Elemental compositions of the soil of Ogun-Osun river basins development authority headquaters, Ogun-state, Nigeria

I C  Okeyode and I A  Moshood

doi:10.17485/ijst/2010/v3i3.21

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Elemental compositions of the soil of Ogun-Osun river basins development authority headquaters, Ogun-state, Nigeria

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2010/v3i3.21

Year: 2010, Volume: 3, Issue: 3, Pages: 335-337

Original Article

Elemental compositions of the soil of Ogun-Osun river basins development authority headquaters, Ogun-state, Nigeria

I.C. Okeyode and I.A. Moshood ^*

Dept. of Physics, College of Natural Sciences, University of Agriculture, Abeokuta. Nigeria.
[email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Measurements of the elemental composition of soil samples were carried out using Atomic Absorption Spectrophotometer. The samples were collected from Ogun-Oshun River Basin Development Authority (O-ORBDA) Headquarters, Abeokuta, Nigeria. Samples were collected at a depth of about 10 cm and a total of 24 soil samples were taken from the labelled points, as shown in the map of the project site. The Global Positioning Satellite (GPS) was used to obtain the geographical position of each sample point. Four heavy metals (Th, U, Pb, & Cr), five major elements (K, Ca, N, P & Mg) and five trace elements (Zn, Mn, Cu, Al & Fe) were detected. Phosphorus had the highest average value of (78.71 ppm) while Nitrogen had the least (0.17 ppm). The significance of these results is discussed in the paper.
Keywords: Elemental analysis; trace elements; heavy metals; atomic absorption spectrophotometer.