Hansen Cao¹, Daven K Henze¹, Mark Shephard², Enrico Dammers³, Karen Cady-Pereira⁴, Matthew James Alvarado⁵, Chantelle Rose Lonsdale⁵, Gan Luo⁶, Fangqun Yu⁶, Liye Zhu⁷, Jesse O Bash⁸ and Venkatesh Rao⁹, (1)University of Colorado Boulder, Boulder, CO, United States, (2)Environment and Climate Change Canada, Toronto, Canada, (3)Environment and Climate Change Canada, Air Quality Research Division, Toronto, ON, Canada, (4)Atmospheric and Environmental Research, Lexington, MA, United States, (5)AER, Inc., Lexington, MA, United States, (6)SUNY Albany, Albany, NY, United States, (7)Colorado State University, Fort Collins, CO, United States, (8)U.S. Environmental Protection Agency, Durham, NC, United States, (9)USEPA, Office of Air Quality Planning and Standards, RTP, NC, United States