Prof/Dr. Nan Liu, M. D., received doctorate degree from Academy of Military Medical Science, Beijing, China in 2009, mainly engaged in the development of environment and health. He has served the army for almost 15 years in 2003-2017. Now, he is in charge of Department of Science and Education and Institute of Environment and Health in South China Hospital; he is also appointed as a doctoral supervisor in Shenzhen University from Apr. 2020, the Distinguished Professor in Zhengzhou University in Nov. 2019 and Distinguished Scholar of Yellow River in Henan University in Jul. 2019. His research areas are including: molecular network regulation mechanism of chronic injury induced by combined exposure of environmental pollutants, key technologies for monitoring and assessment of environmental and health risk factors and rapid determination of chemical pollutants, etc. He has taken charge of a variety of national scientific projects including: the National 863 plan young scientist project, National Natural Science Foundation projects (4 items). He has published over 100 papers including 50 first and corresponding author.