1 Department of Meteorology and Measurement, Bay Area Air Quality Management District, San Francisco, CA, USA.
2 Air Pollution Health Effects Laboratory, Department of Environmental and Occupational Health, University of California, Irvine, CA, USA.
3 Division of Hydrologic Sciences, Desert Research Institute, Las Vegas, NV, USA.
4 Department of Civil, Construction, and Environmental Engineering, North Carolina State University, NC, USA.
5 North Carolina Department of Environmental Quality, Division of Air Quality, Raleigh, NC, USA.
6 North Carolina Department of Health and Human Services Raleigh, Occupational and Environmental Epidemiology, Division of Public Health, Epidemiology Section, NC, USA.