Ms. Duan got her PhD degree from University of Science and Technology of Beijing & China National Environmental Monitoring Center (CNEMC) in 2005. Dr. Duan is associate professor of the Department of Environmental Pollution and Health, Chinese Research Academy of Environmental Sciences (CRAES), Ministry of Environmental Protection (MEP). Her research interests cover, a) improving the accuracy of exposure measurement of environmental pollutants from environmental exposure, personal exposure to biomarkers; b) Human activity patterns survey and its application in exposure assessment and environmental health risk assessment. c) Environmental health risk assessment / management based policy and decision making. Currently, she is leading the first Chinese National Environmental Exposure Related Human Activity Patterns Survey. She has pubilshed more than 70 peer-reviewed papers and 4 Chinese books