1. Department of Science and Environmental Studies The Education University of Hong Kong Tai Po N.T., Hong Kong SAR China
2. School of Environment South China Normal University Guangzhou China
3. College of Geography and Environmental Sciences Zhejiang Normal University Jinhua China
4. Catalan Institute for Water Research, the Catalan Autonomous Government within the framework of the Research Centers Network Program Scientific and Technological Park of the University of Girona Girona Spain
5. Water and Soil Quality Research Group, Department of Environmental Chemistry Institute of Environmental Assessment and Water Research Barcelona Spain