuw G Finnish Meteorological Institute, Climate Change Unit, P.O. Box 503, 00101, Helsinki, Finland.
• Eriksson A Division of Ergonomics and Aerosol Technology, Lund University, Box 118, SE-22100, Lund, Sweden.
• Swietlicki E Division of Nuclear Physics, Lund University, Box 118, SE-22100, Lund, Sweden.
• Hansson HC Department of Environmental Science and Analytical Chemistry, Stockholm University, 10691, Stockholm, Sweden.
• Henzing JS Netherlands Organisation for Applied Scientific Research TNO, Princetonlaan 6, 3508 TA, Utrecht, The Netherlands.
• Granier C Laboratoire d'Aérologie, Toulouse, France.
• Zemankova K Charles University, Faculty of Mathematics and Physics, Dept. of Atmospheric Physcis, Prague, Czechia.
• Laj P Department of Physics, University of Helsinki, P.O. Box 64, 00014, Helsinki, Finland.
• Onasch T Aerodyne Research, Inc., Billerica, MA, USA.
• Prevot A Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232, PSI, Villigen, Switzerland.
• Putaud JP European Commission, Joint Research Centre, Institute for Environment and Sustainability, 21027, (VA), Italy.
• Sellegri K Laboratoire de Météorologie Physique, CNRS-Université Blaise Pascal, UMR6016, 63117, Clermont, Ferrand, France.
• Vidal M Department of Evolutionary Biology, Ecology and Environmental Sciences, Universitat de Barcelona, Av. Diagonal 643, 08028, Barcelona, Catalonia, Spain.
• Virtanen A University of Eastern Finland, Department of Applied Physics, P.O.Box 1627, FIN-70211, Kuopio, Finland.
• Simo R Institute of Marine Science, Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain.
• Worsnop D Aerodyne Research, Inc., Billerica, MA, USA.
• O'Dowd C School of Physics, Centre for Climate & Air Pollution Studies, National University of Ireland Galway, University Road Galway, Galway, Ireland.
• Kulmala M Department of Physics, University of Helsinki, P.O. Box 64, 00014, Helsinki, Finland.
• Harrison RM National Centre for Atmospheric Science Division of Environmental Health & Risk Management School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom.

Multidisciplinary