Welcome to International Network for Natural Sciences I INNSpub

Paper Details

Research Paper | February 1, 2012

| Download

The status of the soil microbial flora and oil content of Imore, a coastal community in Lagos state, Nigeria after petroleum spill and fire outbreak

Renner Kofi Omare, Agwu Ogochukwu Angela

Key Words:

Int. J. Biosci.2(2), 27-35, February 2012


IJB 2012 [Generate Certificate]


Petroleum spill on soil is perilous, however, natural occurring hydrocarbon degrading microorganisms have the capacity to utilize the hydrocarbon as source of carbon and energy, thereby, enhancing their transformation and mineralization. Therefore, to ascertain the extent of damage and natural restoration of an oil spill site, this study compared its microbial flora and hydrocarbon content with an adjacent unpolluted zone, after 40 weeks. The results revealed that the number of heterotrophic bacteria and hydrocarbon utilizers remained at least one order of magnitude higher in the polluted zones (2.5 x 107 to 3.2 x 104) than in the unpolluted zone (2.3 x 10 3 to 2.8 x 104) throughout the study period. Conversely, the fungi population, which was three orders of magnitude higher at 0 d, drastically decreased later (120 – 150 d) with all zones having approximately 1.3 x 104 cfug-1. At the end of the study, the extent of oil reduction was 1.6 % at the control zone while the polluted sites showed between 33 to 35%. The rate of hydrocarbon reduction was between 9.2 x10-5 to 9.9 x 10-5 mgd-1by 90 d, but declined to 3.3 x 10-5 to 4.1 x 10-5 mgd-1by 150 d. Consequently, though the soil microbial flora seems to have adapted to the excess oil, the extent and rate of oil removal is not satisfactory, hence, additional remediation treatment is required for complete restoration.


Copyright © 2012
By Authors and International Network for
Natural Sciences (INNSPUB)
This article is published under the terms of the Creative
Commons Attribution Liscense 4.0

The status of the soil microbial flora and oil content of Imore, a coastal community in Lagos state, Nigeria after petroleum spill and fire outbreak

Adebusoye SA, Ilori MO, Obayori OS, Oyetibo GO, Akindele KA, Amund OO. 2010. Efficiency of cassava steep liquor for bioremediation of diesel oil- contaminated tropical agricultural soil. Environmentalist 30, 24–34.

Anoliefo GO, Isikhuemhen OS, Ohimain EI. 2006. Sensitivity of the common bean (Vigna unguiculata) and maize (Zea mays) to different soil types from the crude oil drilling sites at Kutchalli, Nigeria Journal of Soils and Sediments 6, 30-36.

Atlas RM, Cerniglia CE. 1995. Bioremediation of Petroleum Pollutants. Bioscience 45, 332-338.

Bagherzadeh-Namazi A, Shojaosadati SA, Hashemi-Najafabadi S. 2008. Biodegradation of Used Engine Oil Using Mixed and Isolated Cultures. Int. J. Environ. Res. 2, 431-440.

Balba  MT,  Al-Awadhi  N,  Al-Daher  R.  1998. Bioremediation of oil-contaminated soil: microbiological methods for feasibility assessment and field evaluation. Journal of Microbiological Methods 32, 155–164.

Barnett HL, Hunter BB. 1972. Illustrated Genera of Fungi Imperfecti. 3rd. Ed., Burgess Publication Co., Minneapolis.

Barrow GI, Feltham RKA. 1995. Cowan and Steel’s manual for identification of medical bacteria, 3rd edition. Cambridge University, Cambridge.

Bauchop T, Elsden SR. 1960. The growth of microorganisms in relation to their energy. Journal of General Microbiology 23, 457-459.

Bossert I, Bartha R. 1984. The fate of petroleum in soil ecosystems. In: Atlas RM, ed. Petroleum Microbiology. New York : Macmillian publishing. Co., 435 – 474.

Bordenave S, Gon˜i-Urriza MS, Caumette P, Robert Duran R. 2007. Effects of Heavy Fuel Oil on the Bacterial Community Structure of a Pristine Microbial Mat. Applied and Environmental Microbiology 73, 6089–6097.

George-Okafor U, Tasie F, Muotoe-Okafor F. 2009. Hydrocarbon Degradation Potentials of Indigenous Fungal Isolates from Petroleum Contaminated Soils. Journal of Physical and Natural Sciences 3, 1-6.

Human Rights Watch. 2004. The price of oil, 114.

Kastner M, Breuer-Jammali M, Mahro B. 1994. Enumeration and characterisation of the soil microflora from hydrocarbon-contaminated soil sites able to mineralise polycyclic aromatic hydrocarbons. Applied Microbiology and Biotechnology 41, 267-273.

Kinako FDS. 1997. Short term Effects of oil pollution on species number and productivity of a simple terrestrial eco system. Environmental Pollution Series 26, 67– 91.

Leahy JG., Colwell RR. 1990. Microbial degradation of hydrocarbons in the environment. Microbiological Reviews 54, 305 – 315.

Maliszewska-Kordybach B, Smreczak B. 2003. Habitat function of agricultural soils as affected by heavy metals and polycyclic aromatic hydrocarbons contamination. Environment International 28, 719 – 728.

Nigerian Oil Directory. 1989. John West publications limited, 200.

Nwachukwu SCU. 2001. Bioremediation of sterile agricultural soils polluted with crude petroleum by application of the soil bacterium, Pseudomonas putida, with inorganic nutrient supplementations. Current Microbiology 42, 231–236.

Nyman, JA. 1999. Effect of Crude Oil and Chemical Additives on Metabolic Activity of Mixed Microbial Populations in Fresh Marsh Soils. Microbiology and Ecology 37, 152-162.

Osuji  LC,  Egbuson  EJ,  Ojinnaka  CM.  2006. Assessment and treatment of hydrocarbon inundated Soils using inorganic nutrient (N-P-K) supplements: II. A Case study of Eneka oil spillage in Niger Delta, Nigeria. Environmental Monitoring and Assessment 115, 265–278.

Osuno B. 1989. Nigeria to intensify oil monitoring. OPEC Bulletin. OPEC Vienna 6, 67–71.

Raymond RL, Hudson JO, Jamison VW. 1976. Oil degradation in soil. Applied and Environmental Microbiology 31, 522–533.

Roelof van der Meer, J. 2006. Environmental Pollution Promotes Selection of Microbial Degradation Pathways.Frontiers. Ecology and the Environment 4, 35-42.

Ronald M, Atlas RM. 1978. Microorganisms and Petroleum Pollutants. Bioscience 28, 387-391.

Saul DJ, Aislabie JM, Brown CE, Lisa HL, Foght JM. 2005. Hydrocarbon contamination changes the bacterial diversity of soil from around Scott Base, Antarctica. FEMS Microbiology Ecology 53, 141–155.

Song, H, Wang X, Bartha R. 1990. Bioremediation Potential of Terrestrial Fuel Spills. Applied and Environmental Microbiology 56, 652-656.

Van  Hamme  JD,  Singh  A,  Ward  OP  2003. Recent advances in Petroleum Microbiology. Microbiology and Molecular Biology Reviews 67, 503-549.


Style Switcher

Select Layout
Chose Color
Chose Pattren
Chose Background