Heavy Metals (Cd, Cu, Fe, Mn and Zn,) Assessment of Groundwater, In Kaltungo LGA, Gombe State, Nigeria

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Author(s) Casimir E. Gimba | George I. Ndukwe | Elaoyi D. Paul | James D. Habila | Lamis A. Madaki
Pages 49-56
Volume 4
Issue 2
Date February, 2015
Keywords Heavy metals, Boreholes, hand-dug well, WHO and AAS

The groundwater quality was determined in the district of Kaltungo Local Government Area of Gombe State, Nigeria. Groundwater samples were collected in April 2012 (dry season), water samples from twenty five hand-dug wells, fifteen bore holes in the district and two away from the district in Biliri which served as the control were analyzed using the Atomic Absorption Spectrophotometer after digestion to assess the suitability of the water for human consumption and domestication purposes. The selected heavy metals cadmium, copper, iron, manganese and zinc which may be toxic in excess when present in drinking water were determined. The results obtained for the heavy metals concentrations range from Copper (0.03-0.60 mg/L), iron (0.395-22.90 mg/L), zinc (0.073-1.670 mg/L), manganese (0.046-1.85 mg/L) and cadmium (0.009-0.446 mg/L). Cadmium, manganese, and iron in most samples exceeded the World Health Organization (WHO) and Standard Organization of Nigeria (SON) standard guideline for potable water usage. The result reflects high pollution of groundwater with heavy metals. Analyses of variance (ANOVA) and Pearson correlation analysis were used to describe the data.

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