1. School of Water and Environment, Chang’an University, Xi’an, China
2. Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology, Nanchang, China
3. Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of Ministry of Education, Chang’an University, Xi’an, China
4. Environmental Monitoring Center of Shaanxi Province, Xi’an, China