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Delineation of Oil – Polluted Sites in Ibeno LGA, Nigeria, Using Geophysical Techniques

Ime R. Udotong; Justina I. R. Udotong; Ofonime U. M. John

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    "description": "Ibeno, Nigeria hosts the operational base of Mobil\nProducing Nigeria Unlimited (MPNU), a subsidiary of ExxonMobil\nand the current highest oil & condensate producer in Nigeria. Besides\nMPNU, other oil companies operate onshore, on the continental shelf\nand deep offshore of the Atlantic Ocean in Ibeno, Nigeria. This study\nwas designed to delineate oil polluted sites in Ibeno, Nigeria using\ngeophysical methods of electrical resistivity (ER) and ground\npenetrating radar (GPR). Results obtained revealed that there have\nbeen hydrocarbon contaminations of this environment by past crude\noil spills as observed from high resistivity values and GPR profiles\nwhich clearly show the distribution, thickness and lateral extent of\nhydrocarbon contamination as represented on the radargram reflector\ntones. Contaminations were of varying degrees, ranging from slight\nto high, indicating levels of substantial attenuation of crude oil\ncontamination over time. Moreover, the display of relatively lower\nresistivities of locations outside the impacted areas compared to\nresistivity values within the impacted areas and the 3-D Cartesian\nimages of oil contaminant plume depicted by red, light brown and\nmagenta for high, low and very low oil impacted areas, respectively\nconfirmed significant recent pollution of the study area with crude\noil.", 
    "language": "eng", 
    "title": "Delineation of Oil \u2013 Polluted Sites in Ibeno LGA, Nigeria, Using Geophysical Techniques", 
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      "id": "CC-BY-4.0"
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    "references": [
      "I. R. Udotong. Oil-impacted sites in Ibeno LGA: A Technical Report\nsubmitted by Page Environmental Consultancy Ltd for Ministry of Niger\nDelta Affairs, Abuja. Unpublished. 2010.", 
      "National Oil Spill Detection and Response Agency, NOSDRA. National\nOil Spill Detection and Response Agency Act . Act No. 15 of 2006.\nAbuja. 2011. Pp. 128.", 
      "Amnesty International Nigeria: Petroleum Pollution and poverty in the\nNiger Delta. Amnesty Int'l, London. 2009.", 
      "I. R. Udotong, J. I. R. Udotong and O. U. M. John. Delineation of Oilpolluted\nsites in Ibeno. I. Using Microbiological and Physicochemical\ncharacterization. In Press. 2015.", 
      "Henriet, J.P. Direct application of the Dar Zarrouk parameters in\ngroundwater surveys. Geophysical Prospecting, Vol. 24. Pp. 212. 1976.", 
      "RPI. Environmental Baseline Studies for the establishment of control\nCriteria And Standards Against Petroleum-related Pollution in Nigeria.\nFinal Report Submitted to the Nigerian National Petroleum Corporation\n(NNPC), Lagos. 1985", 
      "Department of Petroleum Resources, DPR. Environmental Guidelines\nand Standards in the Petroleum Industries in Nigeria, EGASPIN. DPR,\nLagos. 2002."
    "keywords": [
      "Electrical resistivity", 
      "geophysical investigations", 
      "ground penetrating radar", 
      "oil-polluted sites."
    "publication_date": "2015-05-04", 
    "creators": [
        "name": "Ime R. Udotong"
        "name": "Justina I. R. Udotong"
        "name": "Ofonime U. M. John"
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