American Journal of Environmental Protection

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Concentrations and Human Health Risk Assessment of Cd, Co, Cr, Ni, and Pb via Eating White Granulated Garri Produced in Nigeria

Received: 06 October 2019    Accepted: 06 November 2019    Published: 06 July 2020
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Abstract

White granulated garri, an extensively consumed foodstuff in Nigeria made from fermented cassava tubers has recorded little studies on its heavy metals content. The concentrations of Cd, Co, Cr, Ni and Pb in commercial white granulated garri commonly sold in three major markets in Port Harcourt, Nigeria were established using Inductively Coupled Plasma - Mass Spectrometry (ICP-MS) after microwave-assisted acid digestion. The mean concentrations (x ̅±SD,in mg/kg on dry-weight basis) of heavy metals in garri samples were Cd: 0.021 ± 0.005, Co: 0.027 ± 0.004, Cr: 2.50 ± 0.047, Ni: 0.849 ± 0.021, and Pb: 0.522 ± 0.039 respectively. A food frequency questionnaire-based (FFQ) survey on dietary consumption rates of garri as a source of carbohydrate among consumers and marketers showed that garri accounted for ˃ 97.5% of total carbohydrate consumed in Nigeria. Statistical evaluation of the data by one-way analysis of variance discloses noteworthy differences of metal contents for Cd, Co, Ni and Pb in garri from the study area with the exception of Cr. The mean daily intake of metals (mg/person/day) from garri consumption using dietary modelling was found to be Cd: 1.49 x 10-4, Co: 1.34 x 10-5, Cr: 1.24 x 10-2, Ni: 4.23 x 10-3 and Pb: 2.60 x 10-3 respectively. These values are lower than the upper tolerable daily intake limits for heavy metals in food. The target hazard quotients (THQ), health risk index (HRI) and lifetime cancer risk (CR) for Cd, Co, Cr, Ni, and Pb indicate that, the probable human health risk associated with consumption of garri for the target population is moderately low at the moment. However, modest consumption rate of the product is recommended due to potential bioaccumulation of heavy metals found in garri.

DOI 10.11648/j.ajep.20200904.11
Published in American Journal of Environmental Protection (Volume 9, Issue 4, August 2020)
Page(s) 77-85
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

Garri, Heavy Metals, Cassava, Health Risk Assessment

References
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[16] Divya, L, Jessen George and Midhun G (2015). Heavy Metal Contamination of Some Common Tubers Sold in Local Markets of Ernakulam District, Kerala, India. International Research Journal of Biological Sciences. Vol. 4 (3), 49-52, March (2015) Int. Res. J. Biological Sci.
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Author Information
  • Department of Pure & Industrial Chemistry, Faculty of Science, University of Port Harcourt, Port Harcourt, Nigeria

  • Department of Pure & Industrial Chemistry, Faculty of Science, University of Port Harcourt, Port Harcourt, Nigeria

  • Department of Chemical Sciences, Faculty of Science, Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria

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    Pereware Adowei, Elvis Ebenezer, Douye Markmanuel. (2020). Concentrations and Human Health Risk Assessment of Cd, Co, Cr, Ni, and Pb via Eating White Granulated Garri Produced in Nigeria. American Journal of Environmental Protection, 9(4), 77-85. https://doi.org/10.11648/j.ajep.20200904.11

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    Pereware Adowei; Elvis Ebenezer; Douye Markmanuel. Concentrations and Human Health Risk Assessment of Cd, Co, Cr, Ni, and Pb via Eating White Granulated Garri Produced in Nigeria. Am. J. Environ. Prot. 2020, 9(4), 77-85. doi: 10.11648/j.ajep.20200904.11

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    AMA Style

    Pereware Adowei, Elvis Ebenezer, Douye Markmanuel. Concentrations and Human Health Risk Assessment of Cd, Co, Cr, Ni, and Pb via Eating White Granulated Garri Produced in Nigeria. Am J Environ Prot. 2020;9(4):77-85. doi: 10.11648/j.ajep.20200904.11

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  • @article{10.11648/j.ajep.20200904.11,
      author = {Pereware Adowei and Elvis Ebenezer and Douye Markmanuel},
      title = {Concentrations and Human Health Risk Assessment of Cd, Co, Cr, Ni, and Pb via Eating White Granulated Garri Produced in Nigeria},
      journal = {American Journal of Environmental Protection},
      volume = {9},
      number = {4},
      pages = {77-85},
      doi = {10.11648/j.ajep.20200904.11},
      url = {https://doi.org/10.11648/j.ajep.20200904.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ajep.20200904.11},
      abstract = {White granulated garri, an extensively consumed foodstuff in Nigeria made from fermented cassava tubers has recorded little studies on its heavy metals content. The concentrations of Cd, Co, Cr, Ni and Pb in commercial white granulated garri commonly sold in three major markets in Port Harcourt, Nigeria were established using Inductively Coupled Plasma - Mass Spectrometry (ICP-MS) after microwave-assisted acid digestion. The mean concentrations (x ̅±SD,in mg/kg on dry-weight basis) of heavy metals in garri samples were Cd: 0.021 ± 0.005, Co: 0.027 ± 0.004, Cr: 2.50 ± 0.047, Ni: 0.849 ± 0.021, and Pb: 0.522 ± 0.039 respectively. A food frequency questionnaire-based (FFQ) survey on dietary consumption rates of garri as a source of carbohydrate among consumers and marketers showed that garri accounted for ˃ 97.5% of total carbohydrate consumed in Nigeria. Statistical evaluation of the data by one-way analysis of variance discloses noteworthy differences of metal contents for Cd, Co, Ni and Pb in garri from the study area with the exception of Cr. The mean daily intake of metals (mg/person/day) from garri consumption using dietary modelling was found to be Cd: 1.49 x 10-4, Co: 1.34 x 10-5, Cr: 1.24 x 10-2, Ni: 4.23 x 10-3 and Pb: 2.60 x 10-3 respectively. These values are lower than the upper tolerable daily intake limits for heavy metals in food. The target hazard quotients (THQ), health risk index (HRI) and lifetime cancer risk (CR) for Cd, Co, Cr, Ni, and Pb indicate that, the probable human health risk associated with consumption of garri for the target population is moderately low at the moment. However, modest consumption rate of the product is recommended due to potential bioaccumulation of heavy metals found in garri.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Concentrations and Human Health Risk Assessment of Cd, Co, Cr, Ni, and Pb via Eating White Granulated Garri Produced in Nigeria
    AU  - Pereware Adowei
    AU  - Elvis Ebenezer
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    DO  - 10.11648/j.ajep.20200904.11
    T2  - American Journal of Environmental Protection
    JF  - American Journal of Environmental Protection
    JO  - American Journal of Environmental Protection
    SP  - 77
    EP  - 85
    PB  - Science Publishing Group
    SN  - 2328-5699
    UR  - https://doi.org/10.11648/j.ajep.20200904.11
    AB  - White granulated garri, an extensively consumed foodstuff in Nigeria made from fermented cassava tubers has recorded little studies on its heavy metals content. The concentrations of Cd, Co, Cr, Ni and Pb in commercial white granulated garri commonly sold in three major markets in Port Harcourt, Nigeria were established using Inductively Coupled Plasma - Mass Spectrometry (ICP-MS) after microwave-assisted acid digestion. The mean concentrations (x ̅±SD,in mg/kg on dry-weight basis) of heavy metals in garri samples were Cd: 0.021 ± 0.005, Co: 0.027 ± 0.004, Cr: 2.50 ± 0.047, Ni: 0.849 ± 0.021, and Pb: 0.522 ± 0.039 respectively. A food frequency questionnaire-based (FFQ) survey on dietary consumption rates of garri as a source of carbohydrate among consumers and marketers showed that garri accounted for ˃ 97.5% of total carbohydrate consumed in Nigeria. Statistical evaluation of the data by one-way analysis of variance discloses noteworthy differences of metal contents for Cd, Co, Ni and Pb in garri from the study area with the exception of Cr. The mean daily intake of metals (mg/person/day) from garri consumption using dietary modelling was found to be Cd: 1.49 x 10-4, Co: 1.34 x 10-5, Cr: 1.24 x 10-2, Ni: 4.23 x 10-3 and Pb: 2.60 x 10-3 respectively. These values are lower than the upper tolerable daily intake limits for heavy metals in food. The target hazard quotients (THQ), health risk index (HRI) and lifetime cancer risk (CR) for Cd, Co, Cr, Ni, and Pb indicate that, the probable human health risk associated with consumption of garri for the target population is moderately low at the moment. However, modest consumption rate of the product is recommended due to potential bioaccumulation of heavy metals found in garri.
    VL  - 9
    IS  - 4
    ER  - 

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