Table 1 Air pollutants and meteorological data
Variables | Mean | SD | IQR | Percentiles | ||||
|---|---|---|---|---|---|---|---|---|
Minimum | 25th | 50th | 75th | Maximum | ||||
Air pollution | ||||||||
 PM2.5, μg/m3 | 23.1 | 4.4 | 7.0 | 16.0 | 20.3 | 22.0 | 27.3 | 30.0 |
 PM10, μg/m3 | 53.0 | 4.9 | 9.1 | 44.8 | 48.5 | 52.4 | 57.6 | 61.0 |
 CO, 10 ppm | 5.9 | 0.7 | 1.1 | 5.2 | 5.3 | 5.6 | 6.4 | 7.0 |
 SO2, ppb | 5.7 | 0.5 | 0.7 | 4.7 | 5.3 | 5.7 | 6.0 | 6.4 |
 NO2, ppb | 25.3 | 1.9 | 2.1 | 23.0 | 24.0 | 25.0 | 26.1 | 29.1 |
Annual average weather conditions | ||||||||
 Temperature, °C | 12.8 | 0.6 | 1.1 | 12.0 | 12.2 | 12.9 | 13.3 | 13.6 |
 Rainfall, mm | 1486 | 395 | 444 | 792 | 1320 | 1451 | 1764 | 2044 |
 Wind speed, m/s | 2.48 | 0.24 | 0.3 | 2.0 | 2.4 | 2.45 | 2.7 | 2.8 |