Ecological study of bioaccumulation of some heavy metals in muscles and gills of two kinds of fish

Abstract

The current study aimed to know the suitability of two kind of fish shanik fish and common carp that have possible accumulation heavy metals (Cr, Cu, Zn, Pb, Cd) to consume by human after determined their concentration in water, sediments, muscles and gills. the samples where collection from artificial lake culture that located in Babylon governorate, the water and sediments also collected, and the samples were digested in probable oxidize solution and the concentration of heavy metals have been found by using ASS meter. The results appeared according to WHO and EPA that concentration of heavy metals in water were above standard limited, and according to FAO/WHO the concentration of study heavy metals in fish were also above standard limiting to consume safely with some exceptions. The results pointed by using BAF, BCF and BSAF values that these factors where below or in moderate rate (> 1,000 or < 1,000) value that permit to consume these organs separately by human, and can be above and dangerous when it consumed combined. The results showed a significant differentiation among data with some exception and positive correlation coefficient in level of probability 0.05.