PreprintArticleVersion 1Preserved in Portico This version is not peer-reviewed
Accumulation of Trace Metals in Fruits from Mango And Syzigium guineense Growing in Residential Households from A Contaminated District of Lubumbashi (Dr Congo): Is Fruit Consumption at Risk?
Langunu, S.; Imabo, P.M.I.; Bibi Fwanda, B.; Kilela Mwanasomwe, J.; Colinet, G.; Ngoy Shutcha, M. Accumulation of Trace Metals in Fruits from Mango and Syzygium guineense Growing in Residential Households from a Contaminated District of Lubumbashi (DR Congo): Is Fruit Consumption at Risk? Toxics2023, 11, 620.
Langunu, S.; Imabo, P.M.I.; Bibi Fwanda, B.; Kilela Mwanasomwe, J.; Colinet, G.; Ngoy Shutcha, M. Accumulation of Trace Metals in Fruits from Mango and Syzygium guineense Growing in Residential Households from a Contaminated District of Lubumbashi (DR Congo): Is Fruit Consumption at Risk? Toxics 2023, 11, 620.
Langunu, S.; Imabo, P.M.I.; Bibi Fwanda, B.; Kilela Mwanasomwe, J.; Colinet, G.; Ngoy Shutcha, M. Accumulation of Trace Metals in Fruits from Mango and Syzygium guineense Growing in Residential Households from a Contaminated District of Lubumbashi (DR Congo): Is Fruit Consumption at Risk? Toxics2023, 11, 620.
Langunu, S.; Imabo, P.M.I.; Bibi Fwanda, B.; Kilela Mwanasomwe, J.; Colinet, G.; Ngoy Shutcha, M. Accumulation of Trace Metals in Fruits from Mango and Syzygium guineense Growing in Residential Households from a Contaminated District of Lubumbashi (DR Congo): Is Fruit Consumption at Risk? Toxics 2023, 11, 620.
Abstract
Copper smelting has been the source of soil contamination in trace metals in Penga Penga (Lubumbashi). Residents are exposed to trace metal ingestion and planting trees is challenging in such soil conditions. Nevertheless, planting trees in former household dumps or using various types of amendments allowed the provisioning of fruits in few residences. In the perspective of scaling up the process, a survey has been conducted with the aim of assessing the effectiveness of the planting processes on the trace metal content in fruits and leaves of Mangifera indica L. and Syzygium guineense (Willd) DC. Samples were collected in residential households from Penga Penga and Kalebuka (a non-polluted suburb). The bioconcentration factor (BCF) and the safe weekly consumption (SWC) were calculated for each species. Results showed higher values of total and soluble concentrations of Cu, Pb, and Zn in the rhizosphere of the two species at Penga Penga. Metal concentrations were higher in fruits and leaves from Penga Penga with 47% of samples above FAO and WHO thresholds (vs 18.5% in Kalebuka). The BCF values were below 1 demonstrating the effectiveness of the process to reduce metal translocation to leaves and fruits. Recommendations from the SWC limited by Pb for consumption to 9 kg for mango flesh and by Cd 6.6 kg for S. guineense fruits at Penga Penga (Vs 78 and 68 kg at Kalebuka). Finally, results from this study provide interesting lessons from the scaling up and the technical itinerary of planting tree un Penga Penga.
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
,
