Journal of Environment Pollution and Human Health
ISSN (Print): 2334-3397 ISSN (Online): 2334-3494 Website: Editor-in-chief: Dibyendu Banerjee
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Journal of Environment Pollution and Human Health. 2015, 3(3), 62-69
DOI: 10.12691/jephh-3-3-2
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Assessment of Cadmium and Lead Distribution in the Outcrop Rocks of Abakaliki Anticlinorium in the Southern Benue Trough, Nigeria

Usoro M. Etesin1, Aniefiok E. Ite1, 2, , Thomas A. Harry3, Clement E. Bassey3 and Edet W. Nsi1

1Department of Chemistry, Akwa Ibom State University, P.M.B. 1167, Uyo, Akwa Ibom State, Nigeria

2Research and Development Unit, Akwa Ibom State University, P.M.B. 1167, Uyo, Akwa Ibom State, Nigeria

3Department of Geosciences, Akwa Ibom State University, P.M.B. 1167, Uyo, Akwa Ibom State, Nigeria

Pub. Date: November 12, 2015

Cite this paper:
Usoro M. Etesin, Aniefiok E. Ite, Thomas A. Harry, Clement E. Bassey and Edet W. Nsi. Assessment of Cadmium and Lead Distribution in the Outcrop Rocks of Abakaliki Anticlinorium in the Southern Benue Trough, Nigeria. Journal of Environment Pollution and Human Health. 2015; 3(3):62-69. doi: 10.12691/jephh-3-3-2


This study investigates the distribution of cadmium and lead concentrations in the outcrop rock samples collected from Abakaliki anticlinorium in the Southern Benue Trough, Nigeria. The outcrop rock samples from seven sampling locations were air–dried for seventy–two hours, homogenized by grinding and pass through < 63 micron mesh sieve. The ground and homogenized rock samples were pulverized and analyzed for cadmium and lead using X-Ray Fluorescence Spectrometer. The concentrations of heavy metals in the outcrop rock samples ranged from < 0.10 – 7.95 mg kg–1 for cadmium (Cd) and < 1.00 – 4966.00 mg kg–1 for lead (Pb). Apart from an anomalous concentration measured in Afikpo Shale (Middle Segment), the results obtained revealed that rock samples from all the sampling locations yielded cadmium concentrations of < 0.10 mg kg–1 and the measured concentrations were below the average crustal abundance of 0.50 mg kg–1. Although background concentration of <1.00 ± 0.02 mg kg–1 was measured in Abakaliki Shale, rock samples from all the sampling locations revealed anomalous lead concentrations above average crustal abundance of 30 mg kg–1. The results obtained reveal important contributions towards understanding of heavy metal distribution patterns and provide baseline data that can be used for potential identification of areas at risk associated with natural sources of heavy metals contamination in the region. The use of outcrop rocks provides a cost–effective approach for monitoring regional heavy metal contamination associated with dissolution and/or weathering of rocks or parent materials. Evaluation of heavy metals may be effectively used in large scale regional pollution monitoring of soil, groundwater, atmospheric and marine environment. Therefore, monitoring of heavy metal concentrations in soils, groundwater and atmospheric environment is imperative in order to prevent bioaccumulation in various ecological receptors.

cadmium lead rock outcrop mineralization shale contamination

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[1]  Davies, B. E., “Trace Element Pollution,” Applied Soil Trace Elements, B. E. Davies, ed., pp. 287-351: John Wiley & Sons, 1980.
[2]  Etesin, U. M., and N. U. Benson, “Cadmium, copper, lead and zinc tissue levels in Bonga Shad (Ethmalosa fimbriata) and Tilapia (Tilapia guineensis) Caught from Imo River, Nigeria,” Am. J. Food Technol, 2 (1). 48-54, 2007.
[3]  Peterson, P. J., and B. J. Alloway, “Cadmium in Soils and Vegetation,” Topics in environmental health, 1979.
[4]  Thornton, I., and J. S. Webb, “Regional Distribution of Trace Element Problems in Great Britain,” Applied Soil Trace Elements, B. E. Davies, ed., pp. 381-439, 1980.
[5]  Khan, D. H., and B. Frankland, “Chemical forms of cadmium and lead in some contaminated soils,” Environmental Pollution Series B, Chemical and Physical, 6 (1). 15-31, 1983.
[6]  Martin, M. H., and P. J. Coughtrey, Biological Monitoring of Heavy Metal Pollution: Land and Air: Applied Science Publishers, 1982.
[7]  Warren, L. J., “Contamination of sediments by lead, zinc and cadmium: A review,” Environmental Pollution Series B, Chemical and Physical, 2 (6). 401-436, 1981.
[8]  Wilkins, C., “The distribution of lead in the soils and herbage of West Pembrokeshire,” Environmental Pollution (1970), 15 (1). 23-30, 1978.
[9]  Chaanda, M., N. Obaje, A. Moumouni, N. Goki, and A. Lar, “Environmental Impact of Artesanal Mining of Barytes in Azara Area, Middle Benue Trough, Nigeria,” Online Journal of Earth Sciences, 4 (1). 38-42, 2010.
[10]  Ezeh, H., and E. Chukwu, “Small scale mining and heavy metals pollution of agricultural soils: The case of Ishiagu Mining District, South Eastern Nigeria,” Journal of Geology and Mining Research, 3 (4). 87-104, 2011.
[11]  Nweke, F., A. Okaka, and E. Offor, “Lead, zinc and pH concentrations of Enyigba soils in Abakaliki local Government Area of Ebonyi State, Nigeria,” African Journal of Biotechnology, 7 (14). 2008.
[12]  Okogbue, C., and S. Ukpai, “Evaluation of trace element contents in groundwater in Abakaliki metropolis and around the abandoned mine sites in the southern part, Southeastern Nigeria,” Environmental Earth Sciences, 70 (7). 3351-3362, 2013.
[13]  Nganje, T. N., C. I. Adamu, and E. E. Ukpong, “Heavy metal concentrations in soils and plants in the vicinity of Arufu lead-zinc mine, Middle Benue Trough, Nigeria,” Chinese Journal of Geochemistry, 29 (2). 167-174, 2010.
[14]  Rapheal, O., and K. S. Adebayo, “Assessment of trace heavy metal contaminations of some selected vegetables irrigated with water from River Benue within Makurdi Metropolis, Benue State Nigeria,” Benue State Nigeria, Advances in Applied Science Research, 2 (5). 590-601, 2011.
[15]  Singh, R., N. Gautam, A. Mishra, and R. Gupta, “Heavy metals and living systems: An overview,” Indian Journal of Pharmacology, 43 (3). 246-253, 2011.
[16]  Islam, E. u., X.-e. Yang, Z.-l. He, and Q. Mahmood, “Assessing potential dietary toxicity of heavy metals in selected vegetables and food crops,” Journal of Zhejiang University. Science. B, 8 (1). 1-13, 2007.
[17]  Chaney, R. L., J. A. Ryan, Y. M. Li, and S. L. Brown, “Soil Cadmium as a Threat to Human Health,” Cadmium in Soils and Plants, Developments in Plant and Soil Sciences M. J. McLaughlin and B. R. Singh, eds., pp. 219-256: Springer Netherlands, 1999.
[18]  Benkhelil, J., “The origin and evolution of the Cretaceous Benue Trough (Nigeria),” Journal of African Earth Sciences (and the Middle East), 8 (2). 251-282, 1989.
[19]  Nwachukwu, S. O., “The tectonic evolution of the the southern portion of the Benue Trough, Nigeria,” Geological Magazine, 109 (05). 411-419, 1972.
[20]  Benkhelil, J., “Benue Trough and Benue Chain,” Geological Magazine, 119 (02). 155-168, 1982.
[21]  PETTERS, S. W., “Mid-Cretaceous paleoenvironments and biostratigraphy of the Benue Trough, Nigeria,” Geological Society of America Bulletin, 89 (1). 151-154, 1978.
[22]  Ajayi, C. O., and D. E. Ajakaiye, “The Dead Sea Rift The origin and peculiarities of the nigerian benue trough: Another look from recent gravity data obtained from the middle benue,” Tectonophysics, 80 (1). 285-303, 1981.
[23]  Fitton, J. G., “The Benue trough and cameroon line — A migrating rift system in West Africa,” Earth and Planetary Science Letters, 51 (1). 132-138, 1980.
[24]  Petters, S. W., “Stratigraphic Evolution of the Benue Trough and Its Implications for the Upper Cretaceous Paleogeography of West Africa,” The Journal of Geology, 86 (3). 311-322, 1978.
[25]  Enu, E. I., “Sukuliye (Sekule) Formation; facies equivalent of the Numanha Formation in the Upper Benue Trough. Nigeria,” J. Min. Geol, 17 91-95, 1980.
[26]  Guiraud, M., “Late Jurassic rifting-early Cretaceous rifting and late Cretaceous transpressional inversion in the upper Benue basin (NE Nigeria),” Bulletin des Centres de Recherches Exploration-Production Elf Aquitaine, 17 (2). 371-383, 1993.
[27]  Mboringong, M. N., A. Olasehinde, R. P. Tabale, A. Yusuf, and E. C. Ashano, “Evaluation of Arsenic Concentration in Rocks of Kaltungo Area, Upper Benue Trough, Nigeria,” Journal of Natural Sciences Research, 3 (4). 25-30, 2013.
[28]  Zaborski, P. M. P., “The Cenomanian and Turonian (mid-Cretaceous) ammonite biostratigraphy of north-eastern Nigeria,” Bulletin of the British Museum, Natural History. Geology, 46 (1). 1-18, 1990.
[29]  Zaborski, P. M. P., F. Ugodulunwa, A. Idornigie, P. Nnabo, and K. M. Ibe, “Stratigraphy and structure of the Cretaceous Gongola Basin, northeast Nigeria,” Bulletin des Centres de Recherches Exploration-Production Elf Aquitaine, 21 (1). 153-185, 1997.
[30]  Obaje, N. G., Geology and mineral resources of Nigeria, Berlin; London: Springer, 2009.
[31]  Iorfa, A. C., N. Ntonzi, E. E. Ukwang, I. K. Abara, and P. Neji, “A study of the distribution pattern of heavy metals in surface soils around Arufu Pb-Zn mine, northeastern Nigeria, using factor analysis,” Res J Chem Sci, 1 (2). 70-80, 2011.
[32]  Alloway, B. J., “Introduction,” Heavy Metals in Soils: Trace Metals and Metalloids in Soils and their Bioavailability, Environmental Pollution B. J. Alloway, ed., pp. 3-9: Springer Netherlands, 2013.
[33]  Selim, H. M., and M. C. Amacher, Reactivity and Transport of Heavy Metals in Soils: Taylor & Francis, 1996.
[34]  Siegel, F., “Heavy Metals Mobility/Immobility in Environmental Media,” Environmental Geochemistry of Potentially Toxic Metals, pp. 45-59: Springer Berlin Heidelberg, 2002.
[35]  Olade, M., “Dispersion of cadmium, lead and zinc in soils and sediments of a humid tropical ecosystem in Nigeria,” Lead, mercury, cadmium and arsenic in the environment, scope, 31 303-313, 1987.
[36]  Alloway, B. J., and E. Steinnes, “Anthropogenic Additions of Cadmium to Soils,” Cadmium in Soils and Plants, Developments in Plant and Soil Sciences M. J. McLaughlin and B. R. Singh, eds., pp. 97-123: Springer Netherlands, 1999.
[37]  Etesin, U. M., E. Udoinyang, and T. Harry, “Seasonal Variation of Physicochemical Parameters of Water and Sediments from Iko River, Nigeria,” Journal of Environment and Earth Science, 3 (8). 96-110, 2013.
[38]  Zovko, M., and M. Romic, Soil contamination by trace metals: geochemical behaviour as an element of risk assessment: INTECH Open Access Publisher, 2011.
[39]  Huang, S., J. Tu, H. Liu, M. Hua, Q. Liao, J. Feng, Z. Weng, and G. Huang, “Multivariate analysis of trace element concentrations in atmospheric deposition in the Yangtze River Delta, East China,” Atmospheric Environment, 43 (36). 5781-5790, 2009.
[40]  Farrington, J. L., “A preliminary description of the Nigerian lead-zinc field,” Economic Geology, 47 (6). 583-608, 1952.
[41]  Hawkes, H. E., Geochemical prospecting investigations in the Nyeba lead-zinc district, Nigeria, US Govt. Print. Off., 1954.
[42]  Ite, A. E., I. I. Udousoro, and U. J. Ibok, “Distribution of Some Atmospheric Heavy Metals in Lichen and Moss Samples Collected from Eket and Ibeno Local Government Areas of Akwa Ibom State, Nigeria,” American Journal of Environmental Protection, 2 (1). 22-31, 2014.
[43]  Ehinola, O. A., “Biostratigraphy and depositional environment of the oil shale deposit in the Abakaliki Fold Belt, southeastern Nigeria,” Oil shale, 27 (2). 99-125, 2010.
[44]  Reyment, R. A., Aspects of the Geology of Nigeria: The Stratigraphy of the Cretaceous and Cenozoic Deposits: Ibadan University Press, 1965.
[45]  Olade, M. A., On the genesis of Lead-Zinc deposits in Nigeria's Benue rift (Aulacogen): a re-interpretation, 1976.
[46]  Goto, A., and Y. Tatsumi, “Quantitative Analysis of Rock Samples by an X-Ray Fluorescence Spectrometer (I),” The Rigaku Journal, 11 (1). 40-59, 1994.
[47]  Lee, C., J. Tsai, H. Ho, T. Yang, S. Chung, and C. Chen, “Quantitative analysis in rock samples by an X-ray fluorescence spectrometer (I) major elements.” pp. 418-420.
[48]  Takahashi, G., “Sample Preparation for X-Ray Fluorescence Analysis III. Pressed and Loose Powder Methods “ The Rigaku Journal, 31 (1). 26-30, 2015.
[49]  Shibata, Y., J. Suyama, M. Kitano, and T. Nakamura, “X-Ray Fluorescence Analysis of Cr, As, Se, Cd, Hg, and Pb in Soil sing Pressed Powder Pellet and Loose Powder Methods,” X-Ray Spectrometry, 38 (5). 410-416, 2009.
[50]  Siegel, F. R., Environmental Geochemistry of Potentially Toxic Metals: Springer Berlin Heidelberg, 2002.
[51]  Fouad, H. K., and R. M. El-Rakaiby, “Environmental geochemistry for heavy metals and uranium potentiality in oil shale sediments, Quseir, Red Sea, Egypt,” Journal of Applied Sciences Research(August). 914-921, 2009.
[52]  Hans Wedepohl, K., “The Composition of the Continental Crust,” Geochimica et Cosmochimica Acta, 59 (7). 1217-1232, 1995.
[53]  Hawkes, H. E., and J. S. Webb, “Geochemistry in Mineral Exploration,” 1962.
[54]  Krauskopf, K. B., and D. K. Bird, Introduction to Geochemistry: McGraw-Hill New York, 1967.
[55]  McGrath, S. P., and P. J. Loveland, The soil geochemical atlas of England and Wales: Blackie Academic & Professional, 1992.
[56]  Holmgren, G. G. S., M. W. Meyer, R. L. Chaney, and R. B. Daniels, “Cadmium, Lead, Zinc, Copper, and Nickel in Agricultural Soils of the United States of America,” Journal of Environmental Quality, 22 (2). 335-348, 1993.
[57]  Chen, J., F. Wei, C. Zheng, Y. Wu, and D. Adriano, “Background concentrations of elements in soils of China,” Water, Air, and Soil Pollution, 57-58 (1). 699-712, 1991.
[58]  Traina, S. J., “The Environmental Chemistry of Cadmium,” Cadmium in Soils and Plants, Developments in Plant and Soil Sciences M. J. McLaughlin and B. R. Singh, eds., pp. 11-37: Springer Netherlands, 1999.
[59]  Alloway, B. J., Heavy Metals in Soils: Blackie Academic & Professional, 1995.
[60]  McBride, M. B., Environmental Chemistry of Soils: Oxford University Press, 1994.
[61]  McLaughlin, M. J., and B. R. Singh, Cadmium in Soils and Plants: Springer Netherlands, 1999.
[62]  Goodchild, M. F., B. O. Parks, and L. T. Steyaert, Environmental Modeling with GIS: Oxford University Press, 1993.
[63]  Reimann, C., and P. de Caritat, Chemical Elements in the Environment: Factsheets for the Geochemist and Environmental Scientist: Springer Berlin Heidelberg, 2012.
[64]  Scokart, P. O., K. Meeus-Verdinne, and R. De Borger, “Mobility of heavy metals in polluted soils near zinc smelters,” Water, Air, and Soil Pollution, 20 (4). 451-463, 1983.