Table 2.

Estimated daily intake of the metals identified in various tissues of two fish species obtained from Eleyele and Ogun Rivers.

Site	Specie	Organ	Expected Daily Intake (10−5 mg/kg/dw)
			As	Cd	Co	Cr	Mn	Ni	Pb
Ogun River	Clarias gariepinus	Liver	19.0	1.25	0.65	–	–	2.42	1.43
		Muscle	14.0	–	0.64	0.04	–	3.21	3.26
		Gills	24.0	0.33	1.06	0.16	–	4.9	2.83
	Sarotherodon melanotheron	Gills	78.0	1.32	1.33	0.48	0.27	4.15	3.85
		Liver	94.0	1.71	1.43	0.16	0.52	4.78	3.61
		Muscle	52.0	1.30	–	0.32	0.61	3.72	2.06
Eleyele River	Clarias gariepinus	Gills	28.0	1.34	0.84	0.48	0.75	3.6	3.34
		Liver	–	1.06	0.75	0.16	0.80	3.59	2.83
		Muscle	56.0	0.88	1.43	0.48	–	1.77	1.81
	Sarotherodon melanotheron	Gills	8.3	1.16	1.16	0.05	–	0.41	4.63
		Liver	–	–	0.03	–	–	3.63	1.04
		Muscle	–	0.27	0.11	0.06	–	1.7	3.23