Modeling Soil Organic Carbon in Crude Oil Contaminated Soil in the Niger Delta



  •   B. C. Okoro

  •   J. C. Osuagwu

  •   A. N. Nwachukwu

  •   J. C. Agunwamba


Oil spillage is a major environmental threat in south south of Nigeria where most of oil exploration and exploitation activities takes place. If this goes on unchecked or poorly managed, it would lead to total annihilation of the ecosystem. The objective of this study is to develop a model for the prediction of potassium depletion in the crude oil contaminated soil with time using regression analysis. Each sample containing 10kg of soil was artificially polluted with 0.5, 1.0, 1.5, 2.0, and 2.5 liters of crude oil (Bonny Light).  The potassium concentrations were determined using standard methods. Results shows that the concentration of residual potassium in the soil for all the volumes of crude oil introduced into the soil decrees significantly with time when compared to values obtained for the control samples. The concentration of residual concentration in the control soil sample was about three times higher than the concentration obtained for other samples. The results obtained from the derived model were very close to the experimental value. The model is suitable for determining potassium content in crude oil polluted site.

Keywords: Crude Oil, Pollution, Soil Organic Carbon, Model, Fluctuation


S. C. Okwuosha (2000) physico-chemical characterization of soil under the influence of gas flaring. A thesis submitted to the department of Crop and Soil Technology (pp 74 -88). Federal University of technology Owerri Imo State.

L.L. Nwaogazie, (2006). Probability and Statistics for Science and Engineering Practice. University of Portharcourt press, Portharcourt Nigeria, pp. 1 – 12.

T.A. Abii & P.C. Nwosu, (2009). The Effect of oil Spillage on the soil of Eleme in Rivers State of the Niger-Delta Area of Nigeria. Research Journal Environmental Science, 3:316 – 320.

E.A. Akinrinde & G.O. Obigbesan, (2000). Evaluation of Fertility Status of Selected Soils for Crop Production in five Ecological Areas of Nigeria. Proc. 26th Annual Conf. Soil Sci. Soc. Nig. Ibadan, Oyo State. Pp. 279 – 288.

I.E. Akpan (2014). Data requirements for modeling nutrient depletion in crude oil contaminated soil (Final year student project).

O. C. Alaba & E. O. Ifelola (2011). Impact Assessment of Oil Spillage on Farmland of some Communities in Ilage area of Ondo State, Nigeria. Journal of Environmental Science and Engineering, 5:1581 – 1584.

A. O. Atubi & P. C. Onokala, (2006). The Socio-economic effects of oil spillage on Agriculture in the Niger Delta. Journal of Environmental Studies 2:50 – 56.

C. N Ngobiri; A. A. Ayuk, & I. I. Awunuso, (2007) Differential degradation of Hydrocarbon fraction during Bioremediation of Crude Oil Polluted sites in the Niger Delta Area. Journal of Chem. Soc. Nig. 32:151 - 158

J. Krishnakumar & E. Ronchetti, (2000). Panel Data Econometrics: Future Directions, Papers in Honor of Professor Pietro Balestra. Amsterdam: North Holland, pp. 6 – 13.

B. Jr. Jones (2001). Laboratory Guide for Conducting Soil Test and Plant Analysis, Wisconsin U.S.A, pp. 5 – 7.

A. Lewbel, (1979). “Efficient Estimation of Dynamic Error Components Models with Panel Data,” Discussion Paper No. 79 – 118. Center for Economic Research, University of Minnesota.

S. O. Orajaka, (1975). Geology in ofomata, GEK (ed), Nigeria in Maps: eastern states, Benin City ethiope publishing house. Pp 5-7

W.O. Enwezor, A.C. Ohiri, E.E. Opowaribo, & E.J. Udo (1990). A review of soil fertilizer use in crops in Southern zone of Nigeria (in five volumes). Produced by the Fed. Min. of Agric. and National Research, Lagos.

D.W. Nelson and L.E. Sommers, 1982. Total carbon, organic carbon and organic matter: In: A.L. Page, R.H.Miller and D.R. Keeney) Methods of soil analysis. Part 2 Chemical and Microbiological Properties, pp: 539-579.


Download data is not yet available.


How to Cite
NWAKWASI, L., Okoro, B., Osuagwu, J., Nwachukwu, A. and Agunwamba, J. 2019. Modeling Soil Organic Carbon in Crude Oil Contaminated Soil in the Niger Delta. European Journal of Engineering and Technology Research. 4, 3 (Mar. 2019), 93-96. DOI: