Volume 27, Issue 4, November 2019, Pages 943–954
Rodrigue A. M. A. Adechina1, Nelly C. Kelome2, Christophe KAKI3, Jéchonias B. Hounkpe4, and Nambinina R. F. Randriana5
1 International Chair of Physic Math and Applications UNESCO CHAIR, University of Abomey-Calavi, 072 P.O. Box 50 Cotonou, Benin
2 Department of Earth Sciences, University of Abomey-Calavi, 01 P.O. Box 526 Cotonou, Benin
3 Départment des Sciences de la Terre, Faculté des Sciences et Techniques (FAST), Université d’Abomey-Calavi, 01 BP 4256 Cotonou, Benin
4 Department of Earth Sciences, University of Abomey-Calavi, 01 P.O. Box 526 Cotonou, Benin
5 Department of Chemical and Industrial Process Engineering, University of Antananarivo, 01 P.O. Box 566 Antananarivo 101, Madagascar
Original language: English
Copyright © 2019 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.
The Metallic Trace Elements (MTE) pollution of aquatic ecosystems and their intrusion and inclusion into the food chain exposes public health to enormous risks. This study assesses the risks associated with the pollution of surface sediments from Ouémé delta with Pb. Cu and Cd. In these sediments stratifications, the physicochemical characteristics of the sediments were evaluated. Total metal contents are determined by the inductively coupled plasma mass spectrometer. Risk indices are evaluated, followed by statistical processing in software R 3.3.2. On average, the pH is 5.50; the CEC is 84.24 meq / 100g and the organic carbon (OC) is 0.84 % of mass sediment. Means of Al2O3, Fe2O3 and CaO are respectively 8.14 %; 3.9 % and 6.08 %. The means of copper, lead and cadmium are respectively 32.92 ppm; 23.63 ppm and 1.43 ppm. Overall the degrees of risk related to contamination and ecological risks are low to high. Sites with a high degree of contamination and high ecological risk reflect the importance of the contribution of solid waste from Dantokpa market and the domestic discharges into the metal pollution of Ouémé delta.
Author Keywords: Ouémé delta, Sediments, Metallic Trace Elements, Risk of contamination, Ecological risk.
Rodrigue A. M. A. Adechina1, Nelly C. Kelome2, Christophe KAKI3, Jéchonias B. Hounkpe4, and Nambinina R. F. Randriana5
1 International Chair of Physic Math and Applications UNESCO CHAIR, University of Abomey-Calavi, 072 P.O. Box 50 Cotonou, Benin
2 Department of Earth Sciences, University of Abomey-Calavi, 01 P.O. Box 526 Cotonou, Benin
3 Départment des Sciences de la Terre, Faculté des Sciences et Techniques (FAST), Université d’Abomey-Calavi, 01 BP 4256 Cotonou, Benin
4 Department of Earth Sciences, University of Abomey-Calavi, 01 P.O. Box 526 Cotonou, Benin
5 Department of Chemical and Industrial Process Engineering, University of Antananarivo, 01 P.O. Box 566 Antananarivo 101, Madagascar
Original language: English
Copyright © 2019 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
The Metallic Trace Elements (MTE) pollution of aquatic ecosystems and their intrusion and inclusion into the food chain exposes public health to enormous risks. This study assesses the risks associated with the pollution of surface sediments from Ouémé delta with Pb. Cu and Cd. In these sediments stratifications, the physicochemical characteristics of the sediments were evaluated. Total metal contents are determined by the inductively coupled plasma mass spectrometer. Risk indices are evaluated, followed by statistical processing in software R 3.3.2. On average, the pH is 5.50; the CEC is 84.24 meq / 100g and the organic carbon (OC) is 0.84 % of mass sediment. Means of Al2O3, Fe2O3 and CaO are respectively 8.14 %; 3.9 % and 6.08 %. The means of copper, lead and cadmium are respectively 32.92 ppm; 23.63 ppm and 1.43 ppm. Overall the degrees of risk related to contamination and ecological risks are low to high. Sites with a high degree of contamination and high ecological risk reflect the importance of the contribution of solid waste from Dantokpa market and the domestic discharges into the metal pollution of Ouémé delta.
Author Keywords: Ouémé delta, Sediments, Metallic Trace Elements, Risk of contamination, Ecological risk.
How to Cite this Article
Rodrigue A. M. A. Adechina, Nelly C. Kelome, Christophe KAKI, Jéchonias B. Hounkpe, and Nambinina R. F. Randriana, “Evaluation of contamination risks in Metallic Trace Elements (MTE) in the sediments of Ouémé delta in Benin,” International Journal of Innovation and Applied Studies, vol. 27, no. 4, pp. 943–954, November 2019.
