Variables | Fog-haze risk comprehensive index equation | Industrial structure equation | Energy use efficiency equation | |||
Estimated value | Standard deviation | Estimated value | Standard deviation | Estimated value | Standard deviation | |
int | 12.873 | 6.013 | 28.145 | 0.39 | 35.513 | 1.73 |
| 0.99 | 3.399 | 0.037 | 0.061 | 0.035 | 0.269 |
| 0.98 | 0.75 | −0.000 | 0.004 | −0.009 | 0.016 |
| −28.29 | 9.32 | - | - | - | - |
| 26.515 | 5.296 | 0.99 | 1.63 | 0.93 | 7.15 |
| 52.803 | 9.196 | 0.99 | 0.81 | -0.116 | 3.856 |
| −17.464 | 9.40 | - | - | - | - |
| 28.366 | 8.098 | 1.069 | 1.75 | 0.98 | 7.65 |
| 11.247 | 8.276 | 0.41 | 0.53 | 0.99 | 2.33 |