Vol. 13, Issue 4 (2025)
Assessment of environmental risks related to the distribution of trace metal elements in the carrier phases of sediments in the bays of Bingerville and Adiopodoumé
Author(s): Irié Bi Trazie Jean-Gael, N’Guessan Yao Mathieu, Kokoa Chia Marie Reine and Coulibaly Aoua
Abstract: The Bingerville and Adiopodoumé’s bays, located on the northern shore of the Ebrié’s lagoon, are of social and economic importance to the local population. Trace metal speciation has not yet been studied. The objective of this study is to identify the different chemical forms of trace metals and estimate the associated toxicity risks. A survey in the Ebrié lagoon collected three sediment samples from each bay. These sediments were calcined, analyzed with a diffractometer, and treated with distilled water to determine their organic matter content, mineralogy, and pH. The low organic matter content in both bays is believed to be due to regular dredging of sediments in these bays. The sediments are acidic, with an average pH values of 5.18 in Bingerville’s bay and 5.42 in Adiapodoumé’s bay. The geological formations around the Ebrié lagoon supplies the bays with kaolinite and quartz. These metals are associated to the four sedimentary fractions. The pH, organic matter content, sediment grain size, and hydrodynamics are the basis for the variation in metallic element levels in the bays. The affinity gradient of the exchangeable phase of metals is the same in the sediments of Bingerville and Adiapodoumé’s bays: Cu ? ? Cd ? Zn ? Ni ? Pb. Copper is the most mobile metal in the bays studied. The pollution level is between classes 1 and 3. The toxicity risk ranges from low to very high. Cadmium and copper present the greatest toxic risks.
DOI: 10.22271/chemi.2025.v13.i4b.12577
Pages: 135-142 | 336 Views 142 Downloads
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How to cite this article:
Irié Bi Trazie Jean-Gael, N’Guessan Yao Mathieu, Kokoa Chia Marie Reine, Coulibaly Aoua. Assessment of environmental risks related to the distribution of trace metal elements in the carrier phases of sediments in the bays of Bingerville and Adiopodoumé. Int J Chem Stud 2025;13(4):135-142. DOI: 10.22271/chemi.2025.v13.i4b.12577
