[ Concentrations en métaux toxiques des poissons comestibles du fleuve Congo au site Kinsuka à Kinshasa (RD Congo) et évaluation des potentiels risques sanitaires ]
Volume 60, Issue 2, May 2022, Pages 66–71
Nsimanda Ipey Camille1 and Ingonda Bololo Soleil2
1 Department of Environmental Sciences, Faculty of Sciences, University of Kinshasa, BP 190, Kinshasa XI, RD Congo
2 Département des sciences de l’environnement, Faculté des Sciences, Université de Mbandaka, B.P. 10, Mbandaka, RD Congo
Original language: French
Copyright © 2022 ISSR Journals. 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.
A total of 51 samples of Distichodus fasciolatus (Mboto in Lingala), Mormyrops anguilloides (Monzanda/Nzanda) and Schilbe mystus (Ndangwa/lilangwa) fish, gutted and separated from the gills, were captured from the Kinsuka fishing site in Pool Malebo on the Congo River in Kinshasa to determine lead and cadmium concentrations, and to assess the health risk associated with their continued consumption. After spectrophotometric analysis with HACH - DR 2400 in accordance with the laboratory's operating procedure, it appears that all the species of fish analyzed are contaminated with lead and cadmium at concentrations far above the European Union edibility standard. The continued consumption of 14.24 grams per day of fish from the Kinsuka fishing site poses the obvious risk of developing chronic disease throughout life, especially in children. The hazard quotients and the associated hazard quotients, whether for children or for adults, are far greater than 1. This risk could become even worse when the purchasing power of consumers is improved in the future. It is up to the government to ban the consumption of these fish and to take binding measures to reduce the contamination of aquatic ecosystems, to introduce national standards for the discharge of industrial wastewater and for foodstuffs intended for human consumption.
Author Keywords: Concentration, toxic metals, edible, evaluation, health risks.
Volume 60, Issue 2, May 2022, Pages 66–71
Nsimanda Ipey Camille1 and Ingonda Bololo Soleil2
1 Department of Environmental Sciences, Faculty of Sciences, University of Kinshasa, BP 190, Kinshasa XI, RD Congo
2 Département des sciences de l’environnement, Faculté des Sciences, Université de Mbandaka, B.P. 10, Mbandaka, RD Congo
Original language: French
Copyright © 2022 ISSR Journals. 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.
Abstract
A total of 51 samples of Distichodus fasciolatus (Mboto in Lingala), Mormyrops anguilloides (Monzanda/Nzanda) and Schilbe mystus (Ndangwa/lilangwa) fish, gutted and separated from the gills, were captured from the Kinsuka fishing site in Pool Malebo on the Congo River in Kinshasa to determine lead and cadmium concentrations, and to assess the health risk associated with their continued consumption. After spectrophotometric analysis with HACH - DR 2400 in accordance with the laboratory's operating procedure, it appears that all the species of fish analyzed are contaminated with lead and cadmium at concentrations far above the European Union edibility standard. The continued consumption of 14.24 grams per day of fish from the Kinsuka fishing site poses the obvious risk of developing chronic disease throughout life, especially in children. The hazard quotients and the associated hazard quotients, whether for children or for adults, are far greater than 1. This risk could become even worse when the purchasing power of consumers is improved in the future. It is up to the government to ban the consumption of these fish and to take binding measures to reduce the contamination of aquatic ecosystems, to introduce national standards for the discharge of industrial wastewater and for foodstuffs intended for human consumption.
Author Keywords: Concentration, toxic metals, edible, evaluation, health risks.
Abstract: (french)
Au total 51 échantillons des poissons Distichodus fasciolatus (Mboto en lingala), Mormyrops anguilloides (Monzanda/ Nzanda) et Schilbe mystus (Ndangwa/lilangwa), éviscérés et séparés des branchies ont été capturés du site de pêche de Kinsuka dans le Pool Malebo sur le fleuve Congo à Kinshasa pour déterminer les concentrations en plomb et cadmium, et d’évaluer le risque sanitaire lié à leur consommation continue. Apres analyse spectrophotométrique au HACH - DR 2400 conformément au mode opératoire du laboratoire, il ressort que toutes les espèces de poissons analysés sont contaminées en plomb et cadmium à des concentrations de loin supérieures à la norme de comestibilité de l’Union européenne. La consommation continue de 14.24 grammes par jours des poissons du site de pêche de Kinsuka expose aux risques évidents de développer une maladie chronique au cours de la vie, surtout des enfants. Les quotients de dangers et les quotients de danger associé, qu’ils soient pour les enfants ou pour les adultes sont de loin supérieurs à 1. Ce risque pourrait encore s’aggraver lorsque le pouvoir d’achat des consommateurs serait amélioré à l’avenir. Au gouvernement d’interdire la consommation de ces poissons et de prendre des mesures contraignantes pour réduire la contamination des écosystèmes aquatiques, d’introduire les normes nationales pour le rejet d’eaux usées industrielles et pour les denrées destinées à la consommation humaine.
Author Keywords: Concentration, métaux toxiques, comestibles, évaluation, risques sanitaires.
How to Cite this Article
Nsimanda Ipey Camille and Ingonda Bololo Soleil, “Concentrations of toxic metals in edible fish from the Congo river at the Kinsuka site in Kinshasa (DR Congo) and evaluation of potential health risk,” International Journal of Innovation and Scientific Research, vol. 60, no. 2, pp. 66–71, May 2022.
