1. Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
2. Aerosol Physics Laboratory, Faculty of Engineering and Natural Sciences, Tampere University, Tampere 33014, Finland
3. Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, Frankfurt am Main 60438, Germany
4. Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki 00014, Finland
5. School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China
6. Department of Chemistry, University of Helsinki, Helsinki 00014, Finland
7. Aerodyne Research, Inc., Billerica, Massachusetts 01821, United States
8. CERN, the European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland
9. Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing 210023, China
10. Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
11. Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States