1. Department of Civil & Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
2. Yale School of the Environment, 195 Prospect St, New Haven, CT, USA
3. Center for Green Chemistry & Green Engineering at Yale, 370 Prospect St, New Haven, CT, USA
4. School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
5. Yale School of Public Health, 60 College St, New Haven, CT, USA
6. Dept of Chemistry, Yale University, 225 Prospect St, New Haven, CT, USA
7. Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hong Kong