Investigation of Heavy Metal Toxicity and Sustainability of Aquatic Ecosystems in Jabi Lake, Abuja

Hadiza Abubakar Ahmad, T.G. Mohammed and Bugaje M. A.
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Hadiza Abubakar Ahmad: Department of Geography and Environmental Management, University of Abuja, Nigeria.
T.G. Mohammed: Crisis Management Centre, Department of State Service, Abuja, Nigeria.
Bugaje M. A.: Department of Environmental Science and Management Technology Federal Polytechnic Nasarawa State , Nigeria

International Journal of Research and Innovation in Applied Science, 2024, vol. 9, issue 2, 269-283

Abstract: The discharge of pollutants into freshwater ecosystems threatens environmental health and human means of livelihoods, especially in regions reliant on fisheries. This study explores the intricate relationship between aquatic toxicity and the Fauna sustainability in Jabi Lake, Abuja. Focusing on Clarias gariepinus, fish species. Nine fish samples and three water samples from Jabi Lake, Abuja, were analyzed for five heavy metals (Cu, Zn, Pb, Mn, and Fe), using Atomic Absorption Spectrometry (AAS). Results revealed permissible heavy metal concentrations in fish and water, according to FAO standards. However, prolonged exposure raises concerns for human health. Mean values for metal concentrations in fish (Cu 0.22±0.01 to 0.23±0.01 mg/kg; Zn 2.12±0.01 to 2.24±0.09 mg/kg; Pb 0.01±0.005 to 0.02±0.005 mg/kg; Mn 0.34±0.02 to 0.5±0.03 mg/kg; Fe 4.24±0.06 to 5.78±0.51 mg/kg), while in water (Cu 0.34±0.02 to 0.52±0.01 mg/l; Zn 2.91±0.045 to 3.2±0.19 mg/l; Pb 0.01±0.005 to 0.02±0.005 mg/l; Mn 0.71±0.01 to 0.9±0.02 mg/l; Fe 5.21±0.01 to 5.97±0.02 mg/l) were within permissible limits, except for Mn and Fe in water, which exceeded the WHO standards. Statistical analyses, including the student’s t-test (P

Date: 2024
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