I am a new learner of CMAQ and i use the latest CMAQ-5.3.1 version. I am now rerunning one of my senior’s simulation and got the emission input data directly from her. She is using CMAQ-5.0.2 and SMOKE-4.0. So the emission data i got is generated using SMOKE-4.0 and the chemical mechanism is cb05. But in CMAQ-5.3.1 the cb05 chemical mechanism is updated to cb6. Could i use the emission inventory directly? Do i need to regenerate the emission input data myself because of the update of the chemical mechanism?