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Assessment of the long-term possible radiological risk from the use of ceramic tiles in Malaysia

  • Shittu Abdullahi
  • Aznan Fazli IsmailEmail author
  • Syazwani Mohd Fadzil
  • Supian Samat
Article
  • 36 Downloads

Abstract

This study investigated the level of natural radioactivity and radiological risks of 40 different ceramic tiles through gamma-ray spectroscopy using a high-purity germanium detector. The calculated activity concentrations were evaluated to determine their potential radiological risks to human health. Furthermore, the activity concentrations were subjected to the RESRAD-BUILD computer code to assess the effect of ventilation rate, dweller position, and room size and direction on the total effective dose (TED). The simulated TED received by a receptor when changing the ventilation rate in a room ranged from 0.26 ± 0.01 to 0.61 ± 0.01 mSv/y; however, the percentage variations in the TED due to dweller position and room size are 34, 31, and 35% and 33, 27, and 40% for the x-, y-, and z-directions, respectively. The overall TED received by the dweller based on room size and direction is 0.75 mSv/y. The calculated radiological risk parameters were all below the recommended maximum limit. However, the TED received by the dweller is significantly affected by the directions of the measurement, position, room size, and ventilation. Therefore, estimating the TED from one direction would underestimate the total dose received by the dweller.

Keywords

Radiological risk RESRAD-BUILD computer code Ceramic tile Room size Ventilation rate 

Notes

Acknowledgments

The author would like to acknowledge all lab technicians of the Nuclear Science Program, UKM, for their technical support throughout the work. Shittu Abdullahi also wishes to appreciate and acknowledge Gombe State University, Gombe, Nigeria, for providing their Ph.D. fellowship.

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Copyright information

© China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Shittu Abdullahi
    • 2
    • 3
  • Aznan Fazli Ismail
    • 1
    • 2
    Email author
  • Syazwani Mohd Fadzil
    • 1
    • 2
  • Supian Samat
    • 2
  1. 1.Nuclear Science Program, Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia (UKM)BangiMalaysia
  2. 2.Centre for Frontier Science, Faculty of Science and TechnologyUniversiti Kebangsaan Malaysia (UKM)BangiMalaysia
  3. 3.Department of Physics, Faculty of ScienceGombe State UniversityGombeNigeria

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