Table 2.
Descriptive statistics of meteorological and air pollution factors
| Positive case (n/day) | Temperature (°C) | Humidity (%) | Solar radiation (h/day) | Wind speed (km/h) | O3 (ppb) | NO2 (ppb) | PM2.5 (ug/m3) | PM10 (ug/m3) | |
|---|---|---|---|---|---|---|---|---|---|
| Average | 3.34 | 22.92 | 82.31 | 4.7 | 10.6 | 26.71 | 29.59 | 31.76 | 58.38 |
| SD | 3.08 | 5.54 | 10.68 | 4.05 | 4.41 | 15.52 | 12.24 | 23.61 | 31.44 |
| Min | 0 | 3.6 | 35 | 0 | 2 | 0.05 | 4.34 | 0 | 7.83 |
| P5 | 0 | 13.3 | 62 | 0 | 6 | 6.88 | 12.63 | 1.83 | 19.33 |
| P25 | 1 | 18.2 | 78 | 0.2 | 7 | 15.38 | 19.97 | 13.61 | 34.88 |
| P50 | 3 | 24.3 | 84 | 4.5 | 10 | 22.71 | 28.76 | 27.08 | 52.17 |
| P75 | 5 | 27.9 | 90 | 8.7 | 12 | 36.25 | 37.62 | 45.17 | 75.86 |
| P95 | 9 | 29.5 | 96 | 10.9 | 19 | 54.9 | 51.31 | 74.87 | 116.8 |
| Max | 19 | 32.6 | 100 | 12.7 | 36 | 98.02 | 77.82 | 158.79 | 243.83 |