How to adjust background emission for future air quality modeling

Dear all,

I aspire to simulate future air quality over my study area using WRF-CMAQ under different emission scenarios. However, since I am modeling future air quality I have no idea on how to adjust background emissions in this case.

Would you please kindly advise me in this regard?
Look forward to hearing from you.

Please clarify this. At least I don’t understand what you mean about background emissions. Do you mean boundary conditions in future? If so, you may try to use GEOS-Chem output for future scenarios as the boundary fields.