[Retracted] Groundwater Suitability Evaluation Using Entropy Weightage Quality Index (EWQI) Model and Human Health Cancer Risk Assessment of Heavy Metal in Eastern India

Table 7

PCA analysis of heavy metal concentration.

Parameter	Coefficients of PC1	Coefficients of PC2	Eigenvalue	Percentage of variance	Cumulative variance
As	0.42454	-0.18525	2.24	37.48	37.4
Ni	-0.1321	0.42347	1.40	23.47	60.9
Mn	0.40861	-0.53642	1.21	20.23	81.1
Fe	0.48102	0.47852	0.66	11.14	92.3
Zn	0.35787	-0.28842	0.27	4.51	96.8
Cu	0.52527	0.4318	0.19	3.18	100.0