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Ecological and health risk from heavy metal exposure to fish.

Olawusi-Peters OO, Ajibare AO, Akinboro TO

Heavy metals in the gills and muscles of Sarotherodon galilaeus, Coptodon zilli, Heterobranchus isopterus and Clarias isherensis of Awara Reservoir, Ikare-Akoko Ondo State, Nigeria were assessed from February to May, 2016 using 210VGP Atomic Absorption Spectrophotometer after digestion and the values were subjected to Health Risk Index and Ecological Risk Quotient. Results revealed that the observed concentration of heavy metals was generally below the permissible limit. The trend of metal accumulation in the examined four fish species was Cd