Author(s): MU Aminu

Abstract: Concentration of Some heavy metals in main irrigation and drainage canals water of Bakolori Irrigation Project (BIP) were investigated from March 2019 to February 2020. Four sampling stations were systematically & randomly selected from the two canals respectively. Water samples were collected monthly from the eight sampling stations and taken to the laboratory for analysis of Cadmium (Cd), Chromium (Cr), Copper (Cu), Iron (Fe), Manganese (Mn), Lead (Pb) and Zinc (Zn). The data collected were arranged on the bases of two seasons (dry & wet) and five sub-seasons, namely: Early dry (Oct - Dec); mid dry (Jan & Feb); late dry (March - May); Early rainy (June & July) and flood period (Aug & Sept), and subjected to T test (p<0.05) analysis using Minitab statistical package. Results were compared with the water quality standards for Human consumption, aquatic life and fish production. Results showed that the water bodies were partially polluted by Cd, Cr and Pb, but reasonably safe with regards to other heavy metals investigated. The study recommends continuous assessment of the water bodies for heavy metals concentration and bioaccumulation studies on fishes caught from the canals, Bakolori Reservoir, Natu Lake as well as Sokoto and Bobo Rivers.

DOI: 10.22271/fish.2022.v10.i6b.2753

Pages: 101-107  |  292 Views  74 Downloads

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