| 指标 | 工业废水排放量 | 工业废气排放量 | 工业固体废物生产量 | 
| 
 | 5146 | −5876 | −567.4 | 
| 
 | 2.478 | 1.484 | 0.1259 | 
| 
 | −5.326e−5 | −1.071e−5 | −2.056e−6 | 
| 
 | 3.016e10 | - | 9.441e12 | 
| 
 | 0.8006 | 0.9751 | 0.5649 | 
| R | 0.8948 | 0.9875 | 0.7516 | 
| 极值点1 | 31917.6732 | 69288.8949 | 43914.1013 | 
| 极值点因变量值1 | 39789.7342 | 45547.0399 | 1797.7623 | 
| 极值点2 | 85813.5393 | - | 101246.7976 | 
| 极值点因变量值2 | 16183.1898 | - | 908.1923 |