Table 1 Descriptive data on air pollution variables.
Pollutant | Mean | SD | Min | Max | Q1 | Median | Q3 | IQR | Skewness | Kurtosis |
|---|---|---|---|---|---|---|---|---|---|---|
PM 2.5 ug/m3 | 32.49 | 13.71 | 9.04 | 129.71 | 24.02 | 29.32 | 37.02 | 13.01 | 1.81 | 4.86 |
O3 ppb | 20.7 | 9.38 | 4.35 | 48.75 | 12.45 | 20.33 | 27.94 | 15.5 | 0.23 | −0.89 |
CO ppm | 1.99 | 0.6 | 0.74 | 4.47 | 1.53 | 1.94 | 2.35 | 0.81 | 0.66 | 0.43 |
NO2 ppb | 58.52 | 14.64 | 22.63 | 133.03 | 48.57 | 56.51 | 65.82 | 17.25 | 0.96 | 1.6 |
SO2 ppb | 7.8 | 3.51 | 2.96 | 33.18 | 5.4 | 6.67 | 9.04 | 3.64 | 1.56 | 2.85 |
PM 10 ug/m3 | 79.22 | 32.23 | 22.32 | 461.77 | 58.53 | 75.23 | 92.85 | 34.32 | 2.49 | 17.88 |