International Journal of Advanced Research and Publications (2456-9992)

Assessment Of Heavy Metal Concentrations In Water Samples From The Hydraulically Connected Water Systems In Northern Delta Depobelt, Nigeria.

Volume 1 - Issue 4, October 2017 Edition
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Author(s)
Ocheli Azuka, Aigbadon Godwin Okumagbe, OgbeOvie Benjamin, Ocheli Paul Chukwujindu
Keywords
Communities;Concentration; Dispersed; Hazards;Water.
Abstract
The concentration of heavy metals in the water samples collected from the hydraulically connected water systems: rivers, hand dug wells and boreholes in Northern Delta Depobelt, Niger Delta, Nigeria were investigated using Atomic Absorption Spectrometric method. The samples were studied and analyzed for seven (7) heavy metals namely; Zinc (Zn), Cadmium (Cd), Copper (Cu), Iron (Fe), Lead (Pb), Arsenic (As), and Chromium (Cr). The range concentrations of these heavy metals obtained in the water samples in mg/l are as follows: Zn(0.02- 1.3), Cd (0.001-0.006), Cu (0.03-0.96), Fe (008- 25.74), Pb (0.10-0.80), As(0.001-0.006) and Cr (0.03-0.20).The results obtained were compared with the recommended standards of the World Health Organization (W.H.O.) and Federal Environmental Protection Agency (FEPA), and it was found that Zn, Cd, Cu, As and Cr concentrations in all the water samples were below the recommended level set by WHO and FEPA for safe drinking water except Fe and Pb. These imply contaminated status for the water collected from these sampling communities on the bases of Fe and Pb concentrations. The habitual use of the water for drinking, domestic and industrial purposes by inhabitants has possible health hazards. The shale lithology underlying the area and the increase in the production of oil as well as the oil facilities in the area fasten the rate at which toxic heavy metals are dispersed to the water table by leachate. I recommend regular monitoring assessment in these host communities to ensure adherence of oil producing companies to existing environmental and water laws.
References
[1] J.O. Nriagu, J.M. Pacyna,“Quantitative assessment of worldwide contamination of air, water and soils by trace metals,” Nature, 333, 134–139,1988.
[2] O. Igwe, E.J. Adepehin, C. Iwuanyanwu,C.O. Una,“Risk associated with the mining of Pb – Zn minerals in some parts of the southern Benue Tough, Nigeria,” Journal of Environment and Monitoring Assessment, vol. 186, no. 3, pp. 13- 21,2014.

[3] A.A. Levinson,“Introduction to Exploration Geochemistry.” Applied Publishing Ltd, Calgary, 612p, 1974.

[4] K.T. Oyatayo, G.A. Songu, G.A. Amos, C. Ndabula,“Assessment of Heavy metal Concentration in Hand dug well water from selected Land uses in Wukari Town, Wukari, Taraba State, Nigeria.” Journal of Geoscience and Environment Protection, vol. 3, pp. 1-10, 2015.

[5] WHO/UNICEF/ “International Council for the control of heavy metal disorders”, a guide for Programme Managers. Geneva,. World Health Organization; WHO Document. WHO/NHD/01.1, 2001.

[6] FEPA, National Guidelines and Standards for Environment. Federal Environmental Protection Agency, Ministry of Environment, Nigeria, 1991.

[7] O. K. Musa, M. M. Shaibu, E. A. Kudamnya, “Heavy metal Concentration in Groundwater around Obajana and its Environs, Kogi State, North Central, Nigeria, vol. 3, no 8, pp. 170 – 177, 2013.

[8] A. O. Eruola , N. A. Adedokun, “Analytical assessment of Cadmium, Lead and Iron in hand dug wells of Ilaro, South-western Nigeria,” Global Journal of Science Fronter Research Chemistry, vol. 12, no 6, pp. 38 – 43, 2012.

[9] N.P. Iloeje, “A New Geography of Nigeria,” Longman Publishers, Nigeria, 200p, 1981.

[10] J.Hospers, “Gravity Field and structure of the Niger Delta.” Nigerian Geological Society, American Bulletin, vol. 76, pp. 407-422, 1965.

[11] J.O.Oseji , M.O. Ofomola,“Predicting the aquifer Characteristics in the Heaquaters of Ndokwa land,” Journal of Earth Sciences, vol. 4, no. 1, pp. 35-37, 2010.

[12] J.R.L. Allen,“Late Quaternary Niger Delta and adjacent areas: Sedimentary Environments and Lithofacies.” American Bulletin of Petroleum Geology, vol. 49, no. 5, pp. 547-600, 1965.

[13] R.A.Reyment,“Aspect of the Geology of Nigeria,” Ibadan University Press, 145p, 1965.

[14] K.C. Short, A.J. Stauble,“Outline of Geology of Niger Delta,” AAPG Bulletin, vol. 51, pp. 761-779, 1967.

[15] A.A. Avbovbo, 1970: “Tertiary Lithostratigraphy of the Niger Delta.” Bulletin, American Association of Petroleum Geologist, vol. 63, pp. 295-306, 1970.

[16] K.C.A.Burke, T.F.J.Dessauvagie, A .J. Whiteman,“Geological history of the Benue Valley and adjacent areas,” In: T.F.J.Dessauvagie, A.J.Whiteman, (eds), 1972. African Geology, University of Ibadan, pp. 187-205, 1972.

[17] J.M. Gerhat, J.D. Blomquist,“Selected trace element sand organic contaminant in streambed sediments of the Potomac River Basin,” U.S. Geological Survey. Water Resources Investigation Report, 95–4267, 1–12, 1992.

[18] H.N.Ezeh,O.L. Anike, “The preliminary assessment of the pollution status of streams and artificial lakes created by mining in the mining district of Enyigba, Southeastern Nigeria, and their consequences,” Global Journal of Environmental Sciences, vol. 8, no. 1, 41–48, 2009.

[19] H.N. Ezeh, O. L.Anike, B. C. E. Egboka, ”The distribution of some heavy metals in soils in areas around the derelict Enyigba mines and its environmental implication.” Current World Environment, vol. 2, no 2, pp. 99–106, 2007.

[20] J.O. Duruibe, M.O.C. Ogwuegbu, J.N. Egwurugwu, “Heavy metal pollution and human biotoxic effects,” International Journal of Physical Science, vol. 2, no 5, pp. 112–118, 2007.