Heavy Metals Concentration in Cassava Tubers and Leaves froma Galena Mining Area inIshiagu, IVO L.G.A ofEbonyi State Nigeria
Journal Title: IOSR Journal of Applied Chemistry (IOSR-JAC) - Year 2018, Vol 11, Issue 3
Abstract
Cassava leaf and tuber samples were collected from four different farmlands around galena mining site in Ishiagu, Ebonyi state, Nigeria. These samples were monitored for heavy metals using atomic absorption spectrometer. Metals studied were Pb, Mn, Ni, Fe, Cr, Cd, Zn, and Cu. The concentration range of these metals in cassava tubers were found to be 10-27mg/kg Cu, 86-93mg/kg Zn, 0.1-0.43mg/kg Cd, 0.012-0.036mg/kg Cr, 35-70mg/kg Ni, 98-130mg/kg Mn, 11.50-16mg/kg Fe, and 0.6-1.2mg/kg Pb. Cd, Ni and Pb concentrations were found to be above WHO standard of 0.20mg/kg, 67.90mg/kg and 0.30mg/kg respectively. Maximum concentrations of the metals in leaf samples were found to be 15mg/kg, 97mg/kg, 0.40mg/kg and 0.086mg/kg for Cu, Zn, Cd and Cr respectively. Cd, Cr and Pb concentrations in cassava leaf samples were found to be above WHO standard of 0.20mg/kg,0,05mg/kg and 0.30mg/kg respectively. The variation in parameters determined for the samples (cassava leaf and crop samples) were all found to be statistically significant (p<0.05). The results of the analysis showed that there were significant accumulations of these metals studied in cassava leaves and tubers.
Authors and Affiliations
Ajiwe V. I. E, Chukwujindu K. C,
Keywords
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- EP ID EP414021
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