1. CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
2. Department of Surface Waters-Research and Management; Eawag, Swiss Federal Institute of Aquatic Science and Technology; Kastanienbaum 6047 Switzerland
3. University of Chinese Academy of Sciences; Beijing 100049 China
4. Graduate Institute of Environmental Engineering; National Taiwan University; Taipei 106 Taiwan