| Autor: |
Mngadi S; Department of Applied Chemistry, University of Johannesburg, South Africa, South Africa.; Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI) in Nanotechnology for Water, University of Johannesburg, Doornfontein, South Africa.; Scientific Services, Laboratories, Chemical Sciences, uMngeni-uThukela Water, Pietermaritzburg, South Africa., Nomngongo PN; Department of Applied Chemistry, University of Johannesburg, South Africa, South Africa.; Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI) in Nanotechnology for Water, University of Johannesburg, Doornfontein, South Africa.; Department of Science and Innovation/Mintek Nanotechnology Innovation Centre, University of Johannesburg, Doornfontein, South Africa., Moja S; Water and Environmental Unit & Applied Geoscience Division, Council for Geoscience, Pretoria, South Africa. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes [J Environ Sci Health B] 2024; Vol. 59 (6), pp. 300-314. Date of Electronic Publication: 2024 Apr 15. |
| DOI: |
10.1080/03601234.2024.2339779 |
| Abstrakt: |
The presence of toxic metals in residential areas near abandoned gold mine tailings is a major environmental issue. This study mainly aimed to investigate the elemental distribution of both toxic and essential elements in soils and leafy vegetables ( Brassica oleracea ) collected from eight different sites around the Davidsonville residential area, located closer to the abandoned Princess gold mine dump, Johannesburg, South Africa. The nutritional value of vegetables in the human diet was determined to assess their value to their health. The vegetables contained metals in the following descending order: Ca > Mg > Ca > Sb > Pb > Fe > Mo > Cr > Se > As > V > Ni > Co > Cd. The bioaccumulation factor (BAF) revealed that vegetables tend to accumulate most metals even (toxic) during the transfer and translocation process. Based on the recommended daily allowance (%RDA) the vegetables showed to contribute 152%, 84% and 75% toward RDA for Se, V and Ca, respectively for most adults and these play a role in human metabolic activities. The vegetables were found to be a good source of essential elements (Ca, Mg, Ni, Na, Fe) but with some traces of toxic metals such as Pb, As and Sb. Based on the health risk assessment, the vegetable posed an adverse health hazard for human consumption due to metals with high HRI >1. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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