| Observation sites | MeanObs | MeanSim | RMSE | R | NME | NMB | MFE | MFB |
| (μg・m−3) | (μg・m−3) | (μg・m−3) | (%) | (%) | (%) | (%) | (%) | |
| Daily-Banizoumbou | 259.1 | 245.0 | 347.6 | 15.8 | 83.4 | −5.4 | 86 | 44 |
| Daily-Cinzana | 229.0 | 194.5 | 239.4 | 9.4 | 69.0 | −15.1 | 70 | 19 |
| Hourly-Background Ouagadougou | 166.6 | 239.8 | 158.2 | 5.6 | 81.9 | −44.0 | 68 | 42 |
| Hourly-Peak Ouagadougou | 231.9 | 241.3 | 219.5 | 13.7 | 67.0 | 4.0 | 64 | 19 |