ORIGINAL RESEARCH
Variations in the Chemical Properties and Heavy
Metal Concentrations of Transformer Oil Polluted
Soil Inoculated with two Lower Fungi
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1
Department of Botany, University of Ibadan, Nigeria, Nigeria
2
Department of Biology, Sefako Makgatho Health Sciences University, South Africa
3
Department of Microbiology, University of Ibadan, Nigeria
4
Department of Resource and Environment, Northeast Agricultural University Harbin China, China
Submission date: 2021-10-14
Acceptance date: 2021-12-14
Online publication date: 2022-05-31
Publication date: 2022-09-01
Corresponding author
Omasan E. Urhie
Department of Botany, University of Ibadan, Nigeria, Ibadan, Nigeria
Pol. J. Environ. Stud. 2022;31(5):4291-4298
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ABSTRACT
The chemical properties of the soil and heavy metals (6) in transformer oil polluted soil inoculated
with two lower fungi Aspergillus niger (U3) and Aspergillus sp (I5) for the period of 0-10 weeks
was investigated in this study. Soil was collected from three sites from a depth of 0-15 cm and heavy
metals analysis was conducted using Inductively Coupled Plasma Optical Emission Spectrometry
(ICP-OES). The heavy metal concentrations in the soil collected from Ibadan inoculated with the two
fungi vary ranging from 306.82-383.31 mg·kg-1 (Fe), 7.53 -11.02 mg·kg-1 (Mn), 7.71-19.01 mg·kg-1 (Cu),
9.84-11.49 mg·kg-1 (Zn), 7.77-10.56 mg·kg-1 (Mg) and 8.3211.78 mg·kg-1 (Pb) while soil from Warri
had Fe concentration of 76.06-153.10 mg·kg-1, Zn 0.16-0.78 mg·kg-1, Mg 0.32-3.91 mg·kg-1, Pb
0.09-0.35 mg·kg-1 and soil collected from Ughelli had Fe concentration of 91.71-145.98 mg·kg-1 and
0.30-2.85 mg·kg-1. The soil from the study sites were observed to be rich in Fe and Cu but had low
level of lead which is vital as the presence of high level of lead in the soil could be harmful to living
organisms.