Seiny Roger N’dri1,
Amadou Kouyaté2,
,
Issiaka Sanou3,
N’guessan Jean Louis Kouakou2,
Kouakou Séraphin Konan2,
Nina Lydie Amon4,
Leygnima Yaya Ouattara5,
Mougo André Tigori2,
Ali Sanou1, 5,
Brou Dibi2 1Laboratoire des Sciences Physiques Fondamentales et Appliquées (LSPFA), Ecole Normale Supérieure (ENS), 08 BP 10 Abidjan, Côte d’Ivoire
2Laboratoire des Sciences et Technologies de l’Environnement (LSTE), Université Jean Lorougnon Guédé, UFR Environnement, BP 150 Daloa, Côte d’Ivoire
3Laboratoire de Chimie et Energies Renouvelables (LaCER), Unité de Formation et de Recherche en Sciences Exactes et Appliquées (UFR/SEA), Université Nazi BONI, Bobo-Dioulasso, B.P. 1091 Bobo 01, Burkina Faso.
4Département de l’Environnement et de la Santé, Université Institut Pasteur de Côte d’Ivoire (IPCI), 01 BP 490 Abidjan 01, Côte d’Ivoire
5Laboratoire des Procédés Industriels de Synthèses, de l’Environnement et des Energies Nouvelles (LAPISEN), Institut National Polytechnique Félix Houphouët-Boigny (INP-HB), BP 1313 Yamoussoukro, Côte d’Ivoire
Journal of Environment Pollution and Human Health.
2024,
Vol. 12 No. 2, 38-46
DOI: 10.12691/jephh-12-2-4
Copyright © 2024 Science and Education PublishingCite this paper: Seiny Roger N’dri, Amadou Kouyaté, Issiaka Sanou, N’guessan Jean Louis Kouakou, Kouakou Séraphin Konan, Nina Lydie Amon, Leygnima Yaya Ouattara, Mougo André Tigori, Ali Sanou, Brou Dibi. Assessment of Heavy Metals Contamination in Sediments of Bra Kanon Lake (Daloa, Côte d’Ivoire) Using Pollution Indices.
Journal of Environment Pollution and Human Health. 2024; 12(2):38-46. doi: 10.12691/jephh-12-2-4.
Correspondence to: Amadou Kouyaté, Laboratoire des Sciences et Technologies de l’Environnement (LSTE), Université Jean Lorougnon Guédé, UFR Environnement, BP 150 Daloa, Côte d’Ivoire. Email:
amadoukyte@yahoo.frAbstract
The objective of this study is to evaluate the level of metal contamination in the sediments of Lake Bra Kanon (Daloa, West-Central Côte d’Ivoire) by applying pollution indices. Sediment samples were collected and transported to the laboratory for analysis. A total of ten (10) heavy metals, namely Aluminum, Arsenic, Cadmium, Chromium, Copper, Iron, Manganese, Nickel, Lead and Zinc, were measured using an argon plasma ionizing source mass spectrometer (ICP-MS). The recorded values were compared to those of the upper continental crust. The results obtained showed that the sediments are contaminated by cadmium (4.69 – 6.92 mg/kg), copper (53.4– 65.2 mg/kg), and manganese. (751.8 – 985 mg/kg). Furthermore, the order of accumulation of the metal charge in the sediments is: D1 > D3 > D2. Environmental assessment of sediment pollution by heavy metals was carried out using contamination factor (CF), degree of contamination (DC), modified degree of contamination (mDC), index of metal pollution (MPI) and pollution load index (PLI). The results of CF (CFCd = 46.9 – 69.2; CFCu = 3.73 – 4.56; CFMn = 1.42 – 1.87), DC (54.73 – 77.63), mDC (5.473 – 7.763) and MPI (5.81 – 8.55) showed that the sediments were polluted. The pollution load index (PLI < 1) indicated that the lake sediments were weakly affected by anthropogenic sources. However, the results reveal signs of the lake's vulnerability. Hence the need to develop strategies for the protection of this aquatic ecosystem.
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