Assessment of Physicochemical Factors, Heavy Metals, Organic and Microbial Pollution of water in Omar Bek Drain, Nile Delta, Egypt.

Heba Allah M. Elbaghdady, Ahmed M. El-Naggar, Hisham M. Rabee, Asmaa M. Khalil


A comparative biochemical analysis was made of the water quality in Omar Bek Drain and interconnected spot of Damietta Branch of the River Nile, Egypt. Fish community in the drain was species-poor; only two survivor fish, with erratic population dynamics, namely Clarias gariepinus and Oreochromis niloticus were observed. The pH values in all localities lied on the weak alkaline scale. The midstream and downstream drain localities stored greater numbers of HPC, total coliforms and fecal coliforms than the river localities. The electric conductivity exceeded the permissible levels in all investigated areas. Similar trend was recorded for the total dissolved solids. Obviously high amounts of sodium were found in Omar Bek Drain. The drain was profoundly contaminated by heavy metals than the Damietta Branch. The downstream drain received the highest amounts of Polycyclic Aromatic Hydrocarbons; however carbamate pesticides showed their highest levels in the downstream of communication spot. The total organic carbon was more abundant in sediment, fish muscles and gills from the drain and less abundant in the River Nile.

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