Dr. Sisi Liu mainly focuses on the fields of environmental behaviors, development and application of novel passive samplers. He got the Ph.D. in environmental engineering from Dalian University of Technology in 2018. Since then, he moved to South China Normal University (SCNU) for his postdoc. Currently, he is an associate professor at SCNU. Dr. Liu has published 18 papers (ten of them as the first author) in various international peer-reviewed journals, such as Environmental Science & Technology, Journal of Hazard Materials, Water Research, Science of the Total Environment, etc. He is leading research projects from the China Postdoctoral Science Foundation and the National Natural Science Foundation of China, etc. He also co-authored an assessment report on issues of concern (2020) for UNEP and participated in peer review activities of multiple SCI journals.