1. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, 100084, Beijing, China
2. Joint International Research Laboratory of Atmospheric and Earth System Research, School of Atmospheric Sciences, Nanjing University, Nanjing, China
3. Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, 00014, Helsinki, Finland
4. Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029, Beijing, China
5. State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, China
6. Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Hong Kong SAR, China
7. Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, USA
8. Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA