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논문 기본 정보

자료유형
학술저널
저자정보
Ebong Godwin A. (Department of Chemistry University of Uyo Uyo Nigeria) Etuk Helen S. (Department of Chemistry University of Uyo Uyo Nigeria) Dan Emmanuel U. (Department of Chemistry University of Uyo Uyo Nigeria) Onukwubiri Margaret A. (Department of Chemistry University of Uyo Uyo Nigeria)
저널정보
한국자원공학회 Geosystem Engineering Geosystem Engineering Vol.24 No.1
발행연도
2021.1
수록면
46 - 60 (15page)

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The impact of indiscriminate disposal of waste materials on the quality of Aba River was examined in this research. Levels of Cd, Pb, Cu, Ni, Fe, Zn, Cr, and Mn were determined in water and sediments from Aba River. Modified BCR sequential extraction procedure was employed for the fractionation of metals in sediments. Levels of toxic metals in water (Cd, Pb, Ni, and Cr) were higher than their recommended limits for potable water. However, mean levels of all the metals except Fe were within their safe limits in sediment. Levels of all the metals in sediments were also higher than in water significantly at p < 0.05. Results showed that Cd, Pb, Ni, and Cr existed mostly in the non-residual fractions while essential elements (Cu, Fe, Zn, and Mn) existed mainly in the residual fraction. Consequently, toxic metals were more mobile and bio-available than the essential ones in Aba River. Cd, Pb, and Ni were metals with serious potential health risk to those exposed to the River. Principal component analysis revealed natural and anthropogenic factors as being responsible for the accumulation of metals in the studied Aba River.

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