1. Wolfson Atmospheric Chemistry Laboratories, University of York, York YO10 5DD, United Kingdom
2. Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore
3. Campus for Research Excellence and Technological Enterprise (CREATE), Singapore 138602, Singapore
4. College of Environment and Ecology, Chongqing University, Chongqing 400044, China
5. School of Human Science and Environment, University of Hyogo, Hyogo 670-0092, Japan
6. Department of Atmospheric and Oceanic Sciences, School of Physics, and The Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT), Peking University, Beijing 100871, China