1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
2. Center for Advances in Water and Air Quality, Lamar University, Beaumont, TX, USA
3. Department of Civil and Environmental Engineering, Lamar University, Beaumont, TX, USA
4. Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xian, China