Qingyang Liu received B.Sc. and M.Sc. degrees from Shandong University, in 2006 and 2009, and a Ph.D. degree from Chinese Academy of Sciences, in 2014. He was a visiting professor at University of Wisconsin-Madison from 2016 to 2017. He is an Associate Professor at the College of Ecology and Environment at Nanjing Forestry University (Nanjing, China). His research interests mainly focus on air pollution, health effects, source apportionment, and climate change.