Levels of heavy metals in urine samples of school children from selected industrial and non-industrial areas in Dar es Salaam, Tanzania

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dc.contributor.authorMahugija, John A.M.
dc.contributor.authorKasenya, Zainab S.
dc.contributor.authorKilulya, Kessy F.
dc.date.accessioned2018-12-19T13:26:56Z
dc.date.available2018-12-19T13:26:56Z
dc.date.issued2018-12
dc.description.abstractObjectives: The levels of lead, zinc, iron, copper and cadmium metals in the urine samples of selected school children in industrial and non-industrial areas in Dar es Salaam were investigated. Methods: Urine samples were collected from 120 children in industrial areas and 120 children in non-industrial areas then digested in concentrated acids and analysed using atomic absorption spectrophotometry (AAS). Results: The concentrations of the heavy metals in the urine samples ranged from below detection limit/non-detectable (ND) to 1.92 mg/L for lead, ND to 2.55 mg/L for zinc, ND to 8.98 mg/L for iron and ND to 0.05 mg/L for copper. Cadmium was not detected. Significant differences were found between the concentrations of heavy metals in urine of pupils from the industrial areas and those from non-industrial areas. The mean concentrations of lead and copper in samples from industrial areas were significantly higher than those found in non-industrial areas (p < 0.002), while the mean concentrations of zinc and iron found in samples from non-industrial areas were significantly higher than those found in industrial areas (p < 0.0001). Conclusion: The contamination levels were generally high in samples from both areas indicating exposure from various sources. The findings indicate public health risks.en_US
dc.identifier.citationMahugija, J.A., Kasenya, Z.S. and Kilulya, K.F., 2018. Levels of heavy metals in urine samples of school children from selected industrial and non-industrial areas in Dar es Salaam, Tanzania. African Health Sciences 18(4), 1226-1235.en_US
dc.identifier.doihttps://dx.doi.org/10.4314/ahs.v18i4.44
dc.identifier.issn1680-6905
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5017
dc.language.isoenen_US
dc.publisherMakerere University Medical Schoolen_US
dc.subjectHeavy metals, children urine, industrial areas, non-industrial areas, Tanzaniaen_US
dc.titleLevels of heavy metals in urine samples of school children from selected industrial and non-industrial areas in Dar es Salaam, Tanzaniaen_US
dc.typeJournal Article, Peer Revieweden_US
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