Chemical compositions and heavy metal contents of Oreochromis niloticus from the main irrigated canals (rayahs) of Nile Delta

Assessments of the contamination by metallic trace elements (Cd, Cu, Hg, Pb and Zn) and of the risks of exposure due to the consumption of fish (Oreochromis niloticus and Chrysichthys nigrodigitatus) taken from Lake Kossou (Côte d'Ivoire )

“…In the Boussouma dam in Burkina Faso, Ouédraogo [38] found in the muscles of the species O. niloticus average levels of 2.46 mg / kg in Pb and 0.18 mg / kg in Cd above our results. Concentrations of Pb, Cd, Cu and Zn in the muscles of fish species O. niloticus from Lake Kossou were significantly lower than those obtained by Talab et al [39] in the Nile Delta in Egypt, with values ranging between 1.34 mg / kg and 1.86 mg / kg for Pb, between ND and 0.34 mg / kg for Cd, between 0.70 mg / kg and 2.20 mg / kg for Cu, and between 3.25 mg / kg and 11.10 mg / kg for Zn. However, the level of Cu in the present study was similar to that reported by Kah et al [40] in muscles of species O. niloticus.…”

Ecological risk assessment of heavy metal pollution in sediments of Nile River, Egypt

“…It extends from Aswan (downstream of the High Dam) to Cairo, approximately 950 km. After passing Cairo, the Nile turns northwest for approximately 23 km and splits in Al-Kanatir Al-Khayriya into two branches, Rosetta and Damietta, surrounding the delta region between them, and four rayahs (major canals), namely, Nasiri, Behari, Menoufi, and Al Tawfiqi (Talab et al, 2016).…”

Health risk assessment of heavy metals accumulation and Health status of O. niloticus from two Egyptian lakes

“…HMs may cause many biological, biochemical malfunction, and various diseases (Ali and Khan, 2019). The bioaccumulation of HM in the edible parts of fish has gained a lot of attention (Talab, 2016;Azab et al, 2019;Ghannam, 2021). The present work recorded seasonally fluctuation in HM accumulation in fish.…”