| Factors | Exploratory Factor Analysis (72.7% Variance) | |||||
| Factor 1 | Factor 2 | Factor 3 | Factor 4 | Factor 5 | ||
| % Variance | 35.2 | 12.9 | 9.2 | 8.8 | 6.6 | |
| Elements-loadings | Sr-0.959 Mn-0.056 Fe-0.953 Be-0.925 Ba-0.864 Co-0.804 Cs-0.789 Mg-0.649 | Ni-0.879 Cr-0.846 Hg-0.689 | Cd-0.841 V-0.827 | Se-0.672 Pb-0.646 As-0.607 | Zn-0.870 | |
| Possible sources | Crustal elements, iron smelting, vehicles, cement manufacture, oil and gas | Steel and metal alloys | Slag, electroplating | Metalloids | Crustal element, roofing, vehicles, coatings | |
| Parameters of the analysis | -Kaiser-Meyer-Olkin Measure of Sampling Adequacy. -Bartlett’s Test of Sphericity Approx. Chi-square df Significance (p) | 0.804 1925.5 153 0.00 | ||||