1. School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, PR China;
2. Guangdong Engineering Technology Research Center for Drinking Water Safety, School of Environment, South China Normal University, Higher Education Mega Center, Guangzhou, PR China;
3. Consortium on Health, Environment, Education and Research (CHEER), and Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, Hong Kong, PR China