Pollutant | N | Mean overprediction (standard deviation) | R 2 |
---|---|---|---|
NO2 (μg/m3)a | 102 | −2.2 (5.8) | 0.75 |
PM2.5 (μg/m3) | 10 | 0.090 (1.5) | 0.83 |
PM2.5 absorbance (10−5 m−1)b,c | 5 | −0.13 (0.28) | 0.52 |
PM10 (μg/m3) | 82 | 0.77 (4.9) | 0.71 |
PMcoarse (μg/m3) | 10 | 1.2 (1.7) | 0.65 |
PNC (particles/cm3)c | 4 | −5058 (17678) | 0.00 |