Table 4. Maximum, Minimum, and Average Values of Different Pollution Indices in This Paper.

	Igeo			CF			Eri			RI
metals	min	max	aver	min	max	aver	min	max	aver	min	max	aver
Co	–2.98	–0.66	–1.98	0.19	0.95	0.42	0.95	4.75	2.08	55.96	878.63	168.78
V	–3.04	–0.16	–1.92	0.18	1.34	0.46	0.37	2.69	0.92
Cu	–2.65	1.21	–0.83	0.24	2.56	1.07	1.19	17.34	5.37
Pb	–2.44	–0.58	–1.55	0.28	1.19	0.56	1.38	5.93	2.79
Ni	–2.87	0.02	–1.70	0.21	1.52	0.55	1.03	7.60	2.73
As	–2.53	–0.25	–1.55	0.26	1.26	0.56	2.60	12.62	5.61
Cd	–0.49	3.59	0.88	1.07	18.04	3.49	32.14	541.07	104.57
Hg	–1.96	2.31	–0.92	0.38	7.44	1.12	15.38	297.44	44.72