Meng Wang is a Research Assistant Professor at the Hong Kong Polytechnic University (PolyU). She obtained her Ph.D. degree (2020) in Environmental Science from the Institute of Earth Environment, Chinese Academy of Sciences. Before joining PolyU as a Research Assistant Professor in 2022, she worked as a Postdoctoral Research Fellow at PolyU from 2021 to 2022. Her current research interests focus on signatures and spatiotemporal variation in organic tracers in urban and rural areas; characterization and source apportionment of organic compounds in PM2.5 based on different mass spectrometry methods (e.g., AMS; CIMS; EESI; GC-MS, and HPLS-MS); and machine learning techniques to decouple the effect of meteorology and evaluate the effectiveness of air pollution control policies.