1. Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian, China
2. Xiamen Key Lab of Urban Metabolism, Xiamen, Fujian, China
3. Middlebury College, Middlebury, VT, USA
4. University of Chinese Academy of Sciences, Beijing, China
5. Environmental Engineering Department, Montana Tech, Butte, MT, USA
6. School of Economics and Management, Tongji University, Shanghai, China
7. State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China