1. Biogeochemistry & Environmental Quality Research Group, Clemson University, Clemson, South Carolina 29442, United States
2. Water Management & Hydrological Science, Texas A&M University, College Station, Texas 77843, United States
3. Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China
4. State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China