Hello Mahshid,
I have a problem similar to yours, and I would like to ask you how to solve it.
I use the CMAQ-PFAS version, which adds some species based on CMAQ5.3.2, the mechanism is cb6r3_ae7_aq, HFPODA exists in GC_cb6r3_ae7_aq.nml.
I would appreciate your help.