1. Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
2. Center for Aerosol and Cloud Chemistry, Aerodyne Research Inc., Billerica, Massachusetts 01821, United States
3. Department of Civil, Architectural, and Environmental Engineering, University of Texas at Austin, Austin, Texas 78712, United States
4. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
5. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
6. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
7. Air Quality Research Center, University of California Davis, Davis, California 95618, United States
8. Department of Environmental Sciences, University of California, Riverside, California 92521, United States