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Paper Details

Evaluation of Selenium in Soils of Kogi State - Nigeria

1A.D. Oklo, 2R. ShaAto & 1K. Asemave

Journal Title:Journal of Chemical, Biological and physical sciences
Abstract


Samples of Soils of Lower Benue river Basin Development Authority Project sites of Kogi States were obtained and their selenium status determined using UV Spectrophotometric method at 520 nm wavelengths. From the results, the range of the concentrations of selenium of these locations were; 0.071 0.904, 0.074 0.295, 0.011 0.172 for locations A, B and C respectively. On average the results were; 0.172, 0.131, 0.085 representing A, B and C respectively. Sample no. 9 of Oguma (A) location has high concentration of selenium (Se) that portends toxicity because it has concentration exceeding the standard level of 0.5mg/kg. And the rest were below the deficiency threshold of 0.15mg/kg in Lower Benue project sites in Oguma (Bassa L.G.A.), Kogi State. All the samples in Ejule Ojebe location (B) were deficient in selenium except samples no. 1, 2 and 4. Lower Benue project sites in Kogi State, Ofarachi (Idah L.G.A.) location (C) have concentrations of selenium lower than the 0.15mg/kg except sample no. 3. In a nutshell, these soil samples analyzed indicated low levels of Se. This will have direct link to the bioavailability of selenium in the area.

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