Hydrocarbon Profile of Oil-Spill-Impacted Soils from Ogoni in Rivers State, Nigeria

Menkiti, Nora Azuka *

Institute of Natural Resources, Environment and Sustainable Development, University of Port Harcourt, Nigeria.

Osuji, Leo C.

Institute of Natural Resources, Environment and Sustainable Development, University of Port Harcourt, Nigeria and Department of Industrial Chemistry, University of Port Harcourt, East West Road, P.M.B 5323 Port Harcourt. Rivers State, Nigeria.

Onojake, M. C.

Institute of Natural Resources, Environment and Sustainable Development, University of Port Harcourt, Nigeria and Department of Industrial Chemistry, University of Port Harcourt, East West Road, P.M.B 5323 Port Harcourt. Rivers State, Nigeria.

*Author to whom correspondence should be addressed.


This research examined the total extractable hydrocarbon content comprising of polycyclic aromatic hydrocarbons (PAHs), total petroleum hydrocarbons (TPHs), total hydrogen carbon (THC) and total organic nitrogen (TON) of an oil-spill-impacted site in Ogoni land, Okenta Alode, Eleme local government area, Rivers state, Nigeria. Sediment samples of crude oil hydrocarbon contaminated soils were randomly collected from different points at the study sites. Samples were collected between 0 - 15cm (surface m level) and 15 - 30cm (in-depth level) with soil auger and thereafter bulked to obtain composite sample. Bio remediated soil, obtained at about 200 m away from the contaminated site was also collected making a total of twelve (12) samples, with the coordinates of the locations recorded with a GPS device. The samples collected in sterile non-reactive polythene bags and transported using icepacks to the laboratory for analyses and the sediments stored at 6°C and extracted within 14 days of collection. The result of the study revealed among others that the oil-spill-impacted sites contain high concentration of TPH, as the highest concentration obtained from the different sites was 298.57 mg/kg and the lowest was 100.80 mg/kg. Also, the in-depth samples contain higher concentrations than the surface level samples, while similar results were also observed for PAHs and THC. The THC values for surface level samples are in the order of P3/S/O2 (129.000 mg/kg) > P5/S/O1 (229.300 mg/kg) > P1/S/O1 (232.200 mg/kg) > P4/S/O1 (256.111 mg/kg) > P2/S/O1 (303.100 mg/kg). The PAHs concentration in the sediment were within the acceptable limits and showed trend of DBA > Chr > BbFL > Ind > BaA > BkFL > Pyr > Fl > Flu > Ant > AcPY > Phen > AcP > NaP. There was no non-carcinogenic and carcinogenic risk posed to the populace as a result of PAHs contamination. Thus, the result suggest that these sediments may be contaminated with PAHs, TPH and THC and has reduced TON due to hydrocarbon contamination which may reduce plant growth in the study area. It recommends that these contaminations resulting from hydrocarbons be contained to prevent it from resulting to deleterious health effects to the exposed populace.

Keywords: Hydrocarbons, sediment, remediated, contaminated, polycyclic aromatic hydrocarbons, total organic nitrogen

How to Cite

Azuka, M. N., Leo C. , O., & M. C. , O. (2023). Hydrocarbon Profile of Oil-Spill-Impacted Soils from Ogoni in Rivers State, Nigeria. Asian Journal of Applied Chemistry Research, 13(2), 1–15. https://doi.org/10.9734/ajacr/2023/v13i2238


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Egedeuzu SC, Nnorom IC. Total petroleum hydrocarbon and metal contents of soil, plant and borehole water samples from crude oil spill sites in Owaza, Abia State. Journal of Environmental Science and Technology. 2013;3:405–416.

Baird J. Oil’s shame in Africa. News Week Magazine. 2010;8–9.

Marquès M, Mari M, Audi-Mirò C, Sieera J, Soler A, Nadal M, Domingo JL. Climate change impact on the PAH photo-degradation in soils: characterization and metabolites identification. Environment International. 2016a;89:155-165.

Udoetok IA, Akpanudo NW, Uwanta EJ, Ukpong EJ. Associated petroleum hydrocarbons and heavy metals of an oil spilled site in the Niger Delta Nigeria. Global Journal of Pure and Applied Sciences. 2009;17(3):261–265.

Bjorlykke K. Petroleum geosciences: From sedimentary environments to rock physics. Journal of Springer. 2011;511-517.

Paul WS, Steve RK, Richard AFW, Jennifer LB, Wilma AS, Scott AP. Distribution and concentration of petroleum hydrocarbons associated with the B/P deep water horizon oil spill, Gulf Mexico. Marine Pollution Bulletin. 2013;73:129-143.

TPHCWG. Total Petroleum Hydrocarbon Criteria Working Group. Selection of representatives Tph fractions based on fate and transport consideration. Amherst Scientific Publishers, Amherst. 2009; 2–10.

Gina LS, Yulinah T, Ni M. Petroleum hydrocarbons pollution in soil and surface water public oil fields in Wonocolo Subdistrict, Indonesia. Journal of Ecological Engineering. 2018;19(2): 184-193.

Das N, Chandran P. Microbial degradation of petroleum hydrocarbon contaminants. Journal of Biotech Resource International. 2011;1–13.

Chorom M, Hosseini SS. Bioremediation of crude oil polluted soil by sewage sludge. Journal of Penologist. 2011;294–301.

Kathi S, Khan AB. Phytoremediation approaches to PAH contaminated soil. Indian Journal of Science and Technology. 2011;4(1):56-63.

Devatha CP, Vishal AV, Rao JPC. Investigation of physical and chemical characteristics of soil due to crude oil contamination and its remediation. Journal of Applied Water Science. 2019;9(89): 2–10.

Ekpo MA, Nwaankpa IL. Effect of crude oil on micro-organism and growth of ginger (Zingiber officinale) in the tropics. Journal of Sustainable Tropical Agriculture Resources. 2005;16:67–71.

Chukwuma CC, Onuah CL, Nwauche KT, Ohanador R, Chukwu CN, Effiong E. periodic effects of crude oil pollution on some nutrient elements of soils treated over a 90 day period using Schwenkia americana L. and Spermacoce ocymoides Burm .F. International Journal of Advances in Scientific Research and Engineering. 2018;4(12):7–15.

Ayodele AO. Effects of oil spillage on soils nutrients of selected communities in Ogoni land, South Eastern Niger Delta, Rivers State, Nigeria. International Journal of Ecology and Eco solution. 2019;6(3): 23-36.

Ekpo MA. Microbial degradation of petroleum drilling and activities and plant root development. World Journal of Biotechnology. 2002;3:377-386.

Assunção MA, Frena M, Santos AP, dos Santos Madureira LA. Aliphatic and polycyclic aromatic hydrocarbons in surface sediments collected from mangroves with different levels of urbanization in southern Brazil. Marine pollution bulletin. 2017 Jun 15;119(1): 439-45.

Chukwu ED, Udo BT. Effects of crude oil and industrial waste pollution on some soil chemical properties in Ikot -Abasi, Niger Delta Area, Nigeria. Proceedings of The 38th Annual Conference of the Soil Science Society of Nigeria (Sssn), 10–14th March; 2014.

Kalagbor IA, Dibofori-Orji AN, Ekpete OA. Exposure to heavy metals in soot samples and cancer risk assessment in Port Harcourt, Nigeria. Journal of Health & Pollution. 2019;9.

Nduka JK, Orisakwe OE. Water quality issues in the Niger Delta of Nigeria: Polyaromatic and Straight Chain Hydrocarbons in Some Selected Surface Waters. Water Qual Expo Health. 2010; 2:65–74. DOI:https://doi.org/10.1007/s12403-010-0024-5

Bona C, Rezende I, Santos G, Souza L. Effect of soil contaminated by diesel oil on the germination of seeds and the growth of Schinus terebinthifoilus. Brazilian Archives of Biology and Technology. 2011;54(6): 1379–1387. DOI:10.1590/S1516-89132011000600025

Nwankwo IL, Ekeocha NE, Ikoro DO. Evaluation of Deviation of Some Soil Contamination Indicators Due to Oil Spillage in Akinima, Rivers State published at: Scientific Research Journal (Scirj). 2015;3(7):19-24, July 2015 Edition.