Constraining IEPOX and IEPOX-derived SOA Formation in CMAQ with the Use of SOAS Observations. PETROS VASILAKOS, Havala Pye, Yongtao Hu, Lu Xu, Hongyu Guo, Aikaterini Bougiatioti, Kate Cerully, Lindsay Yee, Allen H. Goldstein, Nga Lee Ng, Rodney J. Weber, Matthieu Riva, Jason Surratt, Abigail Koss, Alex Guenther, Joost de Gouw, Kevin Olson, Armistead G. Russell, Athanasios Nenes, Georgia Institute of Technology