1. School of Energy and Environment, City University of Hong Kong, Hong Kong, China
2. Shenzhen Research Institute, City University of Hong Kong, Shenzhen 518057, China
3. Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou 510632, China
4. Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou 510632, China
5. Department of Architecture and Civil Engineering, City University of Hong Kong, Hong Kong, China