| 相对湿度/% | PM2.5污染 日数/d | PM10污染 日数/d | PM2.5污染 日数占比% | PM10污染 日数占比% |
| <30 | 2 | 10 | 2.0 | 16.4 |
| 30 ≤ RH < 40 | 14 | 10 | 14.0 | 16.4 |
| 40 ≤ RH < 50 | 24 | 16 | 24.0 | 26.2 |
| 50 ≤ RH < 60 | 20 | 14 | 20.0 | 23.0 |
| 60 ≤ RH < 70 | 17 | 3 | 17.0 | 4.9 |
| 70 ≤ RH < 80 | 14 | 5 | 14.0 | 8.2 |
| 80 ≤ RH < 90 | 9 | 3 | 9.0 | 4.9 |