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VOL. 5, ISSUE 2 (2023)
Distribution, contamination and ecotoxicological risk assessment of trace metals in stream sediments of Mari area, Betare-Oya gold district (Neoproterozoic Fold Belt)
Authors
Tanyi Lineslie Enowakwen, Ndema Mbongué Jean-Lavenir, Christopher Mbaringong Agyingi, Lemnyuy Prosper Yiika, Emmanuel Eseya Mengu Junior
Abstract
Mari area is located within the pull apart syn-depositional Neoproterozoic volcano-sedimentary basins in Cameroon. The main aim of this study was to evaluate sources, contamination and ecotoxicological risk of trace metals in sediments of Mari area. Stream sediment samples were collected and analyzed using inductive couple plasma mass spectrometry (ICP-MS). Sediment samples show high content in Mn (868 - 2950 ppm), Pb (20.90 – 2950 ppm), Th (50.70 – 200 ppm), Zn (77 – 255 ppm), Cu (8.60 – 222 ppm) and depleted in the rest of trace elements. The contamination index (CI: 169.07 - 671.38), modified contamination index (mCI: 12.08 - 47.96), pollution load index (PLI: 0.94 - 3.21), nemerow integrated pollution load index (NIPI: 0.15 - 296), geo-accumulation index (Igeo: -5.32-21.76), potential environmental risk factor (Er: 0.14 - 333.33) and ecotoxicological risk of trace metals indicate sediments contamination and metal pollution of the ecosystem. Sediments exhibits high probability toxicity index for trace metals and have biological effect on biota. The lithology, mining activities, agricultural practices and domestic activities are responsible for sediments contamination and metal pollution in Mari area. Constant monitoring and implementation of environmental laws and regulation in mining areas is of great important to protect the environment and biota for sustainable development.
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Pages:36-45
How to cite this article:
Tanyi Lineslie Enowakwen, Ndema Mbongué Jean-Lavenir, Christopher Mbaringong Agyingi, Lemnyuy Prosper Yiika, Emmanuel Eseya Mengu Junior "Distribution, contamination and ecotoxicological risk assessment of trace metals in stream sediments of Mari area, Betare-Oya gold district (Neoproterozoic Fold Belt)". International Journal of Ecology and Environmental Sciences, Vol 5, Issue 2, 2023, Pages 36-45
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