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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/12575

Title: Accumulation and bioaccessibility of toxic metals in root tubers and soils from gold mining and farming communities in the Ashanti region of Ghana
Authors: Darko, Godfred
Adjei, Samuel
Nkansah, Marian Asantewah
Borquaye, Lawrence Sheringham
Boakye, Kwadwo Owusu
et. al
Keywords: Metal bioaccumulation
in vitro bioaccessibility
toxic metal concentrations
artisanal small-scale gold mining and non-mining communities
Issue Date: 2-Jun-2020
Publisher: Taylor & Francis Group
Citation: Godfred Darko , Samuel Adjei , Marian Asantewah Nkansah , Lawrence Sheringham Borquaye , Kwadwo Owusu Boakye & Matt Dodd (2020): Accumulation and bioaccessibility of toxic metals in root tubers and soils from gold mining and farming communities in the Ashanti region of Ghana, International Journal of Environmental Health Research, DOI: 10.1080/09603123.2020.1772203
Abstract: The presence of metal contaminants in agricultural soils and subsequent uptake by food crops can pose serious human health risk. In this study, we assessed the levels of toxic metals – arsenic, chromium, copper, iron, manganese, nickel, and zinc – in soils and some edible root tuber crops from two gold mining and two non-mining communities in Ghana to evaluate the potential human health risks associated with exposure to these metals. Concentrations of the metals in 154 soil and edible root tuber samples were analyzed using field portable x-ray fluorescence spectrometer prior to confirmation by inductively coupled plasma mass spectrometry. Bioaccessibility of the metals was determined using an in vitro physiologically based extraction technique. Concentrations of the metals were generally higher in the gold mining communities than in the non-mining communities. The contamination indices indicated low to moderate contamination of the soil and food crops. Bioaccessibility for the metals varied from 1.7% (Fe) to 62.3 (Mn). Overall, the risks posed by the metals upon consumption of the tubers were low.
Description: An article published by Taylor & Francis Group and also available at doi.org/10.1080/09603123.2020.1772203
URI: http://hdl.handle.net/123456789/12575
Appears in Collections:College of Science

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