Monitoring Bioaccumulation of heavy metals in Kattan (Luciobarbus xanthopterus) and Xashni (Planiliza abu) from different geographical localities in Salah al Dain Province

Abstract

The fish consider a good bio-montiring for aquatic environment pollution , so the goal of this study was to assess e the heavy metals Copper (Cu), Cadmium (Cd), Lead (Pb), Zinc (Zn) concentrations in the gills, liver and muscles of Kattan (Luciobarbus xanthopterus) and Xashni (Planiliza abu)and to assess potential human health risks. Fish were collected from Tigris, Al Uzym rivers and Tharthar Lake. Atomic Absorption has been used for esstemation the heavy metals in the gills, liver and musclesand determined the human health risk(Estimated Daily Intake, Hazard Quotient, and Maximum Allowable Fish Consumption of these metals). The occurrence of metal generally ranked in the orde Cu> Zn> Cd> Pb. The ranked order concentration in tissue for Cu and Cd was liver> gill >Muscle, for Pb was gill > liver >Muscle, while Zn, was Muscle > liver > gill, According to the locations, the ranked order for Cd and Pb was Tharthar> Al Uzym>Tigris, Zn was Tigris >Al Uzym>Tharthar. In the fish species, the ranked order concentration for Cu and Pb was Kattan > Xashni, while the concenrtaion of Cd and Zn showed no significant differences between the two species also the result suggested that fish meat has no health risks. This study conclusion that heavy metals bioaccumulation concentrated in variable ranked order according to the fish spp., types of tissue and location habitate also no significant impacts effects on people health.