| Variable | Obs | Mean | Std.Dev. | Min | Max |
| AQI | 504 | 52.876 | 13.476 | 20.733 | 96.567 |
| CO | 504 | 0.882 | 0.162 | 0.494 | 1.598 |
| NO2 | 504 | 27.209 | 12.349 | 6.367 | 67.871 |
| O3 | 504 | 106.621 | 25.704 | 27.097 | 189.679 |
| SO2 | 504 | 10.955 | 3.883 | 2.633 | 24.194 |
| PM2.5 | 504 | 31.847 | 11.022 | 9.733 | 66.767 |
| GDP | 504 | 3.99e+07 | 5.85e+07 | 2,050,000 | 2.25e+08 |
| 人均GDP | 504 | 78,078.71 | 38,728.29 | 35,651 | 184,000 |
| 工业占比 | 504 | 48.292 | 7.691 | 27.97 | 61.73 |