Zhilin Guo, University of California Davis, Davis, CA, United States, Graham E Fogg, Univ California Davis, Davis, CA, United States, Christopher Vincent Henri, University of California, Davis, Davis, CA, United States, Yong Zhang, Department of Geological Sciences, University of Alabama, Tuscaloosa, AL, United States and Chunmiao Zheng, Southern University of Science and Technology, Shenzhen, China, School of Environmental Science and Engineering and Shenzhen Key Laboratory of Soil and Groundwater Pollution Control, Shenzhen, China