1. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec H3A 1G1, Canada
2. Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, Colorado 80521, United States
3. Institute for Health and Social Policy, McGill University, Montreal, Quebec H3A 1G1, Canada
4. Bieler School of Environment, McGill University, Montreal, Quebec H3A 2A7, Canada
5. Department of Geography, McGill University, Montreal, Quebec H3A 0B9, Canada
6. Laboratory for Earth Surface Processes, Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
7. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
8. CAS Center for Excellence in Regional Atmospheric Environment, Chinese Academy of Sciences, Xiamen 361021, China