Compound | Concentration | Unit |
O2 | 2 - 4 | %-wet |
CO2 | 55 - 65 | %-wet |
H2O | 7 - 15 | %-wet |
N2 + Ar | 7 - 10 | %-wet |
CO | 45 - 70 | ppm |
SO2 | 50 - 240 | ppm |
NOx | 50 - 70 | ppm |
Others: NH3, HCl, C2H4, CHOH, etc. |