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Distribution of ambient air pollution concentrations (μg/m3)
| Air pollutant | Mean | Percentile distribution | IQR | ||
|---|---|---|---|---|---|
| P25 | P50 | P75 | |||
| PM10 | 88 | 75 | 88 | 95 | 20 |
| SO2 | 26 | 20 | 26 | 34 | 14 |
| NO2 | 31 | 23 | 31 | 41 | 18 |
| CO | 970 | 906 | 970 | 1260 | 354 |
| O3 | 92 | 80 | 92 | 102 | 22 |
IQR interquartile range
