Selenium is a trace element that can have both beneficial and harmful effects on aquatic life. The Aby Lagoon is a coastal environment in Côte d’Ivoire that receives selenium inputs from various natural and anthropogenic sources. The aim of this study was to assess the levels of selenium in the sediments of the Aby Lagoon and its tributaries, the Tanoe River and the Tendo Lagoon, and to examine the spatial and seasonal variations of selenium concentrations. Sediment samples were collected from different sites and seasons, and selenium concentrations were measured by atomic fluorescence spectrometry. The results showed that the average concentration of selenium in the sediments of the Aby Lagoon was 0.82 mg/kg, indicating moderate contamination. The concentration of selenium varied between sites and seasons, with higher values in the channel of the Tendo Lagoon and during the dry season. The study highlighted the complexity of selenium dynamics in aquatic ecosystems, and the need to take into account seasonal and spatial variability as well as interactions between environmental factors. The study also suggested potential ecotoxicological risks for some sensitive organisms in certain areas of the lagoon. This study contributes to the knowledge of the dynamics of selenium in lagoon ecosystems and to the assessment of the environmental risks associated with its presence.
References
[1]
Pałka, I., Saniewska, D., Bielecka, L., Kobos, J. and Grzybowski, W. (2024) Uptake and Trophic Transfer of Selenium into Phytoplankton and Zooplankton of the Southern Baltic Sea. Science of the Total Environment, 909, Article ID: 168312. https://doi.org/10.1016/j.scitotenv.2023.168312
[2]
Bañuelos, G.S., Stushnoff, C., Walse, S.S., Zuber, T., Yang, S.I., Pickering, I.J. and Freeman, J.L. (2012) Biofortified, Selenium Enriched, Fruit and Cladode from Three Opuntia Cactus Pear Cultivars Grown on Agricultural Drainage Sediment for Use in Nutraceutical Foods. Food Chemistry, 135, 9-16. https://doi.org/10.1016/j.foodchem.2012.04.021
[3]
Wang, F., Zhang, J., Xu, L., Ma, A., Zhuang, G., Huo, S., Zou, B., Qian, J. and Cui, Y. (2024) Selenium Volatilization in Plants, Microalgae, and Microorganisms. Heliyon, 10, E26023. https://doi.org/10.1016/j.heliyon.2024.e26023
[4]
Marimuthu, J., Rangamaran, V.R., Subramanian, S.H.S., Balachandran, K.R.S., Thenmozhi Kulasekaran, N., Vasudevan, D., Lee, J.-K., Ramalingam, K. and Gopal, D. (2022) Deep-Sea Sediment Metagenome from Bay of Bengal Reveals Distinct Microbial Diversity and Functional Significance. Genomics, 114, Article ID: 110524. https://doi.org/10.1016/j.ygeno.2022.110524
[5]
Vinceti, M., Filippini, T., Biswas, A., Michalke, B., Dhillon, K.S. and Naidu, R. (2024) Chapter 17. Selenium: A Global Contaminant of Significant Concern to Environment and Human Health. In: Naidu, R., Ed., Inorganic Contaminants and Radionuclides, Elsevier, Amsterdam, 427-480. https://doi.org/10.1016/B978-0-323-90400-1.00018-5
[6]
Nandi, A., Pecetta, S. and Bloom, D.E. (2023) Global Antibiotic Use during the COVID-19 Pandemic: Analysis of Pharmaceutical Sales Data from 71 Countries, 2020-2022. EClinicalMedicine, 57, Article ID: 101848. https://doi.org/10.1016/j.eclinm.2023.101848
[7]
Ma, X., Lei, W., Lin, X., Li, X., Yang, S., Liu, X. and Liu, T. (2024) Characteristics and Migration Patterns of Selenium in Soil, Crops, and Hair within a Typical Alkaline Arid Agricultural Region of Northwest China. Journal of Geochemical Exploration, 258, Article ID: 107412. https://doi.org/10.1016/j.gexplo.2024.107412
[8]
Zhang, L., Ning, J., Liu, G., Tong, L., Gan, Y., Li, C., Yang, W. and Pi, K. (2023) Mechanisms of Changing Speciation and Bioavailability of Selenium in Agricultural Mollisols of Northern Cold Regions. Science of the Total Environment, 858, Article ID: 159897. https://doi.org/10.1016/j.scitotenv.2022.159897
[9]
Nie, X., Luo, D., Ma, H., Wang, L., Yang, C., Tian, X. and Nie, Y. (2024) Different Effects of Selenium Speciation on Selenium Absorption, Selenium Transformation and Cadmium Antagonism in Garlic. Food Chemistry, 443, Article ID: 138460. https://doi.org/10.1016/j.foodchem.2024.138460
[10]
Weng, M., Dolgova, N.V., Vogt, L.I., Qureshi, M., Sokaras, D., Kroll, T., SaitŌ, H., O’Donoghue, J.L., Watson, G.E., Myers, G.J., Sekikawa, T., Pickering, I.J. and George, G.N. (2024) Synchrotron Speciation of Umbilical Cord Mercury and Selenium after Environmental Exposure in Niigata. NeuroToxicology, 100, 117-123. https://doi.org/10.1016/j.neuro.2023.12.011
[11]
Donner, M.W., Cuss, C.W., Poesch, M., Sinnatamby, R.N., Shotyk, W. and Siddique, T. (2018) Selenium in Surface Waters of the Lower Athabasca River Watershed: Chemical Speciation and Implications for Aquatic Life. Environmental Pollution, 243, 1343-1351. https://doi.org/10.1016/j.envpol.2018.09.067
[12]
Amyot, M., Husser, E., St-Fort, K. and Ponton, D.E. (2023) Effect of Cooking Temperature on Metal Concentrations and Speciation in Fish Muscle and Seal Liver. Ecotoxicology and Environmental Safety, 262, Article ID: 115184. https://doi.org/10.1016/j.ecoenv.2023.115184
[13]
Dong, Z., Liu, Y., Dong, G. and Wu, H. (2021) Effect of Boiling and Frying on the Selenium Content, Speciation, and in Vitro Bioaccessibility of Selenium-Biofortified Potato (Solanum tuberosum L.). Food Chemistry, 348, Article ID: 129150. https://doi.org/10.1016/j.foodchem.2021.129150
[14]
El-Badry, A.E.-M.A. and Khalifa, M.M. (2017) The Occurrence and Distribution of High-Arsenic, Selenium, Tin and Antimony in Bottom Sediments of Burullus Lagoon and Its Effects on Human Health, Egypt. Journal of African Earth Sciences, 136, 305-311. https://doi.org/10.1016/j.jafrearsci.2017.08.001
[15]
Ibrahim, A.S. and Al-Farawati, R. (2017) Selenium Determination, Distribution, Behavior, Sources, and Its Relationship to the Physico-Chemical Parameters in Coastal Polluted Lagoon along Jeddah Coast, Red Sea.
[16]
Johns, C., Luoma, S.N. and Elrod, V. (1988) Selenium Accumulation in Benthic Bivalves and Fine Sediments of San Francisco Bay, the Sacramento-San Joaquin Delta, and Selected Tributaries. Estuarine, Coastal and Shelf Science, 27, 381-396. https://doi.org/10.1016/0272-7714(88)90095-9
[17]
Meseck, S. and Cutter, G. (2012) Selenium Behavior in San Francisco Bay Sediments. Estuaries and Coasts, 35, 646-657. https://doi.org/10.1007/s12237-011-9444-0
[18]
Aguilar-Betancourt, C.M., González-Sansón, G., Kidd, K.A., Munkittrick, K.R., Curry, R.A., Kosonoy-Aceves, D., Lucano-Ramírez, G., Ruiz-Ramírez, S. and Flores-Ortega, J.R. (2016) Fishes as Indicators of Untreated Sewage Contamination in a Mexican Coastal Lagoon. Marine Pollution Bulletin, 113, 100-109. https://doi.org/10.1016/j.marpolbul.2016.08.073
[19]
Hartwell, S.I., Lomax, T. and Dasher, D. (2020) Characterization of Sediment Contaminants in Arctic Lagoons and Estuaries. Marine Pollution Bulletin, 152, Article ID: 110873. https://doi.org/10.1016/j.marpolbul.2019.110873
[20]
Fred-Ahmadu, O.H., Ayejuyo, O.O., Tenebe, I.T. and Benson, N.U. (2022) Occurrence and Distribution of Micro(Meso)Plastic-Sorbed Heavy Metals and Metalloids in Sediments, Gulf of Guinea Coast (SE Atlantic). Science of the Total Environment, 813, Article ID: 152650. https://doi.org/10.1016/j.scitotenv.2021.152650
[21]
Overah, C.L., Iwegbue, C.M.A., Ossai, E.K. and Nwajei, G.E. (2012) Trace Elements in Sediments of Selected Gutters and Bar-Beach, Lagos, Nigeria. Journal of Applied Sciences and Environmental Management, 16, 253-255.
[22]
Peak, D. (2006) Adsorption Mechanisms of Selenium Oxyanions at the Aluminum Oxide/Water Interface. Journal of Colloid and Interface Science, 303, 337-345. https://doi.org/10.1016/j.jcis.2006.08.014
[23]
Azad, A.M., Frantzen, S., Bank, M.S., Nilsen, B.M., Duinker, A., Madsen, L. and Maage, A. (2019) Effects of Geography and Species Variation on Selenium and Mercury Molar Ratios in Northeast Atlantic Marine Fish Communities. Science of the Total Environment, 652, 1482-1496. https://doi.org/10.1016/j.scitotenv.2018.10.405
[24]
Tomiyasu, T., Nozoe, C., Ruiz, W.L.G., Kodamatani, H. and Kanzaki, R. (2023) Distribution of Selenium and Mercury Concentrations in Sediments of Kagoshima Bay: Can Submarine Volcanic Activity Affect the Distribution of Selenium in Sediments? Environmental Earth Sciences, 82, Article No. 480. https://doi.org/10.1007/s12665-023-11159-9
[25]
Ben Salem, Z., Capelli, N., Laffray, X., Elise, G., Ayadi, H. and Aleya, L. (2014) Seasonal Variation of Heavy Metals in Water, Sediment and Roach Tissues in a Landfill Draining System Pond (Etueffont, France). Ecological Engineering, 69, 25-37. https://doi.org/10.1016/j.ecoleng.2014.03.072
[26]
Patra, A., Das, S., Mandal, A., Mondal, N.S., Kole, D., Dutta, P. and Ghosh, A.R. (2023) Seasonal Variation of Physicochemical Parameters and Heavy Metal Concentration in Water and Bottom Sediment at Harboring Areas of Digha Coast, West Bengal, India. Reg. Stud. Mar. Sci. 62, Article ID: 102945. https://doi.org/10.1016/j.rsma.2023.102945
[27]
Vinothkannan, A., Charles, P.E. and Rajaram, R. (2022) Ecological Risk Assessment and Seasonal Variation of Heavy Metals in Water and Sediment Collected from Industrially Polluted Cuddalore Coast, Southeastern India. Regional Studies in Marine Science, 49, Article ID: 102134. https://doi.org/10.1016/j.rsma.2021.102134
[28]
Debnath, A., Singh, P.K. and Sharma, Y.C. (2024) Spatial Distribution of Heavy Metals in the Sediments of River Ganges, India: Occurrence, Contamination, Source Identification, Seasonal Variations, Mapping, and Ecological Risk Evaluation. Marine Pollution Bulletin, 198, Article ID: 115910. https://doi.org/10.1016/j.marpolbul.2023.115910
[29]
Hossain, M.B., Sultana, J., Jolly, Y.N., Nur, A.-A.U., Sultana, S., Miazee, R., Islam, M.S., Paray, B.A., Arai, T. and Yu, J. (2023) Seasonal Variation, Contamination and Ecological Risk Assessment of Heavy Metals in Sediments of Coastal Wetlands along the Bay of Bengal. Marine Pollution Bulletin, 194, Article ID: 115337. https://doi.org/10.1016/j.marpolbul.2023.115337
[30]
Tu, Y.-J., Luo, P.-C., Li, Y.-L., Liu, J., Sun, T.-T., Li, G.-J. and Duan, Y.-P. (2023) Seasonal Heavy Metal Speciation in Sediment and Source Tracking via Cu Isotopic Composition in Huangpu River, Shanghai, China. Ecotoxicology and Environmental Safety, 260, Article ID: 115068. https://doi.org/10.1016/j.ecoenv.2023.115068
[31]
Monier, M.N., Soliman, A.M. and Al-Halani, A.A. (2023) The Seasonal Assessment of Heavy Metals Pollution in Water, Sediments, and Fish of Grey Mullet, Red Seabream, and Sardine from the Mediterranean Coast, Damietta, North Egypt. Regional Studies in Marine Science, 57, Article ID: 102744. https://doi.org/10.1016/j.rsma.2022.102744
[32]
Olomukoro, J.O. and Enabulele, C.O. (2024) Assessment of Heavy Metal Contamination and Sediment Characteristics in Ozomu Lake, Southern Nigeria: Implications for Environmental Health Kuwait. Journal of Science, 51, Article ID: 100192. https://doi.org/10.1016/j.kjs.2024.100192
[33]
Clark, S.K. and Johnson, T.M. (2010) Selenium Stable Isotope Investigation into Selenium Bio-Geochemical Cycling in a Lacustrine Environment: Sweitzer Lake, Colorado. Journal of Environmental Quality, 39, 2200-2210. https://doi.org/10.2134/jeq2009.0380
[34]
Werkneh, A.A., Gebretsadik, G.G. and Gebru, S.B. (2023) Review on Environmental Selenium: Occurrence, Public Health Implications and Biological Treatment Strategies. Environmental Challenges, 11, Article ID: 100698. https://doi.org/10.1016/j.envc.2023.100698
[35]
Bhattacharya, B., Sarkar, S.K. and Das, R. (2003) Seasonal Variations and Inherent Variability of Selenium in Marine Biota of a Tropical Wetland Ecosystem: Implications for Bioindicator Species. Ecological Indicators, 2, 367-375. https://doi.org/10.1016/S1470-160X(03)00006-2
[36]
El-Sawy, M.A., Mohamedein, L.I. and El-Moselhy, Kh.M. (2023) Evaluation of Arsenic, Selenium, Tin and Mercury in Water and Sediments of Bitter Lakes, Suez Canal, Egypt. Egyptian Journal of Aquatic Research, 49, 137-143. https://doi.org/10.1016/j.ejar.2023.02.002
[37]
Lino, A.S., Kasper, D., Carvalho, G.O., Guida, Y. and Malm, O. (2020) Selenium in Sediment and Food Webs of the Tapajós River Basin (Brazilian Amazon) and Its Relation to Mercury. Journal of Trace Elements in Medicine and Biology, 62, Article ID: 126620. https://doi.org/10.1016/j.jtemb.2020.126620