Metal index (MI) of surface water in Ologe and Badagry lagoons.

Table 6: Metal index (MI) of surface water in Ologe and Badagry lagoons.

	Ologe lagoon			Badagry lagoon
Metals	Wet	Dry	Effect of the MI for human and aquatic health	Wet	Dry	Effect of the MI for human and aquatic health
Cr	0.75	0.50	No threat	0.40	0.40	No threat
Cd	16.67	23.33	Threshold level	3.33	6.67	Threshold level
Cu	0.82	0.76	No threat	0.32	0.29	No threat
Zn	1.16	1.67	Threshold level	0.44	0.68	No threat
Pb	5.00	3.50	Threshold level	2.25	5.00	Threshold level