Concentrations and human health risk assessment of selected heavy metals in soils and food crops around Osukuru phosphate mine, Tororo District, Uganda

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dc.contributor.authorTagumira, Abudallah
dc.contributor.authorBiira, Saphina
dc.contributor.authorAmabayo, Emirant Bertillas
dc.date.accessioned2023-04-01T16:01:49Z
dc.date.available2023-04-01T16:01:49Z
dc.date.issued2022
dc.description.abstractThis study investigated the concentrations of heavy metals, particularly chromium (Cr), cadmium (Cd); lead (Pb), copper (Cu), and iron (Fe) in the soil and crops. The accumulation of heavy metals in the crop system, the probable daily intake of heavy metals, and the assessment of potential health threats associated with the uptake of metals by the residents around the Osukuru phosphate mine in Tororo, Uganda. The concentrations were assessed with the assistance of an Atomic Absorption Spectrometer (AAS). The crops studied were amaranthus (Amaranthus hybridus) leaves, pumpkin (Cucurbita pepo) leaves, maize (Zea mays) grains, and cowpeas (Vigna unguiculata) leaves. A total of 200 samples were collected from five villages of Osukuru Sub County. The findings of this study showed that elemental concentrations of heavy metals in the soil were within the standard recognized limit for agriculture as documented by World Health Organization (WHO) and European Union (EU). While more noticeable levels of these elements were detected in crop samples, especially amaranthus. Chromium composition was lower than the detection level in all samples. The transfer factor results showed elemental intake by the crops in the sequence; Fe > Cu > Cd > Pb. The probable daily intakes of the elements were below the daily threshold values endorsed by WHO/FAO. The health threat index showed high values for Pb and Cd from maize but low values of Cu and Fe in all samples and therefore these crops may not be very safe for human intake.en_US
dc.identifier.citationTagumira, A., Biira, S., & Amabayo, E. B. (2022). Concentrations and human health risk assessment of selected heavy metals in soils and food crops around Osukuru phosphate mine, Tororo District, Uganda. Toxicology Reports, 9, 2042-2049. https://doi.org/10.1016/j.toxrep.2022.11.007en_US
dc.identifier.urihttps://doi.org/10.1016/j.toxrep.2022.11.007
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/8367
dc.language.isoenen_US
dc.publisherToxicology Reportsen_US
dc.subjectConcentration of heavy metalsen_US
dc.subjectTransfer factoren_US
dc.subjectPredicted daily intakeen_US
dc.subjectHealth threat indexen_US
dc.subjectDanger indexen_US
dc.subjectPhosphate miningen_US
dc.titleConcentrations and human health risk assessment of selected heavy metals in soils and food crops around Osukuru phosphate mine, Tororo District, Ugandaen_US
dc.typeArticleen_US
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