RADIOLOGICAL IMPACT ASSESSMENT OF NATURAL RADIOACTIVITY OF CERAMIC WARES AND DECORATIONS IN ABEOKUTA, NIGERIA

Authors

  • S. G. OGUNOBI Department of Science Laboratory Technology, Abraham AdesanyaPolytechnic, IjebuIgbo.Ogun State, Nigeria. Author
  • A. A. ABDULKAREEM Department of Chemical Science, Faculty of Science, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria. Author
  • A.T. AYODELE Department of Science Laboratory Technology, Abraham AdesanyaPolytechnic, IjebuIgbo.Ogun State, Nigeria. Author

Keywords:

Abeokuta, Gamma ray spectrometry, Health hazard, Ceramic Tablewares, Natural radioactivity

Abstract

Gamma ray spectrometry was carried out on twenty different ceramic tableware and flower vases procured from the local market in Abeokuta, using Sodium iodide detector to assess their natural radioactivities and ascertain likelihood of health hazards. The range of radioactivity of the ceramic samples for K–40 is 190.34 ± 12.419 to 2364.56 ± 128.9Bq/kg, for U–238 it is BDL to 108.34 ± 14.81Bq/kg and for Th–232 it is BDL to 8.33 ± 1.3Bq/kg. The mean specific activity for all the samples for K–40 is 1355.97 ± 71.28Bq/kg, for U-238 it is 39.49 ± 5.41Bq/kg and for Th–232 it is 3.94.± 0.46Bq/kg . The range of Radiumequivalent forth samples is 81.64 to 222.99 Bq/kg with mean of 149.53 ± 11.56Bq/Kg.The gamma indices were all less than unity, while the absorbed dose rates of mean value 77.17 ± 5.75 nGy/h as well as annual effective doses of mean value 0.38 ± 0.03 mSv/yr were below the standard maximum safety limit for all building materials and indoor radiation as recommended by World Health Organization (WHO) and International Atomic Energy Agency (IAEA), hence they are safe for human use. 

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Author Biographies

  • S. G. OGUNOBI , Department of Science Laboratory Technology, Abraham AdesanyaPolytechnic, IjebuIgbo.Ogun State, Nigeria.

    Department of Physics, Faculty of Science, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria. And Department of Science Laboratory Technology, Abraham Adesanya Polytechnic, Ijebu Igbo. Ogun State, Nigeria.

     

  • A.T. AYODELE, Department of Science Laboratory Technology, Abraham AdesanyaPolytechnic, IjebuIgbo.Ogun State, Nigeria.

    Department of Physics, Faculty of Science, Olabisi Onabanjo University, Ago-Iwoye, Ogun State, Nigeria. And Department of Science Laboratory Technology, Abraham Adesanya Polytechnic, Ijebu Igbo. Ogun State, Nigeria.

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Published

2023-08-01

How to Cite

RADIOLOGICAL IMPACT ASSESSMENT OF NATURAL RADIOACTIVITY OF CERAMIC WARES AND DECORATIONS IN ABEOKUTA, NIGERIA. (2023). The Journals of the Nigerian Association of Mathematical Physics, 65, 1 –10. https://nampjournals.org.ng/index.php/home/article/view/1

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