1. Bingham Research Center, Utah State University, Vernal, Utah 84078, United States
2. Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
3. Department of Natural Resources and Environmental Science, University of Nevada, Reno, Reno, Nevada 89557, United States
4. School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China