| PAHs单体 | 冬季昼间 | 冬季夜间 | |
| 因子1 | 因子2 | 因子1 | |
| Phe | 0.818 | 0.321 | 0.913 |
| Ant | 0.790 | 0.559 | 0.728 |
| Flu | 0.951 | 0.285 | 0.933 |
| Pyr | 0.944 | 0.280 | 0.805 |
| BaA | 0.967 | 0.079 | 0.963 |
| Chry | 0.980 | 0.108 | 0.979 |
| BbF | 0.991 | −0.122 | 0.981 |
| BkF | 0.982 | −0.120 | 0.987 |
| BeP | 0.990 | −0.091 | 0.990 |
| BaP | 0.979 | −0.070 | 0.992 |