Table 2.
Distribution of daily ambient concentrations and daily temperatures in Shanghai, China, 2015–2018 (n = 1461)
| Variable | X ± S | Min | P25 | P50 | P75 | Max | IQR |
|---|---|---|---|---|---|---|---|
| PM2.5(μg/m3) | 42.93 ± 28.95 | 5.00 | 22.00 | 35.00 | 55.00 | 218.00 | 33.00 |
| PM10(μg/m3) | 58.60 ± 32.65 | 8.00 | 36.00 | 50.00 | 74.00 | 250.00 | 38.00 |
| O3(μg/m3) | 105.04 ± 45.93 | 11.00 | 73.00 | 97.00 | 131.00 | 286.00 | 58.00 |
| SO2(μg/m3) | 13.23 ± 6.89 | 4.00 | 9.00 | 11.00 | 15.00 | 75.00 | 6.00 |
| NO2(μg/m3) | 43.62 ± 20.03 | 6.00 | 29.00 | 40.00 | 55.00 | 139.00 | 26.00 |
| CO(mg/m3) | 0.77 ± 0.27 | 0.40 | 0.60 | 0.70 | 0.90 | 2.20 | 0.30 |
| T (°C) | 18.43 ± 8.71 | −5.00 | 11.00 | 19.50 | 25.50 | 35.50 | 14.50 |
| H (%) | 70.77 ± 6.31 | 53.00 | 66.00 | 71.00 | 75.00 | 83.00 | 9.00 |
X, mean value; S, standard deviation; Min, minimum value; Max, maximum value; IQR, interquartile range; PM2.5, fine particulate matter; PM10, particulate matter; O3, ozone; SO2, sulfur dioxide; NO2, nitrogen dioxide; CO, carbon monoxide; T, daily mean temperature; H, relative humidity