Level of Heavy Metals and Potential Ecological Risks in Irrigated Horticultural Farms in the Vicinity of Lake Ziway, Central Ethiopian Rift Valley Region

Table 6

Single heavy metal soil contamination (CF) and overall soil contamination () at different sampling sites, n = 15.

Site	CF										PLI
	As	Pb	Zn	Cd	Hg	Cu	Ni	Co	Cr
1	0.35	0.78	0.39	1.22	2.32	0.26	0.21	0.35	0.13	6.01	0.449
2	0.36	0.80	0.38	1.33	2.66	0.22	0.25	0.41	0.12	6.53	0.467
3	0.19	0.23	0.23	0.33	1.59	0.09	0.05	0.06	0.04	2.81	0.157