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Evaluation of Heavy Metal Concentration in Maize Grown in Selected Industrial Areas of Ogun State and its Effects on Urban Food Security

Received: 11 August 2013     Published: 20 September 2013
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Abstract

This project was carried out to investigate the effect industrial pollution as it affects the heavy metal concentrations flared into the atmosphere, washed down by rain and absorb by maize cultivated in industrial areas of Ogun State. This was suspected to have effects on food safety .In addition to determine the effect of soil factor and the accumulation of metals in maize. This study also ascertained the basis for environmental protection and reduction of the negative implication of heavy metals in the human and livestock health. Maize and soil samples were collected from industrial areas in Ogun State and were analyzed for both chemical and metal concentrations. The metals Fe, Cu, Mg, Ni, Pb, Ca, and Co were determined using Atomic Absorption Spectrophotometer (AAS). The results of the chemical analysis of the maize collected from the industrial areas of Ogun State ranged between 6.35-9.45%, 8.31-12.68%, 1.49-8.294% 1.746-2.792%, and 71.32-78.896% for moisture, crude protein, ether extract, and carbohydrate respectively while the chemical analysis of the soil ranged between 0.65-1.90%, 6.63-7.89%, and 4.01-8.6% for moisture, pH, and nitrogen content respectively. The concentrations of the metals Fe, Cu, Mg, Ni, Pb, Ca, and Co in maize ranged between 28.5-59.5mg/kg, 2-10.7mg/kg, 248.3-321mg/kg, 1.8-4.775mg/kg, 62.5-150mg/kg, and 1.2-10.2mg/kg respectively while the concentrations of the soil samples were 28.9-59.6mg/kg, 4-12.2mg/kg, 297.3-350.5mg/kg, 4.55-9.28mg/kg, 83.3-177.5mg/kg, 7.6-21.8mg/kg, and 0.075-0.46mg/kg for Fe, Cu, Mg, Ni, Pb, Ca, and Co respectively. Some of the metals such as Ni in Ewekoro, Pb in Sango, exceeded the recommended limits proposed by WHO/FAO. The results showed that the high concentrations of certain heavy metals in maize revealed the level of food insecurity and this calls for public concern.

Published in International Journal of Science, Technology and Society (Volume 1, Issue 2)
DOI 10.11648/j.ijsts.20130102.12
Page(s) 48-56
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), 2013. Published by Science Publishing Group

Keywords

Heavy Metals, Food Security, Indusrial Pollution, Metal Toxicity, Accumulation of Metals in Maize

References
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[17] Malomo. O., Ogunmoyela, O.A.B., Oluwajoba, S.O., Adekoyeni, O.O. (2012). Evaluation of chemical and heavy metal concentration in maize (Zea mays) from industrial areas of Ogun State. Journal of sustainable development and environmental protection.: 2(3):35-42
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    Malomo Olu, Olufade, O. I., Adekoyeni, O. O., et al. (2013). Evaluation of Heavy Metal Concentration in Maize Grown in Selected Industrial Areas of Ogun State and its Effects on Urban Food Security. International Journal of Science, Technology and Society, 1(2), 48-56. https://doi.org/10.11648/j.ijsts.20130102.12

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    Malomo Olu; Olufade; O. I.; Adekoyeni; O. O., et al. Evaluation of Heavy Metal Concentration in Maize Grown in Selected Industrial Areas of Ogun State and its Effects on Urban Food Security. Int. J. Sci. Technol. Soc. 2013, 1(2), 48-56. doi: 10.11648/j.ijsts.20130102.12

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    AMA Style

    Malomo Olu, Olufade, O. I., Adekoyeni, O. O., et al. Evaluation of Heavy Metal Concentration in Maize Grown in Selected Industrial Areas of Ogun State and its Effects on Urban Food Security. Int J Sci Technol Soc. 2013;1(2):48-56. doi: 10.11648/j.ijsts.20130102.12

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  • @article{10.11648/j.ijsts.20130102.12,
      author = {Malomo Olu and Olufade and O. I. and Adekoyeni and O. O. and Jimoh and M. O.},
      title = {Evaluation of Heavy Metal Concentration in Maize Grown in Selected Industrial Areas of Ogun State and its Effects on Urban Food Security},
      journal = {International Journal of Science, Technology and Society},
      volume = {1},
      number = {2},
      pages = {48-56},
      doi = {10.11648/j.ijsts.20130102.12},
      url = {https://doi.org/10.11648/j.ijsts.20130102.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijsts.20130102.12},
      abstract = {This project was carried out to investigate the effect industrial pollution as it affects the heavy metal concentrations flared into the atmosphere, washed down by rain and absorb by maize cultivated in industrial areas of Ogun State. This was suspected to have effects on food safety .In addition to determine the effect of soil factor and the accumulation of metals in maize. This study also ascertained the basis for environmental protection and reduction of the negative implication of heavy metals in the human and livestock health. Maize and soil samples were collected from industrial areas in Ogun State and were analyzed for both chemical and metal concentrations. The metals Fe, Cu, Mg, Ni, Pb, Ca, and Co were determined using Atomic Absorption Spectrophotometer (AAS). The results of the chemical analysis of the maize collected from the industrial areas of Ogun State ranged between 6.35-9.45%, 8.31-12.68%, 1.49-8.294% 1.746-2.792%, and 71.32-78.896% for moisture, crude protein, ether extract, and carbohydrate respectively while the chemical analysis of the soil ranged between 0.65-1.90%, 6.63-7.89%, and 4.01-8.6% for moisture, pH, and nitrogen content respectively. The concentrations of the metals Fe, Cu, Mg, Ni, Pb, Ca, and Co in maize ranged between 28.5-59.5mg/kg, 2-10.7mg/kg, 248.3-321mg/kg, 1.8-4.775mg/kg, 62.5-150mg/kg, and 1.2-10.2mg/kg respectively while the concentrations of the soil samples were 28.9-59.6mg/kg, 4-12.2mg/kg, 297.3-350.5mg/kg, 4.55-9.28mg/kg, 83.3-177.5mg/kg, 7.6-21.8mg/kg, and 0.075-0.46mg/kg for Fe, Cu, Mg, Ni, Pb, Ca, and Co respectively. Some of the metals such as Ni in Ewekoro, Pb in Sango, exceeded the recommended limits proposed by WHO/FAO. The results showed that the high concentrations of certain heavy metals in maize revealed the level of food insecurity and this calls for public concern.},
     year = {2013}
    }
    

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  • TY  - JOUR
    T1  - Evaluation of Heavy Metal Concentration in Maize Grown in Selected Industrial Areas of Ogun State and its Effects on Urban Food Security
    AU  - Malomo Olu
    AU  - Olufade
    AU  - O. I.
    AU  - Adekoyeni
    AU  - O. O.
    AU  - Jimoh
    AU  - M. O.
    Y1  - 2013/09/20
    PY  - 2013
    N1  - https://doi.org/10.11648/j.ijsts.20130102.12
    DO  - 10.11648/j.ijsts.20130102.12
    T2  - International Journal of Science, Technology and Society
    JF  - International Journal of Science, Technology and Society
    JO  - International Journal of Science, Technology and Society
    SP  - 48
    EP  - 56
    PB  - Science Publishing Group
    SN  - 2330-7420
    UR  - https://doi.org/10.11648/j.ijsts.20130102.12
    AB  - This project was carried out to investigate the effect industrial pollution as it affects the heavy metal concentrations flared into the atmosphere, washed down by rain and absorb by maize cultivated in industrial areas of Ogun State. This was suspected to have effects on food safety .In addition to determine the effect of soil factor and the accumulation of metals in maize. This study also ascertained the basis for environmental protection and reduction of the negative implication of heavy metals in the human and livestock health. Maize and soil samples were collected from industrial areas in Ogun State and were analyzed for both chemical and metal concentrations. The metals Fe, Cu, Mg, Ni, Pb, Ca, and Co were determined using Atomic Absorption Spectrophotometer (AAS). The results of the chemical analysis of the maize collected from the industrial areas of Ogun State ranged between 6.35-9.45%, 8.31-12.68%, 1.49-8.294% 1.746-2.792%, and 71.32-78.896% for moisture, crude protein, ether extract, and carbohydrate respectively while the chemical analysis of the soil ranged between 0.65-1.90%, 6.63-7.89%, and 4.01-8.6% for moisture, pH, and nitrogen content respectively. The concentrations of the metals Fe, Cu, Mg, Ni, Pb, Ca, and Co in maize ranged between 28.5-59.5mg/kg, 2-10.7mg/kg, 248.3-321mg/kg, 1.8-4.775mg/kg, 62.5-150mg/kg, and 1.2-10.2mg/kg respectively while the concentrations of the soil samples were 28.9-59.6mg/kg, 4-12.2mg/kg, 297.3-350.5mg/kg, 4.55-9.28mg/kg, 83.3-177.5mg/kg, 7.6-21.8mg/kg, and 0.075-0.46mg/kg for Fe, Cu, Mg, Ni, Pb, Ca, and Co respectively. Some of the metals such as Ni in Ewekoro, Pb in Sango, exceeded the recommended limits proposed by WHO/FAO. The results showed that the high concentrations of certain heavy metals in maize revealed the level of food insecurity and this calls for public concern.
    VL  - 1
    IS  - 2
    ER  - 

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Author Information
  • College of Food Sciences, Bells University of Technology, Ota, P.M.B. 1015, OTA, Ogun State, Nigeria

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