Health Risk Assessment and Levels of Heavy Metals in Farmed Nile Tilapia (Oreochromis niloticus) from the Volta Basin of Ghana

Table 3

Levels of heavy metals concentrations (mg/kg) in the fish feed from fish farms.

Heavy metals	Fish farm A	Fish farm B	Fish farm C	FAO/EU MRL
Fe	109.20	96.14	115.42	100.00
Ni	0.76	0.22	—	8.00
Mn	11.40	11.60	11.90	7.70
Zn	0.26	0.43	0.23	150.00
Cr	—	—	0.44	1.00