CMAQv5.0.2 SOA Update

The low-NOx toluene and xylene SOA yields were updated to follow the data in Table 3 of Ng et al. 2007 ACP. Values in CMAQv5.0.1 and prior were swapped. The correct values are:

Species	Low-NOx yield (alpha)
m-xylene	0.36
toluene	0.30

Reference

Ng, N. L., J. H. Kroll, A. W. H. Chan, P. S. Chhabra, R. C. Flagan, J. H. Seinfeld, Secondary organic aerosol formation from m-xylene, toluene, and benzene, Atmos. Chem. Phys., 7, 3909-3922, 2007.