@idefix37 thank you! Your answers were helpful! I've googled more and found that this is not a trivial task to get ground concentrations from the satellite integral data. There are bunch of complex models and ways to do so. I wonder why the other pollutants are presented in micrograms per m3 and only the SO2 data is in 'unpractical' units. Wish you good luck!
Best posts made by AirPollutant
RE: Probably wrong units of SO2 concentration