International Journal of Biochemistry and Biotechnology
International Journal of Biochemistry and Biotechnology ISSN 2169-3048 Vol. 11 (8), pp. 001-002, August, 2022. © International Scholars Journals
Cadmium and lead levels in some fish species from Azuabie creek in the Bonny Esturary, Nigeria
Erema R. Daka*, Calista A. Ekeh and Miebaka Moslen
Department of Applied and Environmental Biology, Rivers State University of Science and Technology, PMB 5080, Port Harcourt, Nigeria.
Accepted 14 May, 2022
The concentrations of cadmium and lead were determined in seven fish species from the Azuabie creek in the upper Bonny estuary of the Niger Delta, which is associated with industrial and abattoir discharges. Cadmium concentrations ranged from 0.01 to 0.06 mg/kg and show no significant difference between species. The concentrations of lead (ranging from 0.104 to 0.310 mg/kg) were significantly higher in Chrysichthys nigrodigitatus and Gobius niger than other species examined. Also, lead was significantly higher than cadmium. The metal concentrations obtained were within values that may be considered safe for human consumption.
Key words: Fish, cadmium, lead, estuary, Niger Delta.
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