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All Journal Journal of Multidisciplinary Science: MIKAILALSYS
Mohammed, Yushau Ahmed
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Environmental Science Physics Social Sciences Other

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Ecological Risk Assessment of Heavy Metal Contamination from Artisanal and Small-scale Mining: A Case Study of Mayo-Sinna, Ngoroje in Sardauna L.G.A, Taraba State, Nigeria Garkida, David Musa; Oruenye, Daniel Emeka; Mohammed, Yushau Ahmed; Leila, Delphine David
Journal of Multidisciplinary Science: MIKAILALSYS Vol 3 No 2 (2025): Journal of Multidisciplinary Science: MIKAILALSYS
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/mikailalsys.v3i2.5644

Abstract

This study assessed the ecological risk of heavy metal contamination from artisanal and small-scale mining (ASM) activities in Mayo-Sinna, Nguroje (Sardauna L.G.A, Taraba State, Nigeria). Soil samples from mining and control sites were analyzed for cadmium (Cd), lead (Pb), cobalt (Co), copper (Cu), chromium (Cr), zinc (Zn), nickel (Ni), manganese (Mn), and iron (Fe) using atomic absorption spectrophotometry (AAS). Results revealed elevated Pb (0.1085 ppm) and Fe (1.4060 ppm) concentrations in mining sites exceeding World Health Organization (WHO) and Nigerian Standard for Drinking Water Quality (NSDWQ) guidelines, consistent with contamination patterns observed in other ASM regions. However, unexpected findings included lower Cu (-0.1964 ppm) and Zn (0.0789 ppm) levels in mining sites compared to control areas (1.5000 ppm and 2.7300 ppm, respectively), suggesting complex site-specific geochemical dynamics. Negative values for Cd, Co, and Cu indicated potential analytical interferences requiring methodological refinement. While Cr (0.0603 ppm) and Ni (0.0298 ppm) remained below regulatory thresholds, their presence warrants continued monitoring. The study highlights the need for improved mining practices and enhanced environmental monitoring protocols to mitigate heavy metal pollution in ASM communities. These findings contribute to the growing body of knowledge on mining-related environmental degradation in West Africa and underscore the importance of context-specific risk assessments for effective remediation strategies.
Spatiochemical Analysis of Heavy Metal Contamination in Water Sources from Langalanga Mining Site, Bali L.G.A, Taraba State, Nigeria Garkida, David Musa; Oruenye, Daniel Emeka; Mohammed, Yushau Ahmed; Leila, Delphine David
Journal of Multidisciplinary Science: MIKAILALSYS Vol 3 No 2 (2025): Journal of Multidisciplinary Science: MIKAILALSYS
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/mikailalsys.v3i2.5645

Abstract

Mining activities in developing nations like Nigeria drive economic growth but often result in environmental degradation, particularly through heavy metal contamination of water resources. This study assessed the concentrations of heavy metals, including cadmium (Cd), lead (Pb), chromium (Cr), and iron (Fe) in water samples from the Langalanga mining site in Bali L.G.A, Taraba State, Nigeria. Using Atomic Absorption Spectrophotometry (AAS), the analysis revealed significant exceedances of World Health Organization (WHO) and Nigerian Standard for Drinking Water Quality (NSDWQ) limits for iron (1.0465 ppm vs. 0.3000 ppm) and lead (0.0348 ppm vs. 0.0100 ppm). While manganese (Mn) and nickel (Ni) levels remained below thresholds, anomalies such as negative values for copper (Cu) and zinc (Zn) in control samples indicated potential analytical challenges. The findings underscore the urgent need for stricter regulatory enforcement and remediation measures to mitigate health risks, such as neurological disorders and liver damage, associated with prolonged exposure. This study highlights the dual necessity of standardized methodologies and site-specific approaches in addressing mining-related water pollution in Nigeria.
Co-Authors Garkida, David Musa Leila, Delphine David Oruenye, Daniel Emeka