| 最小值 | 最大值 | 平均 | 0~50 μm | 50~80 μm | ≥80 μm |
春 | 1.3 | 129.8 | 61.2 | 42.7 | 63.3 | 87.2 |
夏 | 33.1 | 123.4 | 63.7 | 43.3 | 64.9 | 86.9 |
秋 | 33.8 | 122.6 | 62.8 | 44.4 | 63.0 | 91.7 |
冬 | 36.3 | 145.9 | 60.1 | 44.5 | 61.3 | 87.4 |
平均 | 26.1 | 130.4 | 62.0 | 43.7 | 63.1 | 88.3 |