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International Journal Geology and Mining
Geochemical investigation of surface water from the effect of mining in the Arufu area, NE Nigeria
Uzoegbu M. Uche
Accepted 20 May, 2014
Citation: Uzoegbu MU (2014). Geochemical investigation of surface water from the effect of mining in the Arufu area, NE Nigeria. International Journal Geology and Mining 1(1): 002-016.
Copyright: © 2014 Uzoegbu MU. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
The Upper Cretaceous lithogenic formations in the stratigraphic succession in the Arufu area are made up of Albian Arufu, Uomba and Gboko Formations. This paper aims to determine the concentrations of selected trace elements in the surface water and their possible health and implications. The results of selected elements are in the range of below the limit of detection to percent levels; As(0 - 97.19 ppm), Cd(0 - 4.65 ppm), Co(0 - 503.2 ppm), Cr(4.40 – 6020 ppm), Cu(0 - 74.77 ppm), Ni(0 – 24560 ppm), Pb(3.35 – 59660 ppm), S(0 – 4469 ppm). The observation shows that As, Pb and Cd have concentrations above maximum permitted levels of 0.01 ppm, 0.01 ppm and 0.003 ppm respectively in water for human consumption, and above the threshold of contamination of 15 ppm and 20 ppm for As and Pb respectively. This suggests that more people will be at risk of pollutants as lead – zinc exploitation proceeds. The frequency distribution plots of the elements generally show unimodal distribution indicating that most of the elements belong to a common parent material.
Keywords: Water, trace elements, geochemistry, threshold, contamination, toxic.