Table 4 The summarized statistics of weather conditions and concentrations of air pollutants during the study period
Variables | Q1 | Median | Q3 | Mean | SD |
|---|---|---|---|---|---|
Daily temperature difference (°C) | 4.15 | 6.00 | 7.81 | 6.04 | 2.47 |
Relative humidity (RH) (%) | 68.56 | 74.46 | 80.29 | 74.24 | 9.10 |
PM2.5 (μg/m3) | 12.39 | 19.67 | 29.00 | 21.85 | 12.06 |
Max 8-h average O3 level (ppb) | 34.12 | 43.25 | 54.38 | 44.76 | 15.33 |