EVALUATION OFECOTOXICAL RISKS OF SOMEMETALLICTRACE ELEMENTS IN LAGOON OF PORTO- NOVO IN BENIN.

  • Unit of Research in Ecotoxicology and Quality Study, Laboratory of Study and Research in Applied Chemistry, Polytechnical School of Abomey-Calavi, University of Abomey-Calavi, 07 BP 507 Ste Rita Cotonou, Benin.
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The study focus on evaluation of concentrations of four Metallic Trace Element (MTE)Cu, Zn, Mn and Pb in the compartments of hydroaquatic system of Lagoon of Porto-Novo, located in southeastern of Benin. Levels of lead, manganese, copper and zinc in sediments, pisces and eichorniacrassipes from lagoon are very important and fish from the lagoon had higher metal content and can present risk for human consumption.The highest values are 65.6 ppm of Zn in fish,11335.7 ppm for Mn in eichorniacrassipes and 41.5 ppm for Cu in sediments. In pisces, level of Pb, wich is most dangerous metal for human health among those analysed, reaches 22.8ppm.The results show high levels which reflect anthropogenics impacts on the lagoon. The contamination sources would probably relate runoff, waste waters, solid waste discharges and the erosion of agricultural lands.

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[Mickaël Vitus Martin Kpessou Saizonou, Alassane Youssao Abdoul Karim, Magloire Nonvignon Gbaguidi, Léonce Firmin Comlan Dovonon, Azim Mohamed Abibou, Samson Agossou and Henri Houenoukpo Soclo (2018); EVALUATION OFECOTOXICAL RISKS OF SOMEMETALLICTRACE ELEMENTS IN LAGOON OF PORTO- NOVO IN BENIN. Int. J. of Adv. Res. 6 (Oct). 559-565] (ISSN 2320-5407). www.journalijar.com

Mickaël Vitus Martin Kpessou Saizonou
Unit of Research in Ecotoxicology and Quality Study, Laboratory of Study and Research in Applied Chemistry, Polytechnical School of Abomey-Calavi, University of Abomey,-Calavi, 07 BP 507 Ste Rita Cotonou, Benin.

DOI:

Article DOI: 10.21474/IJAR01/7838      
DOI URL: https://dx.doi.org/10.21474/IJAR01/7838

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