|
| PC1 | PC2 | PC3 | PC4 | PC5 | PC6 | PC7 | PC8 |
| Temp. (˚C) |
| −0.80 |
|
|
|
|
|
|
| Salinity (S‰) |
|
|
|
| 0.77 |
|
|
|
| pH |
|
|
| −0.81 |
|
|
|
|
| DO |
| 0.86 |
|
|
|
|
|
|
| Chl-a | 0.46 |
|
|
| 0.56 |
|
|
|
| TSM | 0.61 |
|
|
| 0.43 |
|
|
|
| NH4 | 0.58 |
| 0.60 |
|
|
|
|
|
| NO2 | 0.81 |
|
|
|
|
|
|
|
| NO3 | 0.87 |
|
|
|
|
|
|
|
| TN | 0.82 |
|
|
|
|
|
|
|
| PO4 |
|
| 0.78 |
|
|
|
|
|
| TP |
|
| 0.77 |
|
|
|
|
|
| SiO4 |
|
|
|
|
|
|
| 0.72 |
| BOD |
| 0.68 | 0.47 |
|
|
|
|
|
| OM |
|
| 0.45 |
|
|
|
| 0.46 |
| COD |
|
| 0.78 |
|
|
|
|
|
| Fe |
|
|
|
|
| 0.82 |
|
|
| Mn |
|
|
|
|
| 0.66 |
|
|
| Cu |
|
|
|
|
|
| 0.65 |
|
| Zn |
| 0.68 |
|
|
|
|
|
|
| Cr |
|
|
| 0.79 |
|
|
|
|
| Ni |
|
|
|
| 0.56 |
| 0.38 |
|
| Cd |
| 0.69 |
|
|
|
|
|
|
| Pb |
|
|
| 0.75 |
|
|
|
|
| Hg | 0.41 |
|
|
|
|
|
| 0.46 |
| THC |
|
|
|
|
|
| −0.64 |
|
| Variance% | 14.19 | 12.43 | 11.82 | 8.13 | 7.52 | 6.18 | 6.11 | 5.63 |
| Cumulative % | 14.19 | 26.62 | 38.44 | 46.58 | 54.09 | 60.28 | 66.39 | 72.02 |