Assessment of DNA damage in Fish collected from Nile River

DNA damage has been introduced as a useful tool for genotoxicity evaluation in polluted environment. In this study, the influence of environmental pollutants on the DNA damage was assessed in tilapia fish collected from three different sites including non polluted (served as control site), agricultural mixed point and industrial mixed point with Nile River Damage in DNA was assessed by calculating DNA fragmentation percentage. Results demonstrated that the collected samples from the mixed point of waste water represented the highest degree of DNA damage followed by the mixed point of agriculture drain when compared with samples collected from control site. The results suggested a genotoxicity of the aquatic environment of some regions at River Nile. Additionally, the DNA fragmentation in fish provided adequate sensitivity to be utilized as a tool in the monitoring of water pollution and environmental risk assessment.