Lower simulation concentration

Thanks for making a new post for this question.

The error message in your screenshot says you are looking for emissions of AACD, which is not found in any of the provided emissions input files. You need to either make sure that AACD exists on one of the emissions inputs or set CTM_EMISCHK to F.

Please also see the “Please read before posting” page for tips on how to debug your simulation and the information needed to include in your post.