1. SKLEAC, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, PO Box 2871, Beijing 100085, China
2. Department of Environmental Engineering, National Cheng Kung University, 1 University Road, Tainan City 70101, Taiwan
3. Beijing Waterworks (Group) Co. Ltd, No. 121 Xuan Wu Men Road, Xicheng District, Beijing 100085, China
4. Beijing Capital Co., Ltd, No. 8 Bei San Huan East Road, Chao Yang District, Beijing 100028, China