Juan Hong¹, Hanbing Xu², Haobo Tan³, Changqing Yin³, Hao Liqing⁴, Fei Li³, Mingfu Cai⁵, Xuejiao Deng³, Nan Wang³, Hang Su⁶, Yafang Cheng⁶, Lin Wang⁷, Tuukka Petäjä⁸ and Veli-Matti Kerminen⁸, (1)Institute for Environmental and Climate Research, Jinan University, Guangzhou, China, (2)Sun Yat-Sen University, Shared experimental education center, Guangzhou, China, (3)Institute of Tropical and Marine Meteorology/Guangdong Provincial Key Laboratory of Regional Numerical Weather Prediction, Guangzhou, China, (4)University of Eastern Finland, Kuopio, Finland, (5)Sun Yat-sen University, School of Atmospheric Sciences, Guangzhou, China, (6)Max Planck Institute for Chemistry, Multiphase Chemistry Department, Mainz, Germany, (7)Fudan University, Shanghai, China, (8)University of Helsinki, Helsinki, Finland