1. Beijing Advanced Innovation Center for Soft Matter Science and Engineering Aerosol and Haze Laboratory Beijing University of Chemical Technology Beijing China
2. Institute for Atmospheric and Earth System Research/Physics Faculty of Science University of Helsinki Helsinki Finland
3. School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing China
4. Department of Environmental Science & Engineering Fudan University Shanghai China
5. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control Nanjing University of Information Science & Technology Nanjing China
6. Center for Atmospheric Particle Studies Carnegie Mellon University Pittsburgh PA USA
7. Research Center for Eco‐Environmental Sciences Chinese Academy of Science Beijing China
8. School of Environmental Sciences Peking University Beijing China
9. Institute of Chemistry Chinese Academy of Sciences Beijing China
10. Laboratory of Environmental Physics Institute of Physics University of Tartu Tartu Estonia
11. Finnish Meteorological Institute Helsinki Finland
12. Laboratory of Atmospheric Chemistry Paul Scherrer Institute (PSI) Villigen Switzerland
13. Aerosol Physics Laboratory Physics Unit Tampere University Tampere Finland
14. School of Atmospheric Sciences Joint International Research Laboratory of Atmospheric and Earth System Sciences Nanjing University Nanjing China
15. Aerodyne Research Inc. Billerica MA USA