Important notes:

The emissions must be units of mass per HOUR. The program will not actually work if you provide emissions in mass per DAY (i.e., tons/day). The approach is to provide an average hour emissions rate and then use the hour specific multiplier to apportion that emission rate out through the hours of that day. 

When generating emissions inputs for CMAQ or CAMx, the text files emissions must be in units of tons/hr. The current version only converts NO, NO2, and SO2 to correct emissions units for CMAQ. 

