International Journal of Environmental Protection and Policy

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Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)

Received: 11 July 2019    Accepted: 12 August 2019    Published: 26 August 2019
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Abstract

This study is conducted to characterize the heavy metal contamination of CHU-MEL effluents discharged into the Cotonou lagoon in order to assess the potential risk of these discharges for this ecosystem. To achieve this objective, the effluents collected at the end of the pipes acting as weirs in the lagoon were analyzed. The results from physico-chemical and heavy metals analyzes have made it possible to assess the quality of the effluents. The values of pH, temperature, conductivity, TDS and dissolved oxygen measured in situ are, on average, 7.95; 29.60°C; 639.60 μS/cm; 457.48 mg/l and 0.22 mg/L. The determination of heavy metals in the effluents showed low levels of contamination. The average levels of lead, cadmium, mercury and total iron are 0.1727 mg/L, 0.0261 mg/L, 0.0010 mg/L and 0.25 mg/L, respectively. This study shows that most of the parameters studied in the CHU-MEL effluent are in compliance with the standards. These effluents therefore pose a low risk for the aquatic organisms of the receiving environment, this added to the dilution effect of the effluents in the waters of the lagoon. However, the continual discharge of these effluents into the lagoon with their share of heavy metals.

DOI 10.11648/j.ijepp.20190704.12
Published in International Journal of Environmental Protection and Policy (Volume 7, Issue 4, July 2019)
Page(s) 109-116
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Aquatic Environment, Heavy Metal, Hospital Effluents, Pollution

References
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Author Information
  • Department of Biochemistry and Cellular Biology, University of Abomey-Calavi, Abomey-Calavi, Benin; Department of Zoology, University of Abomey-Calavi, Abomey-Calavi, Benin

  • Department Fundamental and Biological Sciences, University of Parakou, Parakou, Benin

  • Department of Chemistry, Faculty of Science and Technology, University of Abomey-Calavi, Abomey-Calavi, Benin

  • Department of Zoology, University of Abomey-Calavi, Abomey-Calavi, Benin

  • Ministry of the Environment and Sustainable Development, Cotonou, Benin

  • Department of Biochemistry and Cellular Biology, University of Abomey-Calavi, Abomey-Calavi, Benin

  • Department of Biochemistry and Cellular Biology, University of Abomey-Calavi, Abomey-Calavi, Benin

  • Department of Biochemistry and Cellular Biology, University of Abomey-Calavi, Abomey-Calavi, Benin

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    Elias Alexandre Setondji Adanlokonon, Boni Christophe Chabi, Wilfried Gbedode Kanhounnon, Dogbe Clement Adjahouinou, Etiennette Dassi, et al. (2019). Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin). International Journal of Environmental Protection and Policy, 7(4), 109-116. https://doi.org/10.11648/j.ijepp.20190704.12

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    ACS Style

    Elias Alexandre Setondji Adanlokonon; Boni Christophe Chabi; Wilfried Gbedode Kanhounnon; Dogbe Clement Adjahouinou; Etiennette Dassi, et al. Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin). Int. J. Environ. Prot. Policy 2019, 7(4), 109-116. doi: 10.11648/j.ijepp.20190704.12

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    AMA Style

    Elias Alexandre Setondji Adanlokonon, Boni Christophe Chabi, Wilfried Gbedode Kanhounnon, Dogbe Clement Adjahouinou, Etiennette Dassi, et al. Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin). Int J Environ Prot Policy. 2019;7(4):109-116. doi: 10.11648/j.ijepp.20190704.12

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  • @article{10.11648/j.ijepp.20190704.12,
      author = {Elias Alexandre Setondji Adanlokonon and Boni Christophe Chabi and Wilfried Gbedode Kanhounnon and Dogbe Clement Adjahouinou and Etiennette Dassi and Marc Sohounou and Adjouavi Yvette Deguenon and Patrick Aleodjrodo Edorh},
      title = {Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)},
      journal = {International Journal of Environmental Protection and Policy},
      volume = {7},
      number = {4},
      pages = {109-116},
      doi = {10.11648/j.ijepp.20190704.12},
      url = {https://doi.org/10.11648/j.ijepp.20190704.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijepp.20190704.12},
      abstract = {This study is conducted to characterize the heavy metal contamination of CHU-MEL effluents discharged into the Cotonou lagoon in order to assess the potential risk of these discharges for this ecosystem. To achieve this objective, the effluents collected at the end of the pipes acting as weirs in the lagoon were analyzed. The results from physico-chemical and heavy metals analyzes have made it possible to assess the quality of the effluents. The values of pH, temperature, conductivity, TDS and dissolved oxygen measured in situ are, on average, 7.95; 29.60°C; 639.60 μS/cm; 457.48 mg/l and 0.22 mg/L. The determination of heavy metals in the effluents showed low levels of contamination. The average levels of lead, cadmium, mercury and total iron are 0.1727 mg/L, 0.0261 mg/L, 0.0010 mg/L and 0.25 mg/L, respectively. This study shows that most of the parameters studied in the CHU-MEL effluent are in compliance with the standards. These effluents therefore pose a low risk for the aquatic organisms of the receiving environment, this added to the dilution effect of the effluents in the waters of the lagoon. However, the continual discharge of these effluents into the lagoon with their share of heavy metals.},
     year = {2019}
    }
    

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  • TY  - JOUR
    T1  - Heavy Metal Content (Hg. Pb. Cd and Fe) of CHU-MEL Effluents Discharged in the Cotonou Lagoon (Benin)
    AU  - Elias Alexandre Setondji Adanlokonon
    AU  - Boni Christophe Chabi
    AU  - Wilfried Gbedode Kanhounnon
    AU  - Dogbe Clement Adjahouinou
    AU  - Etiennette Dassi
    AU  - Marc Sohounou
    AU  - Adjouavi Yvette Deguenon
    AU  - Patrick Aleodjrodo Edorh
    Y1  - 2019/08/26
    PY  - 2019
    N1  - https://doi.org/10.11648/j.ijepp.20190704.12
    DO  - 10.11648/j.ijepp.20190704.12
    T2  - International Journal of Environmental Protection and Policy
    JF  - International Journal of Environmental Protection and Policy
    JO  - International Journal of Environmental Protection and Policy
    SP  - 109
    EP  - 116
    PB  - Science Publishing Group
    SN  - 2330-7536
    UR  - https://doi.org/10.11648/j.ijepp.20190704.12
    AB  - This study is conducted to characterize the heavy metal contamination of CHU-MEL effluents discharged into the Cotonou lagoon in order to assess the potential risk of these discharges for this ecosystem. To achieve this objective, the effluents collected at the end of the pipes acting as weirs in the lagoon were analyzed. The results from physico-chemical and heavy metals analyzes have made it possible to assess the quality of the effluents. The values of pH, temperature, conductivity, TDS and dissolved oxygen measured in situ are, on average, 7.95; 29.60°C; 639.60 μS/cm; 457.48 mg/l and 0.22 mg/L. The determination of heavy metals in the effluents showed low levels of contamination. The average levels of lead, cadmium, mercury and total iron are 0.1727 mg/L, 0.0261 mg/L, 0.0010 mg/L and 0.25 mg/L, respectively. This study shows that most of the parameters studied in the CHU-MEL effluent are in compliance with the standards. These effluents therefore pose a low risk for the aquatic organisms of the receiving environment, this added to the dilution effect of the effluents in the waters of the lagoon. However, the continual discharge of these effluents into the lagoon with their share of heavy metals.
    VL  - 7
    IS  - 4
    ER  - 

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