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Chemical Partitioning of Iron, Cadmium, Nickel and Chromium in Contaminated Soils of South-Eastern Nigeria

Author Affiliations

  • 1Department of Chemistry, Delta State University, Abraka, NIGERIA

Res.J.chem.sci., Volume 2, Issue (5), Pages 1-9, May,18 (2012)


Selected heavy metals Fe, Cd, Ni, and Cr were studied in contaminated soil samples collected from South − Eastern Nigeria, for their geochemical differentiation into different chemical fractions, using Ma and Rao six steps sequential chemical extraction procedure in order to assess the potential mobility and bioavailability of the heavy metals in the soil profiles. It is evident from the study that the residual fraction was the most important phase for the four heavy metals under study with the following average percentage values 74.43 for Fe, 37.69 for Cd, 70.11for Ni and 62.47 for Cr. The carbonate fraction contained an appreciable portion of Fe, Cd and Ni with the average percentage values of 16.29, 14.86 and 10.47 respectively, while organic fraction was of next importance for Cr with an average percentage value of 27.14. Fe − Mn oxide fraction also contained 15.86% of Cd. Relatively low amount of the metals were associated with water soluble and exchangeable fractions. The mobility factors for the metals in all the sites ranged from 8.55 to 40.04 for Fe, 8.66 to 56.58 for Cd, 12.74 to 30.19 for Ni and 0.82 to 7.22 for Cr. The generally low values of mobility factors coupled with significantly high level of association of the metals with the residual fraction, indicate that the metals do not pose any environmental risk or hazard.


  1. Sadiq M. Metal Concentration in Sediments from A Desalination Plant Effluent Outfall Area, Sci. Total Environ., 287(1), 119−126 (2002)
  2. Ataikiru H., Uwumarongie E.G. and Okeimien F.E., Concentration and mobility of heavy metals in urban soils in Warri, Nigeria, Conf. Proc. Chem. Soc. Nig. 698 − 704 ( 2008 )
  3. Ogundiran O.O and Afolabi T.A., Assessment of physicochemical parameters and heavy metal toxicity of Leachates from municipal solid waste open dumpsite, Int. J. Environ., 5(2), 243−250 (2008)
  4. Odefemi O.S., Olaofe O. and Asaolu S.S., Seasonal variation in heavy metal distribution in sediment of major dams in Ekiti State, Pakistan J. of Nutr., 6(6), 705−707 (2007)
  5. Ahumada I., Mendoza J. and Ascar L., Sequential extraction in soils irrigated with waste water, Commun Soil Sci. Plant Anal, 30, 1057 − 1519 (1999)
  6. Narwal R.P., Singh B.R. Selbu B., Association of cadmium zinc, copper and nickel with components in natural heavy metal rich soils studied by parallel and sequential extraction, Comm. In Soil Sci. and Plant Anal. 30, 1209−1230 (1999)
  7. Maceau A., Boisset M.C., Sarret G., Hazemann J.L., Mench M., Cambier P. and Prost R., Direct Determination Of Pd Speciation In Contaminated Soils by EXAFA Spectroscopy, Environ. Sci. Technol., 30, 1540−1552 (1996)
  8. Iwegbue C.M.A., Nwajei G.E., Eguavoen O. and Ogala J.E., Chemical Fractionation of Some Heavy Metals In Soil Profiles In Vicinity of Scrap Dumps In Warri, Nigeria, Chem. Spec. Bioavail., 21(2), 99−110 (2009)
  9. Chao T.T., Selective dissolution of manganese oxides from soils and sediments with acidified hydroxylamine hydrochloride, Proc. Soil Sci. Soc. Amer, 36, 764 − 768 (1972)
  10. Tessier A., Campbell, P.G.C. and Bison M., Sequential Extraction Procedure for the Separation, Particulate Trace Metals, Anal. Chem., 51, 844-851. (1979)
  11. Sposito G., Lund J. and Chang A.C., Trace Metal Chemistry in arid-zone field soils amended with sewage sludge: I, fractionation of Ni, Cu, Zn, Cd and Pb in solid phases, Soil Sci Soc. Amer. J., 46, 260− 264 (1982)
  12. Welte B.N. and Montiel A., Study of different methods of speciation of heavy metals in the sediments; 11 Applications, Environ Technol Lett., 4, 223−238 (1983)
  13. Clevenger, T.E., Sequential extraction to evaluate the heavy metals in mining wastes, Water, Air Soil Pollut., 50, 241 − 255 (1990)
  14. Ure A., Quavaliviller P., Muntall H. and Griepink B., Speciation of heavy metals in soils and sediments, An account of the improvement and harmonization of auspices of the BCR of the CEC, Int. Anal. Chem, 51, 135 − 151 (1983)
  15. Ma L.Q. and Rao N., Chemical Fractionation of Cadmium, Copper, Nickel and Zinc in Contaminated Soils. J. Environ. Qual., 26 259−264 (1997)
  16. Wadge A. and Hutton M., The Leachability and Chemical speciation of selected trace elements in fly ash from coal combustion and refuse incineration, Environ Pollut., 48, 85 − 99 (1987)
  17. Eddy N.O., Odoemelem S.A. and Mbaba A., Elemental Composition of Soil in Some Dumpsites, Elect. J. Environ., Agric. and Food Chem., 5(3), 1002−1019 (2006)
  18. Onweremadu E.U, Osuji G.E, Eshett E.T Okpara, C.C. and Ibeawuchi I.I., Characterization of owner managed farms of Abia and Imo states for sustainable crop production in South Eastern Nigeria, J. Amer. Sci., 3(1), 28-37 (2007)
  19. Ano A.O., Odoekelem A.S and Ekwueme P.O., Lead and Cadmium Levels in Soils and Cassava (Manihot Esculenta Gnantz) Along Enugu Pot Harcourt Expressively In Nigeria Electronic, J. of Environ. Agric. and Food Chem., 6(5), 2024 − 2031 (2007)
  20. Okoye C.O.B. and Ibeto C.N., Determination of Bioavailability Metals in Soils of Three Local Government Areas in Enugu State Nigeria, Conf. Proc. Chem. Soc. Nig., 767−771 (2008)
  21. Gupta S.K. and Chen K.Y., Partitioning of Trace Metals Into Selected Chemical Fractions of Near Shore Sediments, Environ. Lett. 10, 129-158 (1975)
  22. Ramos L., Hermandez L.M., Gonazales M.J., Sequential Fractionation of Copper, Lead, Cadmium and Zinc in Soils from Danana National Park, J. of Environ. Qual., 25, 50-57 (1994)
  23. Horsfall M. (Jnr.) and Spiff A., Speciation and Bioavailability of Heavy Metals in Sediment of Diobu River, Port Harcourt, Nigeria, Eur. J. Sci. Res. 6(3), 20−36 (2005)
  24. Abeh T., Gungshik J. and Adamu M.M., Speciation Studies of Trace Elements Levels in Sediments from Zaramagada Stream in Jos, Plateau State, Nigeria, J. Chem. Soc. Nig. 32(2), 218-225 (2007)
  25. Segarra M.J.B., Prego, Wilson M.J., Bacon J. and Santos-Echeandia J.S., Metal Speciation in Surface sediments of the Vigo Ria (N.W. Iberian Peninsula Sci. Mar. 72(1), 119-126 (2008)
  26. Osakwe S.A., Chemical speciation and mobility of some heavy metals in soils around automobile waste dumpsites in Northern part of Niger Delta, South Central Nigeria, J. of Appl. Sci. and Environ. Manage, 14(4), 123-130 (2010)
  27. Chaudhary G., Saika M. and Owen C., Speciation of Some Heavy Metal in Coalfly Ash., Chem. Spec. and Bioavail., 19(3), 95−102 (2008)
  28. Hickey M.G. and Kittrick, J.A. Chemical Partitioning Of Cadmium, Copper, Nickel And Zinc In Soils An Dseiments Containing High Levels Of Heavy Metals. J. Environ. Qual. 13: 372-376 (1984)
  29. Urunmatsoma S.O. and Ikhouria E.U., Effect of Leachates (Heavy Metal Content) from Solid Waste at “Effurum Roundabout Dumpsite” Warri, Nigeria, Chem. Technol. J., 1, 195-202 (2005)
  30. Graham D.R. and Stangoulis J.C., Trace Element Uptake and Distribution In Plants, Crit. Rev. Plant Sci., 14, 49-82 (2003)
  31. Iwegbue C.M.A., Metal Fractionation in Soil Profiles at Automobile Mechanic Waste Dumps, Waste Manag. Res. 25 1-9 (2007)
  32. Kotoky P., Bora B.J., Baruah N.K., Baruah P. and Borah G.C., Chemical Fractionation of Heavy Metals in Soils Around Oil Installation, Assam, Chem. Spec. and Bioavail., 15(4), 115-125 (2003)
  33. Zuayah S., Julian B., Noorhafiza H.R., Fauziah C.L. and Rosenanic A.B., Concentration and Speciation of Heavy Metal in Some Cultivated and Uncultivated Utisols and Inceptisols in Peninsular Malaysia, In Proc. Super Soil 2004 3rd Australian New Zwaland Soil Conference, 5-9 December 2004, University of Sydney, Australia, (2004)
  34. Iwegbue C.M.A., Assessment of Heavy Metal Speciation in Soils Impacted with Crude Oil in Niger delta, Nigeria, Chem. Spec. Bioavail., 23(1), 7-15 (2011)
  35. Jenne E.A., Controls of Mn, Fe, Co, Ni, Cu and Zn Concentration in Soils and Water, The Significant Role of Hydrous Mn and Fe Oxides, In: Trace in Organizing Water Gould, R.F. (ed) Advances in Chemistry Series, N. 73 Amer. Chem. Soc. Washington D.C. 337-387, (1968)
  36. Xian X., Effects of Chemical Forms of Cadmium, Zinc and Lead in Polluted Soils on their Uptake by Cabbage Plants, Plant Soil Sci., 113, 257−264, (1989)
  37. Chashschin A.C., Page A.I, Werneke J.E. and Gragurevic E., Sequential extraction of soil heavy metals following a sludge application, J. Environ. Qual 13(1), 33−38 (1984)
  38. Miller W.P. and Blendsoe W.W., Distribution of cadmium, zinc, copper and lead in soils of industrial North-western India, J. Environ. Qual. 12, 373-379, (1983)
  39. Kuo S., Heilman P.E. and Baker A.S., Distribution and Forms of Copper, Zinc, Cadmium, Iron and Manganese in soil near a copper smelter, Soil Sci., 135, 101-109 (1983)
  40. Li, X. Wai, O.W.H., Li Y.S., Coles B.J., Ramsey M.H. and Thornton I., Heavy metal distribution in sediment profiles of the Pearl River Estuary, South China, Appl. Geochem., 15, 567 − 580 (2001)
  41. Ogundiran M.B. and Osibanjo O., Mobility and speciation of heavy metal in soils impacted by hazardous waste, Chem. Spec. and Bioavail., 21(2), 59-69 (2009)
  42. Moral R., Gilkes R.J. and Jordan M.M., Chemical fractionation of Cd, Cu, Ni and Zn in contaminated soils. J. Environ. Qual., 26, 259-264 (2005)
  43. McKenzie R.M., The Sorption of some heavy metals by lower oxides of manganese, Geoderma, 8, 29−33 (1972)
  44. McGrath S.P. and Smith S., Chromium and Nickel, In: Alloway B.J. (ed), Heavy Metals In Soil, Blackie, Glasgow, UK, 125−150 (1990)
  45. McLean J.E, and Blendsoe B.E., Groundwater Issue: Behaviour of Metals in Soils, U.S. Environmental Protection Agency, EPA/540s-92/018 (1992)
  46. Ryan P.C., Wall A.J., Hiller S. Clark L., Insight into Chemical Extraction Procedure From Quantitative XRD, A Study of Trace Metal Partitioning in Dediments Related To Frog Malformities. Chemistry 184, 337-357 (2002)
  47. Elsokkary I.H. and Mueller G., Assessment of Speciation of Cr. Ni, Pb and Cd in the Sediments of River Nile, Egypt. Sci. Total Environ. 97/98 455-463 (1990)
  48. 48 Sheppard M.I. and Thibault, D. H., Desorption and extraction of selected heavy metals from soils Soil Sci., Soc. Amer. J. 56, 415 − 423, (1992)
  49. Bay S.M., Zeng, E.Y., Lorenson, T.D., Tran, K. and Alexander, C. Temporal And Spatial Distribution of Contaminants in Sediments of Santa Monica Bay, California. Mar. Environ. Res. 56(1−2): 255-276. (2003)
  50. Karczewska A., Metal species distribution on top and subsoil on an area affected by smelter emission, Appl. Geochem., 11, 35 − 42, (1996)
  51. Kabala C. and Singh B.R., Fractionation and mobility of copper, lead and zinc in soil profiles in the vicinity of a copper smelter, J. Environ Qual., 30, 485 − 495 (2001)
  52. Salbu B., Kreling I. and Dughlon D.H., Characterization of radioactive particles in the environment, 123, 843 − 843 (1998)
  53. Osakwe S.A. and Egharevba F., Sequential fractionation of cadmium, copper, lead and chromium, in soils around municipal solid waste dumps in Agbor, Nigeria. J. Chem. Soc. Nig. 33(2), 139−147 (2008)