Haematological Profile in the Oil Producing Localities of Imo State, South-East, Nigeria

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Nnamdi N. Jibiri
Benedict C. Eke


Aim: To determine if oil exploration and production in Ohaji/Egbema and Oguta LGAs have resulted in carcinogenic effects for a specific lifetime from exposures since our secondary data have shown a high percentage of cancer cases from the two LGAs.

Study Design: This was a comparative study aimed at determining whether oil exploration and production in the selected LGAs had resulted in carcinogenic effects for a specific lifetime.

Place and Duration of Study: Ohaji/Egbema, Oguta, Mbaitoli and Onuimo LGAs, Imo State, Nigeria, between June 2014 and August 2018.

Methodology: Haematological estimations were carried out at Silver Press Laboratory, Owerri, Nigeria. The Neubauer counting chamber was used in red blood cell count after the addition of red blood cell diluting fluid. The Neubauer counting chamber was used in white blood cell count after the addition of Turk solution. The platelet was also counted using the Neubauer counting chamber. The differential white blood cells were counted manually after smearing the Leishman’s stained drop of blood onto a glass slide. Olympus CX21FS1 Binocular Microscope was used to examine all blood samples.

Results: The oil-producing LGAs recorded 89% clinically diagnosed leukaemic cases while the non-oil producing LGAs recorded 11% and all results correlated strongly (r = 0.997) with the University of Nigeria Teaching Hospital, Enugu Cancer Registry data.

Conclusion: Overall results have indicated a high level of contamination and exposure in the oil-producing localities.

Imo State, oil exploration, blood samples, haematological estimations, leukaemia

Article Details

How to Cite
Jibiri, N. N., & Eke, B. C. (2019). Haematological Profile in the Oil Producing Localities of Imo State, South-East, Nigeria. Current Journal of Applied Science and Technology, 38(6), 1-27. https://doi.org/10.9734/cjast/2019/v38i630438
Original Research Article


UNSCEAR (United Nations Scientific Committee on the Effects of Atomic Radiation). Sources and Effects of Ionizing Radiation. UNSCEAR Report to the General Assembly,New York: United Nations; 2000.

Mokobia CE, Adebiyi FM, Akpan I, Olise FS, Tchokossa P. Radioassay of prominent Nigerian fossil fuels using gamma and TXRF spectroscopy fuel; 2006;85:1811-1814.

Smith KP, Blunt DL, Williams GP, Arnish JJ, Pfingston M, Herbert J et al. An assessment of the disposal of petroleum industry NORM in non-hazardous land fills. National Petroleum Technology Office, US Department of Energy Report No- DOE/BC/W-31-109-ENG-38-8; 1999.

Vegueria SFJ, Godoy JM, Miekeley N. Environmental impact studies of oil-field offshore platforms, Brazil. Journal of Environmental Radioactivity. 2002;62:29-38.

Amrani D, Cherouati DE. Health effects from radon-222 in drinking water in Algiers. Journal of Radiological Protection. 1999;19 (3):275-279.

Collman GW, Loomis DP, Sandler DP. Childhood cancer mortality and radon concentration in drinking water in North Carolina. British Journal of Cancer. 1991; 85(4):626-629.

Gofman JW. Radiation-induced cancer from low dose exposure: An independent analysis. 1st ed. San Francisco California 94101 USA: Committee for Social Responsibility, Inc. CNR Book Division; 1990.

Abdulkareem F. Epidemiology & incidence of common cancers in Nigeria. Cancer Reg & Epid Workshop; 2009.

ASH (American Society of Haematology). Helping haematologists conquer blood diseases worldwide; 2017.

ACS (American Cancer Society). Understanding your lab test results; 2017.

Walker HK, Hall WD, Hurst JW. Clinical methods: the history, physical and laboratory examinations. Boston: Butterworths; 1990.

AACC (American Association for Clinical Chemistry). Understanding your tests; 2012.

Obasi PC, Henri-Ukoha A, Ukewuihe IS, Chidiebere-Mark NM. Factors affecting agricultural productivity among arable crop farmers in Imo State, Nigeria. American Journal of Experimental Agriculture. 2013; 3(2):443-454.

ISMLS (Imo State Ministry of Lands and Survey). Imo State Ministry of Lands and Survey Publication; 2009.

NPC (National Population Commission). National Population Census Figures, Abuja, Nigeria; 2006.

Wills J. A survey of offshore oil field drilling wastes and disposal techniques to reducethe ecological impact of sea dumping. Sakhalin Environment Watch. 2000;13:23-29.

Okodili N. The other side of Imo oil tale. The Nation, January 02, 2014.

SPDC (Shell Petroleum Development Company). Environmental evaluation report of petroleum companies activities in Imo State; 2009.

Muanya C. Crude oil pollution raises cancer risk among Nigerians. African cancer centre; 2006.

Cancer Registry Unit, University of Nigeria Teaching Hospital (UNTH) Enugu; 2016.

Bamgboye EA. Sample size determination, In: A Companion of Medical Statistics. 3rd ed. Ibadan: Folbam Publishers; 2008: 156.

Divine BJ, Hartman CM. Update of a study of crude oil production workers. 1946-1994. Occupational Environmental Medicine. 2000;57:411-417.

Wakeford R. The cancer epidemiology of radiation. Oncogene. 2004;23:6404-6428.

Dacie JV, Lewis SM. Practical Haematology. London: Churchill Livingstone. 1991:50-56.

Haematology Unit, Federal Medical Centre (FMC) Owerri; 2017.

Osim EE, Akpogomeh BA, Ibu JO, Eno AE. Experimental physiology manual, Department of Physiology, University of Calabar, Calabar. 3rd ed. 2004:60-81.

San Sebastian M, Armstrong B, Cordoba JA, Stephens C. Exposures and cancer incidence near oil fields in the amazon basin of Ecuador. Journal of Occupational Environmental Medicine. 2001;58:517-522.

Sathiakumar N, Delzell E, Cole P, Brill I, Frisch J, Spivey G. A case-control study of leukaemia among petroleum workers. Journal of Occupational Environmental Medicine. 1995;37(11):1269-1277.

Yang C, Zhang X. Incidence survey of leukaemia in China. China Medical Science Journal. 1991;6:65-70.