A GIS-based analysis of heavy metals around Otukpo rice mill in Benue state

Augustine Abah Odeh 1, *, Jasini Ali Alwadood 2, Michael Nnaemeka Ihenacho 1, Epsar Philip Kopteer 1, Udya Aniya 1, James Adah John 1, Nkechinyere Gift Nwagwu 1, Sumaiyat Kpanja Abdullahi 1, Halimat Ifedolapo Oriola 1, Vivian Aaron Ibrahim 1, Elizabeth Rizga Jackson 1, Kamila Abba Tukur 1, Kikelomo Oluwabokola Adebo 1, Chinenye Ann Nweke 1, Tochukwu Ikediashi 1, Amarachi Christiana Ikwuka 1 and Philip Okoh Amodu 1

1 National Space Research and Development Agency (NASRDA), Nigeria.
2 African Regional Centre for Space Science and Technology Education- English (Arcsste-E), Ile-Ife, Osun State, Nigeria.
 
Research Article
World Journal of Advanced Research and Reviews, 2024, 22(01), 036–042
Article DOI: 10.30574/wjarr.2024.22.1.1025
 
Publication history: 
Received on 22 February 2024; revised on 30 March 2024; accepted on 01 April 2024
 
Abstract: 
Heavy metals are primarily sourced from natural pedo-geochemical backgrounds and anthropogenic occurrences like composting, sewage sludge, aerosol deposition, and waste animal manure. The study aims to determine the heavy metals within the rice mill in Otukpo to understand the spatial distribution with the objectives to examine the heavy metals within the identified activity areas in the Otukpo rice mill, to determine the spatial distribution of heavy metals within the study area and to compare heavy metal values with the acceptable limits. Soil samples were collected from ten locations at Otukpo Rice Mill to analyze heavy metal concentrations. The samples were collected using sterile bottles and a stainless trowel, and the soil samples were analyzed for the concentrations of Cadmium, Copper, Lead, Nickel, Zinc, Mercury, Iron, Arsenic, and Chromium using the Atomic Absorption Spectrophotometry method. The result was analyzed using interpolation to see the variation of the Heavy metals within the various activity areas. The result of the study reveals that Iron has the highest concentration at the Entrance point and lowest at the Generator house with a range value of 3.92 – 1.12mg/kg respectively. The highest concentration of Zinc was recorded at the Mechanic workshop while the lowest is at the Drying point with a range value of 0.135 – 0.872mg/kg respectively. The Husk dumpsite recorded the highest concentration of Copper (0.666mg/kg) with the Drying point recording the least (0.088 mg/kg). The study reveals uneven concentrations and highlights the effectiveness of the Geographic Information System in mapping heavy metal concentrations.
 
Keywords: 
Heavy Metal; Soil; Rice Mill; Spatial Distribution; Concentration; Industrial Areas
 
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Copyright information: 
Copyright © 2024 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0

 

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