SEASONAL METAL POLLUTION LEVEL AND ECOLOGICAL RISKS OF THE SUPERFICIAL SEDIMENTS FROM A TROPICAL LAGOON AREA
- Constitution and Reaction Matter Laboratory (CRML), UFR SSMT, Felix Houphouet-Boigny University, 22 B.P. 582 Abidjan 22, Cote dIvoire.
- Department of Public Health, Hydrology and Toxicology (DP2HT), UFR SPB, Felix Houphouet-Boigny University, 22 BP 1306 Abidjan 22, Cote dIvoire.
- Water Quality Analysis and Control Laboratory (LACQUE), National Drinking Water Office (ONEP), Abidjan, Cote dIvoire, 04 BP 42 Abidjan 04.
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The aim of this study was to the assessment of the seasonal level metal contamination of the superficial sediments from the lagoon area II and to deduce the likely seasonal ecological risks which results. This study were conducted during one year (from June 2020 to May 2021) and the concentration in eight trace metals (As, Cd, Cr, Cu, Hg, Pb, Ni and, Zn) of these substrates, obtained in this period, were used. Seven metal contamination indexes, six ecological risks indexes and, two sediment qualities guidelines were used for this purpose. The results highlighted the very severe contamination of these superficial sediments in all season by all these trace metals in the whole, especially by As, Cd and Hg. So, the seasonal ecological risks for its fauna, particularly for its benthic fauna, were very severe. The population of its benthic fauna threatened by this pollution was relatively important, to 21% in this period.
[Mahi Agole Mahi Arthur, Yao Marcel Konan, Claon Jean Stephane and Trokourey Albert (2022); SEASONAL METAL POLLUTION LEVEL AND ECOLOGICAL RISKS OF THE SUPERFICIAL SEDIMENTS FROM A TROPICAL LAGOON AREA Int. J. of Adv. Res. 10 (Oct). 1036-1049] (ISSN 2320-5407). www.journalijar.com
Constitution and Reaction Matter Laboratory (CRML), UFR SSMT, Felix Houphouët-Boigny University, 22 B.P. 582 Abidjan 22, Côte d’Ivoire.
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