1. Milken Institute School of Public Health, George Washington University, Washington, District of Columbia, USA
2. Environmental Defense Fund, San Francisco, California, USA
3. Department of Civil & Environmental Engineering and School of Public Health, University of California, Berkeley, USA
4. School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, Oregon, USA
5. Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
6. Energy, Environmental & Chemical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
7. Alameda County Public Health Department, Oakland, California, USA