Table 3.

Pearson’s correlation coefficient value (r) of the measured parameters.

	As	Cd	Cr	Cu	Fe	Mn	Ni	Pb	Zn	Rn	pH
As	1.000	0.5 × 10–4	0.422	0.015	0.015	0.032	0.005	0.049	0.02	0.001	0.007
Cd		1.000	0.001	0.451	0.483	0.640	0.005	0.013	0.022	0.075	0.040
Cr			1.000	0.053	0.080	0.194	0.046	0.352	0.060	0.827	0.006
Cu				1.000	0.948	0.642	0.023	0.586	0.001	0.029	0.121
Fe					1.000	0.769	0.043	0.520	0.8 × 10–4	0.063	0.242
Mn						1.000	0.046	0.352	0.023	0.827	0.006
Ni							1.000	0.066	0.046	0.038	0.017
Pb								1.000	0.042	0.378	0.323
Zn									1.000	0.335	0.002
Rn										1.000	0.003

Significant values are in bold