Table 1.
Summary statistics on values of the air pollution and weather, August 1, 2019–february 7, 2020.
| Air Quality Index | Observations |
Mean |
Min |
Max |
Std. Dev. |
|---|---|---|---|---|---|
| 9307 | 66.295 | 11.000 | 416.208 | 39.005 | |
| Air Pollution | |||||
| PM2.5 (μg/m3) | 9307 | 41.897 | 1.000 | 385.000 | 32.374 |
| PM10 (μg/m3) | 9307 | 66.866 | 3.333 | 456.292 | 40.311 |
| CO(μg/m3) | 9307 | 0.824 | 0.159 | 3.509 | 0.292 |
| NO2 (μg/m3) | 9307 | 30.693 | 2.435 | 114.083 | 16.517 |
| SO2(μg/m3) | 9307 | 8.910 | 2.042 | 36.000 | 4.334 |
| O3 (μg/m3) | 9307 | 116.864 | 4.500 | 365.696 | 53.007 |
| Weather | |||||
| Average wind speed (0.1 m/s) | 9307 | 20.624 | 0.000 | 123.000 | 10.473 |
| Average temperature (0.1 °C) | 9307 | 178.455 | −46.000 | 338.000 | 88.257 |
| Mean atmospheric pressure (0.1 hPa) | 9307 | 10061.990 | 9352.000 | 10378.000 | 136.793 |
| Average relative humidity (1%) | 9307 | 73.597 | 15.000 | 100.000 | 14.215 |
| Precipitation (0.1 mm) | 9307 | 31.460 | 0.000 | 2891.000 | 121.256 |
| Private vehicles restriction | 9307 | 0.475 | 0 | 1 | 0.499 |
| Public transport suspension | 9307 | 0.024 | 0 | 1 | 0.155 |
Notes: Air pollutant concentrations are mean 24 h values for everyday and weather are statistics from the China meteorological administration. Means are across cities (i.e., not weighted). All data are for the period August 1, 2019–February 7, 2020.
-
A.Private Vehicle Restriction