Comparative Geochemical Assessment of Heavy Metal Pollutants among the Mediterranean Deltaic Lakes Sediments (Edku, Burullus and Manzala), Egypt.

Effect of heavy metals in irrigation water of different fish farms on the quality of cultured fish

“…These results were much lower to that obtained by some authors (Saeed & Shaker, 2008 The present study revealed that, the highest concentrations of copper, zinc and lead in sediment were recorded at Bahr El-Baqar fish farm, and the highest value of iron in sediment was recorded in Mariout fish farm. These results were agreed that obtained by many authors (El-Amawy 2016; Shokr et al, 2016;Shalaby, 2017;Yun-Ru Ju et al, 2017;Khallaf et al, 2018).…”

Heavy metals risk assessment in water and bottom sediments of ICOLLs in Northern Poland

“…The concentration of lead in water of Polish lakes is far lower than those in Thaiu and Maharlu lakes, and comparable with Egyptian lakes. The concentration of Fe and Mn in 10 polish ICOLLs are close to lakes from Egypt and Nigeria, however Zn concentration is 2-3 times higher than reported for Manzala lake in Egipt (Bahnasawy et al, 2011;Saeed and Shaker, 2008), and even 100 times higher in comparison to other Egyptian lake Edku (Saeed and Shaker, 2008) while almost 50% lower than in previous research conducted in polish Resko lake (Daniszewski and Konieczny, 2013a,b The concentration of Cu, Pb, Fe and Mn in sediments of Polish ICOLLs is of similar order of magnitude than those in Egyptian lakes, excluding Manzala lake (Saeed and Shaker, 2008;Shalaby et al, 2017). Suprisingly, the concentration of Zn in bottom sediments of polish ICOLLs is 5 up to even 135 times higher than in other lakes, depending on their location.…”

Assessment of some heavy metals contamination and thier pollution indices in water and fish organs of (Oreochromis niloticus and Clarias gariepinus) in Burullus and Edku lakes, (A comparative study)

“…These Lakes have always contributed more than 40% of the country's total fish production, but at present this percentage has been decreased to less than 12.22% (GARFD, 2013). The northern coastal-deltaic lakes (Edku, Burullus and Manzala) suffer from serious environmental pollution as they receive agricultural drainage, industrial wastewater as well as domestic wastewaters directly without any treatments (Shalaby et al, 2017).Tilapia species including Oreochromis niloticus, Oreochromis aureus, Sarotherodon galilaeus and Tilapia zillii ranked first followed by Clarias gariepinus in the fish production of the Egyptian Lakes (Saeed and Shaker, 2008;Zahran et al, 2015).…”