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Chemical characterization of metallic trace elements in aquatic plants: A case study of some plants in Porto Novo lagoon, South Benin

Author Affiliations

  • 1Laboratory of Inorganic Chemistry and Environment (LACIE), Faculty of Science and Technology (FAST), University of Abomey-Calavi, BP: 4521 Cotonou Benin
  • 2Laboratory of Applied Hydrology (LHA), National Institute of Water (INE), University of Abomey-Calavi, 01 BP: 526 Cotonou Benin
  • 3Laboratory of Applied Hydrology (LHA), National Institute of Water (INE), University of Abomey-Calavi, 01 BP: 526 Cotonou Benin
  • 4Laboratory of Applied Hydrology (LHA), National Institute of Water (INE), University of Abomey-Calavi, 01 BP: 526 Cotonou Benin

Int. Res. J. Environment Sci., Volume 9, Issue (4), Pages 66-73, October,22 (2020)


The lagoon of Porto-Novo is located in southern part of the republic of Benin. It covers average 30 km2 in dry season and 50 km2in wet season and represents the outlet which through the waters of the Ouémé River flows into the Atlantic Ocean by the Lagos Channel. The main objective of this study is to describe spatial distribution of copper and zinc in sediments but especially in aquatic plants in order to evaluate bioconcentration and to provide further information on heavy pollution by copper and zinc in the lagoon. Sediments, water and six aquatic plants (Typha domingensis, Eichhornia crassipes, Ipomea aquatica, Ludwigia abyssinica, Nymphaea lotus and Cyperus papyrus) samples were collectedat seven sites in the lagoon. The chemical analysis of the two heavy metals (Cu and Zn) was done using standardized spectrophotometer methods. The results were compared to standards and show that the concentrations in the lagoon exceed the recommended values. The pollution should have anthropogenic sources and need to be monitored to avoid damage to ecosystem of this important surface water of Benin.


  1. Bloundi, M.K., (2005)., Geochemical study of the Nador lagoon (Eastern Morocco): Impacts of anthropogenic factors., Ph.D. thesis, School and Observatory of Earth Sciences and Mohamed V-Agdal University; pp 238.
  2. Suziki Y., Nogi A. and Fukasawa T. (1988)., Gall 11 Protein, an Auxiliary Transcription Activator for Genes Encoding Galactose-Metabolizing Enzymes in Saccharomyces cereuisiae., Molecular and Cellular Biology, 8(11), 4991-4999.
  3. Rayms-Keller, A., Olson K.E., McGaw, M., Oray, C., Carison J.O. and Beaty, B.J. (1998)., Effects of heavy metals on Aedesaegypti (Diptera: Culicidae) larvae., Ecotoxicol. Environ. Saf., 39, 41-47.
  4. Zahran, M.A., El-Amier, Y.A., Elnaggar, A.A., Abd El-Azim, H. and El-Alfy, M.A. (2015)., Assessment and Distribution of Heavy Metals Pollutants in Manzala Lake, Egypt., Journal of Geoscience and Environment Protection, 3, 107-122. 36017
  5. Langstone, W., Burt, G., and Pope, N. (1999)., Bioavailability of metals in sediments of the Dogger Bank (Central North Sea): A mesocosm study., Estuarine, Coastal and Shelf Science, 48, 519-540.
  6. Chouti, W., (2011)., Study of the chemical pollution of a tropical lagoon (water, sediments, fish): Case of the lagoon of Porto-Novo (southern Benin)., Ph.D. Thesis, Faculty of Science and Technology (FAST), University of Abomey Calavi, 100p + Annexes.
  7. Ali, M.B., Tripathi, R.D., Rai, U.N., Pal, A. and Singh, S.P. (1999)., Physico-chemical characteristics and pollution level of Lake Nainital (U.P., India): Role of macrophytes and phytoplankton in biomonitoring and phytoremediation of toxic metal ions., Chemosphere, 39(12), 2171-2182.
  8. Bonanno G. and Lo Giudice, R. (2010)., Heavy metal bioaccumulation by the body of Phragmitesaustralis (common reed) and their potential use as contamination indicators., Ecol Ind., 10(3), 639-645.
  9. Bonanno, G. (2011)., Trace element accumulation and distribution in the organ of Phragmites australis (common reed) and biomonitoring applications., Ecotoxicol Environ Saf., 74, 1057-1064.
  10. Bragato, C., Brix, H. and Malagoli, M. (2006)., Accumulation of nutrients and heavy metals in Phragmites australis (Cav.) Trin. Ex Steudel and Bolboschoenusmaritimus (L.) Palla in a constructed wetland of the Venice lagoon watershed., Environmental Pollution., 144(3), 967-975.
  11. Fritioff, A. and Greger, M. (2006)., Uptake and distribution of Zn, Cu, Cd, and Pb in an aquatic plant Potamogetonnatans., Chemosphere, 63(2), 220-227.
  12. Mishra, V.K. and Tripathi, B.D. (2009)., Accumulation of chromium and zinc from aqueous solutions using water hyacinth (Eichhorniacrassipes)., J Hazard Mater. 164(2-3), 1059-1063.
  13. Gurlya, L.M. (2011)., Phytoremediation as Effective Way for Decreasing Content of Heavy Metals in Soils., Ecology Scientific Papers, 152, 57-59.
  14. Lozak, A., Soltyk, K., Ostapezuk, P. and Fijalek, Z. (2001)., Determination of Selected Trace Elements in Herbs and Their Infusions., Science of the Total Environment, 14(1-3), 1-8.
  15. Chouti, W. K., Chitou, N., Kelome, N., Kpako, B. B., Honvou, V. D. and Tossou, M. (2017)., Physico-chemical Characterization and Coastal Lagoon Toxicity Study, from Togbin to Grand-Popo (South-West Benin)., European Scientific Journal, 13(27), 131-151.
  16. Dèdjiho, A. (2014)., Diagnostic study of the chemical pollution of water bodies of the lagoon complex of the South-West of Benin: case of the Ahémé-Gbezoume lake., Thesis dissertation, University of Abomey-Calavi.
  17. Chouti, W., Mama, D. and Alapini F. (2010)., Study of the spatio-temporal variations of the pollution of the waters of the Porto-Novo lagoon (southern Benin)., Int. J. Biol. Chem. Sci., 4(4), 1017-1029.
  18. Chouti, W., Mama, D., Changotade, O., Alapini, F. and Boukari M. (2010)., Study of metallic trace elements contained in the sediments of the Porto-Novo lagoon (southern Benin)., Journal of Applied Biosciences, 34, 2186-2197.
  19. Jepkoech, J. K., Simiyu, G. M., Arusei, M. (2013)., Selected Heavy Metals in Water and Sediments and Their Bioconcentrations in Plant (Polygonum pulchrum) in Sosiani River, Uasin Gishu County, Kenya., Journal of Environmental Protection, 2013, 4, 796-802.
  20. Chouti, W., Bocodaho, L., Adandedji, F. M., Kpako, B., Dèdjiho, A., Lyde Tometin and Mama D (2017)., Zinc toxicity and sequential extraction in water and sediments of tropical lake: A case study of Ahémé Lake in Benin., Res. J. Chem. Sci, 7(5), 23-30.
  21. Débièche T. (2002)., Evolution de la qualité des eaux (salinité, azote et métaux lourds) sous leffet de la pollution saline, agricole et industrielle., Thèse obtenue à lU. F. R. des Sciences et Techniques de lUniversité de Franche-Comté Ecole Doctorale Homme, Environnement, Santé, 235p.
  22. Marschner H. (1995)., Mineral nutrition of higher plants. Second Edition., Academic Press, 889 p.
  23. Fox, T.C. and Guerinot, M.L. (1998)., Molecular Biology of Cation Transport in Plants., Annu Rev Plant Physiol Plant Mol Biol, 49, 669-696.
  24. Ladislas, S. (2011)., Transfer within a structure of water treatment from urban runoff-Development of a complementary treatment process., Thesis dissertation submitted to obtain the degree of Doctor of the School of Mines Under the label of the University Nantes Angers Le Mans, 208 p.
  25. Okunowo, W.O. and Ogunkanm L.A. (2010)., Phytoremediation potential of some heavy metals by water hyacinth., Int. J. Biol. Chem. Sci., 4(2), 347-353.
  26. Campion, B.B. and Odametey, S.N. (2012)., Can Wetland Vegetation be Used to Describe Anthropogenic Effects and Pollution Patterns? The Case of Dakodwom and Kaase Wetlands in the Kumasi Metropolis, Ghana., Journal of Environment and Ecology, 3(1), 185-201.
  27. Shuvaeva, O.V., Belchenko, L.A. and Romanova, T.E. (2013)., Studies on cadmium accumulation by some selected floating macrophytes., International Journal of Phytoremediation, 15, 979-990.
  28. Akomolafe, G.F. and Nkwocha, O.P. (2017)., Assessment of the distribution of aquatic macrophytes in lafia and domametropolis, nasarawa state, Nigeria., Journal of Research in Forestry, Wildlife & Environment, 9(4), 56-65.
  29. Ruchuwararak, P., Intamat, S., Tengjaroenkul, B. and Neeratanaphan, L. (2018)., Bioaccumulation of heavy metals in local edible plants near a municipalallandfill and the related human health risk assessment., Human and Ecological Risk Assessment, DOI: 10.1080/10807039.2018. 1473755.