Dr. Xingru Li is the Deputy Director and Master’s Supervisor of the Department of Chemistry, Analytical and Testing Center, Capital Normal University. She holds a Bachelor’s Degree in Environmental Science from Northeast Normal University, a Master’s Degree in Environmental Chemistry from Beijing Normal University, and a Doctorate in Atmospheric Physics and Atmospheric Environment from the Institute of Atmospheric Physics, Chinese Academy of Sciences. She is a Postdoctoral Fellow at East China Normal University and a Visiting Scholar at Texas A&M University. Her research interests include observation of aerosol chemical properties, sources and formation mechanisms of fine particles, and coordinated control of O3 and PM2.5. She presided over a National Natural Science Foundation project, a sub-project of the Strategic Priority Research Program of the Chinese Academy of Sciences, a Beijing Science and Technology Plan project, and a Beijing Science and Technology Commission project, and she participated in a project on the causes and control of severe air pollution. She has published more than 60 academic papers, including 24 SCI papers. She won the first prize of the Beijing Science and Technology Progress Award in 2019 (ranked 10th).