Table 3 FA and heavy metal sources identified in the sediment of the Yutan Lake
Variables | Factor 1 | Factor 2 | Factor 3 |
|---|---|---|---|
Cr | 0.659 | − 0.132 | 0.006 |
Cd | 0.908 | 0.012 | 0.088 |
Pb | 0.867 | − 0.131 | − 0.211 |
Cu | 0.178 | 0.78 | 0.458 |
Zn | 0.501 | 0.61 | 0.501 |
Hg | 0.933 | − 0.025 | − 0.04 |
As | 0.89 | − 0.271 | − 0.038 |
Ni | 0.916 | − 0.194 | − 0.015 |
Co | − 0.099 | − 0.482 | 0.59 |
Fe | 0.173 | 0.743 | − 0.291 |
Al | − 0.045 | − 0.24 | 0.851 |
Eigenvalues | 4.836 | 1.968 | 1.674 |
Percent of variance (%) | 43.967 | 17.886 | 15.218 |
Cumulative percentage (%) | 43.967 | 61.853 | 77.071 |