Investigating vegetable contamination in indigent communities by heavy metals: a case of food safety in Bushenyi, Uganda
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Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Taylor & Francis
Abstract
Food contamination by heavy metals is a health burden in sub-Saharan Africa. Here, we
illustrate this burden by quantifying levels of Cd, Cr, Ni, Co, Pb, Fe, Cu and Zn in vegetables
from Bushenyi District (Uganda). Results show that cabbage, scarlet eggplant, tomato and
amaranth sold in Bushenyi, Ishaka, Kashenyi, Kizinda and Nyakabirizi open markets contain
high levels of Zn and Fe. The uptake of metals overall appeared to be speciesspecific.
Amaranth, for example, had more metals than scarlet eggplant, which in turn had
more metals than tomato or cabbage. Within a species, cabbage from Ishaka and Kashenyi
presented a combinatorial set of characteristics quite distinct from cabbage from other areas.
Such differences arose perhaps from differential capacities to uptake/retain metals from soil or
atmospheric particulates. More studies are needed to pinpoint sources of vegetable contamination
in Bushenyi. Perhaps then remedial measures can be proposed.
Description
Keywords
Heavy metals in vegetables; food safety; ecotoxicology; food policy
Citation
Eric Oloya Otim, Keneth Iceland Kasozi, Gerald Zirintunda, Kevin Matama & Ochan Otim (2021) Investigating vegetable contamination in indigent communities by heavy metals: a case of food safety in Bushenyi, Uganda, Environmental Pollutants and Bioavailability, 33:1, 292-300, DOI: 10.1080/26395940.2021.1984851