Impact of spent engine oil on soil and the growth of Zea mays seeds
Journal Title: Scientific Journal of Environmental Sciences - Year 2012, Vol 1, Issue 1
Abstract
The impact of waste engine oil on soil and the growth of Zea mays seeds were investigated in this paper. Three concentrations of 500mL, 1000mL, and 1500mL waste engine oil applied to the soil affected the soil and growth of Zea mays seeds. The pH of soil increased from 6.0 (control) to 6.7 (1500mL), moisture content decreased significantly [p<0.05] from 12.0 to 10.9%, while phosphorus decreased significantly [p<0.05] from 35.0 to 20.0 mg/kg. The reductions in the measured parameters were significant at [p<0.05]. Potassium decreased from 0.20+0.01 to 0.18+0.06 umol/kg, magnesium from 2.80 ±0.02 to 1.80±0.01umol/kg, and calcium from 7.40+0.04 to 6.24+ 0.01 umol/kg. Germination of the seed, growth rate and leaf spread were also delayed. This study showed to a great extent that spent engine oil affects vegetative land and suggests that plants could be used as bio-indicators of pollution in oil producing and oil spillage prone areas of the Niger Delta of Nigeria.
Authors and Affiliations
F. O. Uhegbu*| Department of Biochemistry, Faculty of Biological and Physical Sciences. Abia State University. PMB 2000 Uturu, Nigeria., E. I. Akubugwo| Department of Biochemistry, Faculty of Biological and Physical Sciences. Abia State University. PMB 2000 Uturu, Nigeria., E. J. Iweala| Department of Biological Sciences (Biochemistry and Molecular Biology Unit), College of Science and Technology, Covenant University, P.M.B 1023, Ota, Ogun State, Nigeria., O. C. Uhegbu| Department of Chemical Engineering, University of Port-Harcourt, PMB 2523 Port-Harcourt, Nigeria.
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