| 预测值
真实值 | 良 | 轻度污染 | 严重污染 | 优 | 中度污染 | 重度污染 |
| 良 | 1163 | 0 | 0 | 3 | 0 | 0 |
| 轻度污染 | 1 | 637 | 0 | 0 | 0 | 0 |
| 严重污染 | 0 | 0 | 0 | 0 | 0 | 11 |
| 优 | 0 | 0 | 0 | 148 | 0 | 0 |
| 中度污染 | 0 | 10 | 0 | 0 | 218 | 0 |
| 重度污染 | 0 | 1 | 0 | 0 | 2 | 141 |