Pollution Characteristics and Possible Sources of Seldom Monitored Trace Elements in Surface Sediments Collected from Three Gorges Reservoir, China

Table 6

Component pattern matrix for varimax rotated PCA analysis for SMTEs.

Elements	Component
	PC1	PC2	PC3
Li	0.149	0.863	−0.075
Be	0.876	0.123	−0.333
B	−0.062	0.843	−0.004
V	0.913	0.171	0.203
Co	0.909	0.030	0.201
Ga	0.669	−0.050	0.222
Sn	0.903	0.217	−0.094
Sb	0.128	−0.037	0.956
Tl	0.692	0.533	0.147
Bi	0.925	0.044	0.006
Fe	0.590	−0.037	0.079
Explained variance in %	49.23	16.71	10.89