Heavy metal bioaccumulation of selected tuber crops from Ishiagu, Ebonyi State, South East, Nigeria

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Research Paper 01/08/2014
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Heavy metal bioaccumulation of selected tuber crops from Ishiagu, Ebonyi State, South East, Nigeria

Uzoma Kelechi Osuocha, Ezinne Callista Chukwu, Ahamefula Sunday Ezekwe., Chinedu Imo, Solomon Ugochukwu Charles, Chibuike Ibe.,Joel Chinedum Ikpo
J. Bio. Env. Sci.5( 2), 136-140, August 2014.
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Heavy metal concentration of soil and selected root crops cassava, yam, cocoyam and potato from three mining areas of Ishiagu, Ebonyi State were Evaluated. Heavy metals were analysed using Atomic absorption spectrophotometer (AAS). Results showed that lead (Pb) concentration of soil samples raged from 1.12±0.01a – 2.05±0.01c, Cadmium 0.46±0.02a – 0.77±0.01b, Chromuim 0.97±0.03d – 1.23± 0.02b, Ni 0.83±0.02d – 1.56±0.04b, Mn 1.23±0.04d -1.42±0.03c and Zn 1.95±0.01c – 2.16±0.03d. These values were significantly higher than control (P<0.05).Results also indicates that these root crops accumulated all the heavy metals analysed more than the control samples. There is need therefore to have proper remediation in order to reduce heavy metal concentration of these crops.


Akubugwo EI, Osuocha KU, Nwaogu LA, Chinyere GC. 2013. Studies on bioaccumulation of heavy metals and selected minerals from mining effluent contaminated soil treated with fertilizers into Cucurbita pepo vegetable. Advances in Applied Science Research 4, 4:190-195.

APHA 1998. Standard methods for examination of water and waste water. American Public Health Association, American water works Association and water pollution control federation. 20th edition, Washington DC. USA.

Duruibe JO, Ogwuegbu MOC, Egwurugwu JN. 2007. Heavy metal pollution and human biotoxic effects. International Journal of Physical Sciences 2 5:112-118.

Fu J, Zhou Q, Liu J, Liu W, Wang T, Zhang Q, Jiang G. 2008. High levels of heavy metals in rice (Oryza sativa L.) from a typical E-waste recycling area in southeast China and its potential risk to human health. Chemosphere,71, 1269-1275

Goyal P, Sharma P, Srivastava S, Srivastava MM. 2008. Saraca indica leaf powder for decontamination of Pb: Removal, recovery, adsorbent characterization and equilibrium modeling. International Journal of Environmental Science Technology 5 1, 27-34.

Lee I, Kim K, Chang Y, Bac B, Kini HH, Baek K. 2002. Heavy metal contamination on soil microbial characteristics Journal of Bioscience and Bioengineering 102:157-161

Nolan K. 2003. Copper Toxicity Syndrom. Journal of Orthomology and Psychiatry 12 4:270-282.

Nouri J, Khorasani N, Lorestani B, Yousefi N, Hassani AH, Karami M. 2009. Accumulation of heavy metals in soil and uptake by plant species with phytoremediation potential. Environmental Earth Science., 59 2, 315-323.

Onyedika GO, Nwosu GU. 2008. Lead, Zinc and Cadmium in Root Crops from Mineralized Gelena-Sephalerite Mining Areas and Environment. Pakistan Journal of Nutrition 7 3: 418-420.

Osuocha KU, Akubugwo EI, Chinyere GC, Ezekwe AS, Duru MK, Nwaogu LA. 2013a. Effects of mining effluent contaminated soil treated with fertilizers on growth parameters, chlorophyll and proximate composition of Cucurbita pepo vegetable. Journal of Biodiversity and Environmental Sciences 3 9:1-8.

Osuocha KU, Okereke SC, Ezekwe AS, Chukwudourou C, Chukwu EC. 2013b. Impact of Quarry Effluent Discharge on Heavy Metals, Chlorophyll, Vitamin and Proximate composition of Selected Vegetables from Ishiagu, Ebonyi State Nigeria. IOSR Journal of Pharmacy. 3 9 7-12.

Oti Wilberforce JO,    Nwabue F,    Afiukwa JN. 2012. Analysis of Heavy Metals in Soils of Enyigba and Abakaliki Using Proton Induced X-Ray Emission (Pixe) Spectroscopy. Environment and Pollution.1, 2: 183-193.

Vousta DA, Grimanins A, Sammara C. 1996. Trace element in vegetables grown in an indusrial areas in relation to soil and air particulate matter. Environmental Pollution 94, 325-335.

World  Health  Organization.  1992.  Cadmium. Environmental Health Criteria, Vol. 134, Geneva.

World Health Organization. 1995. Lead. Environmental Health Criteria, Vol. 165, Geneva.