Recently I am working on nonroad California VOCs speciation based on NEI emission inventory and SCC profiles. I tried to search related references and found the following process details which I would like to follow (Please find the slides and process figure attached below). But I have no idea where I can find the data of Engine size and Engine Technology etc for California. Could you please give me some instructions?
(Please note that I am working with the speciation of VOCs to real VOCs species rather than model species.)
The slides which I find useful is https://www3.epa.gov/ttn/chief/conference/ei21/session10/reichle_pres.pdf
Any details are highly appreciated！