Table 6.

Spearman correlation analysis for PTEs in potable groundwater samples of the Bhagirathi valley region.

		Al	Cr	Mn	Cu	Zn	As	Se	Cd	Pb
Al	Correlation Coefficient	1.000	0.508**	− 0.578**	0.292	− 0.646**	0.303	0.192	− 0.107	0.156
	Sig. (2-tailed)		0.003	0.000	0.099	0.000	0.086	0.284	0.554	0.386
Cr	Correlation Coefficient		1.000	− 0.575**	0.244	− 0.540**	0.203	0.250	0.002	0.118
	Sig. (2-tailed)			0.000	0.172	0.001	0.258	0.161	0.990	0.512
Mn	Correlation Coefficient			1.000	− 0.129	0.741**	− 0.441*	− 0.175	0.294	− 0.159
	Sig. (2-tailed)				0.473	0.000	0.010	0.329	0.097	0.376
Cu	Correlation Coefficient				1.000	− 0.164	− 0.163	0.303	0.151	0.599**
	Sig. (2-tailed)					0.360	0.363	0.086	0.400	0.000
Zn	Correlation Coefficient					1.000	− 0.329	− 0.247	0.460**	− 0.231
	Sig. (2-tailed)						0.061	0.165	0.007	0.196
As	Correlation Coefficient						1.000	0.155	− 0.167	− 0.064
	Sig. (2-tailed)							0.389	0.354	0.725
Se	Correlation Coefficient							1.000	0.083	0.478**
	Sig. (2-tailed)								0.646	0.005
Cd	Correlation Coefficient								1.000	0.071
	Sig. (2-tailed)									0.696
Pb	Correlation Coefficient									1.000
	Sig. (2-tailed)

n = 33 (number of samples); **Correlation is significant at the 0.01 level (2-tailed); *Correlation is significant at the 0.05 level (2-tailed); and Bold value indicates strong correlation.