[ Evaluation du risque de contamination de la chaine Alimentaire en éléments traces métalliques de trois espèces maraichères cultivées au bord de la rivière Lubumbashi (KATANGA/RD CONGO) ]
Volume 10, Issue 4, March 2015, Pages 1125–1133
Serge Kashimbo Kalala1, E. Mbikayi2, M. Ngoy Shutcha3, and L. Lukens4
1 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD Congo
2 Departement de Chimie, Université de Lubumbashi (2004), Faculté des Sciences, technicien de Laboratoire, BP 1825, RD. Congo
3 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD. Congo
4 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD. Congo
Original language: French
Copyright © 2015 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.
In Katanga, the diversity of metallurgical processes has led to contamination of the environment by trace metals (TM). An essay was set for the purpose of determining the level of TM contents in the water of the river Lubumbashi, the ground on which families make crops and plants produced on it to assess the risk of contamination of the food chain.
Soil samples were collected at the study site, sieved, homogenized and made of a composite left in the pots. The 2x3 factorial designs with 6 repetitions, 36 treatments were installed. The "soil" factor 2 variants: T0, T1, and "plant species" factor has 3 levels (cabbage, spinach, and amaranth).
The results showed very high levels, Cu [1200], Co [1600], Mn [1200] ppm in soils of the Lubumbashi's river, they are superior to the standard NFU 44-041 in force France. These high levels of TM ground T1 have led a deleterious effect on plant growth involving their dead. The irrigation water provided an additional TM soil of about 0.00063 mg/L Cu, 0.000225 Co, Fe 796.5, 504 Mn, Cd and 0.513 0 36 Pb, which is important inputs.
Contamination of the food chain through the consumption of vegetables grown on this soil is evident and real. The use of effective technologies bioremediation of contaminated soils is important to reduce the risk of food poisoning in humans.
Author Keywords: Mining Waste, Effluents, River Lubumbashi, ETM, Contamination, Noxious effect.
Volume 10, Issue 4, March 2015, Pages 1125–1133
Serge Kashimbo Kalala1, E. Mbikayi2, M. Ngoy Shutcha3, and L. Lukens4
1 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD Congo
2 Departement de Chimie, Université de Lubumbashi (2004), Faculté des Sciences, technicien de Laboratoire, BP 1825, RD. Congo
3 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD. Congo
4 Département de Phytotechnie, Faculté des Sciences Agronomiques, Université de Lubumbashi, BP 1825, Lubumbashi, RD. Congo
Original language: French
Copyright © 2015 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
In Katanga, the diversity of metallurgical processes has led to contamination of the environment by trace metals (TM). An essay was set for the purpose of determining the level of TM contents in the water of the river Lubumbashi, the ground on which families make crops and plants produced on it to assess the risk of contamination of the food chain.
Soil samples were collected at the study site, sieved, homogenized and made of a composite left in the pots. The 2x3 factorial designs with 6 repetitions, 36 treatments were installed. The "soil" factor 2 variants: T0, T1, and "plant species" factor has 3 levels (cabbage, spinach, and amaranth).
The results showed very high levels, Cu [1200], Co [1600], Mn [1200] ppm in soils of the Lubumbashi's river, they are superior to the standard NFU 44-041 in force France. These high levels of TM ground T1 have led a deleterious effect on plant growth involving their dead. The irrigation water provided an additional TM soil of about 0.00063 mg/L Cu, 0.000225 Co, Fe 796.5, 504 Mn, Cd and 0.513 0 36 Pb, which is important inputs.
Contamination of the food chain through the consumption of vegetables grown on this soil is evident and real. The use of effective technologies bioremediation of contaminated soils is important to reduce the risk of food poisoning in humans.
Author Keywords: Mining Waste, Effluents, River Lubumbashi, ETM, Contamination, Noxious effect.
Abstract: (french)
Au Katanga, la diversité des procédés métallurgiques a entrainé une contamination de l'environnement en éléments traces métalliques(ETM). Un essai a été installé dans le but de déterminer le niveau des teneurs en ETM dans l'eau de la rivière Lubumbashi, le sol sur lequel les familles font des cultures ainsi que des plantes produites sur celui-ci afin d'évaluer le risque de contamination de la chaine alimentaire.
Des échantillons de sols ont été récoltés sur le site d'étude, tamisés, homogénéisés et constitués en un composite reparti dans les pots. Le dispositif factoriel 2x3 dont 6 répétitions, 36 traitements a été installé. Le facteur «sol» ayant 2 variantes: T0, T1, et le facteur «espèce végétale» a 3 niveaux (chou, épinard, amarante).
Les résultats obtenus ont montré des teneurs très élevées, en Cu (1200), Co (1600), Mn (1200) ppm pour les sols du bord de la rivière Lubumbashi, celles-ci sont supérieures à la norme NFU 44-041 en vigueur en France. Ces fortes teneurs en ETM du sol T1 ont entrainé un effet délétère sur la croissance des plantes impliquant leurs morts. L'eau d'arrosage a apporté un supplément d'ETM aux sols de l'ordre de 0,00063 mg/L de Cu, 0,000225 de Co, 796,5 de Fe, 504 de Mn, 0,513 de Cd et 0,36 de Pb, ce qui constitue des apports importants. La contamination de la chaîne alimentaire par la consommation des légumes cultivés sur ce sol est évidente et réelle. Le recours aux techniques efficientes de bioremédiation des sols contaminés est important pour réduire les risques d'intoxication alimentaire chez l'homme.
Author Keywords: Déchets miniers, Effluents, Rivière Lubumbashi, ETM, Contamination, Effet délétère.
How to Cite this Article
Serge Kashimbo Kalala, E. Mbikayi, M. Ngoy Shutcha, and L. Lukens, “Risk assessment of the chain Food of contamination in metal trace elements of three garden crops species cultivated along the Lubumbashi's River (Katanga / DR. CONGO),” International Journal of Innovation and Applied Studies, vol. 10, no. 4, pp. 1125–1133, March 2015.
