Muhammad Hassana, Yakubu H. Ngadda and Aliyu Adamu


The population health risk due to heavy metal exposure has been becoming serious and worldwide environmental issue that has attracted considerable public attention. In this study, the level of heavy metal (Cd, Cr, Fe, As and Pb) in soil samples were determined using Atomic Absorption Spectrophotometer methods (AAS) to assess heavy metals contamination of soil due to mining activities around Gombe, Nigeria. The results obtained showed that the highest concentrations of 96.7271±2.770 mg/kg for Fe were observed in Unguwar Baka I, 25.5355±1.782 mg/kg for Pb were observed in Unguwar Baka I, 21.9673±2.047 mg/kg for Cr were observed in Tumu, 12.9675±1.969 for Cd were observed in Unguwar Baka I and 0.5782±0.025 mg/kg for As were observed in Unguwar Baka. In all the sampling locations, the levels of heavy metals in soil samples measured have the variation pattern in the order: Fe > Cr > Pb > Cd > As. The levels of the Fe, Cr, Pb, Cd, and As are higher than the World Health Organization (WHO) permissible limits in soil. This indicates that their concentration in the soil had the higher capability to pose severe health risk to the community of that area. This information will contribute to awareness of the potential impacts of heavy metals pollutants around the mining area of Gombe state. Read full PDF

Keywords: Heavy Metals, Level, Concentration, Atomic Absorption Spectroscopy, Mining, Pindiga


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