Electrochemical determination of the levels of cadmium, copper and lead in polluted soil and plant samples from mining areas in Zamfara State, Nigeria

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dc.contributor.authorOgunlesi, M.
dc.contributor.authorOkiei, W.O.
dc.contributor.authorAdio‐Adepoju, A.
dc.contributor.authorOluboyo, M.
dc.date.accessioned2019-08-26T12:48:17Z
dc.date.available2019-08-26T12:48:17Z
dc.date.issued2017-12-24
dc.description.abstractThe concentrations of lead, copper and cadmium in soil and plant samples collected from Abare and Dareta villages in Anka local government area of Zamfara State, Nigeria have been electrochemically determined. The study was carried out because of the high mortality of women and children under five, reported for these areas in June 2010. The cause was ascribed to the lead poisoning which has been related to the mining and processing of gold-containing ores. Linear sweep anodic stripping voltammetry technique was used with the glassy carbon working, Ag/AgCl reference and platinum auxiliary electrodes. Voltammetric peaks for lead, copper and cadmium that were observed at-495 mV,-19.4 mV and-675 mV, respectively, have formed a basis for construction of the corresponding calibration plots. The concentrations (in mg/kg) of lead, copper and cadmium in the soil samples were found in the ranges of 18.99− 26087.70, 2.96− 584.60 and 0.00− 1354.25, respectively. The concentration values for lead were far above already established USEPA (2002) and WHO (1996) maximum permissible limits for residential areas. The concentrations of lead, copper and cadmium in the food samples ranged between 5.70− 79.91, 11.17− 41.21 and 0.00− 5.74 mg/kg. Several of these values are found well above the FAO/WHO limits of 0.1, 2 and 0.1 mg/kg, respectively. The results indicate that in addition to the lead poisoning, copper and cadmium poisoning may also be responsible for sudden and high mortality in this population.en_US
dc.identifier.citationOgunlesi, M., Okiei, W., Adio-Adepoju, A., & Oluboyo, M. (2017). Electrochemical determination of the levels of cadmium, copper and lead in polluted soil and plant samples from mining areas in Zamfara State, Nigeria. Journal of Electrochemical Science and Engineering, 7(4), 167-179.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4729
dc.language.isoenen_US
dc.publisherJournal of Electrochemical Science and Engineeringen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistry::Analytical chemistry::Electrochemistryen_US
dc.subjectHeavy metalsen_US
dc.subjectMining activityen_US
dc.subjectSoilen_US
dc.subjectPlantsen_US
dc.subjectAnodic stripping voltammetryen_US
dc.titleElectrochemical determination of the levels of cadmium, copper and lead in polluted soil and plant samples from mining areas in Zamfara State, Nigeriaen_US
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