Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (2): 19 doi: 10.1007/s41365-019-0558-6

• NUCLEAR ENERGY SCIENCE AND ENGINEERING •     Next Articles

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

Shittu Abdullahi2,3 • Aznan Fazli Ismail1,2 • Syazwani Mohd Fadzil1,2 • Supian Samat2   

  1. 1 Nuclear Science Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
    2 Centre for Frontier Science, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia
    3 Department of Physics, Faculty of Science, Gombe State University, P.M.B. 127, Gombe, Nigeria
  • Received:2018-06-05 Revised:2018-07-11 Accepted:2018-07-11
  • Contact: Aznan Fazli Ismail E-mail:aznan@ukm.edu.my
  • Supported by:
    This work was partly supported by the Universiti Kebangsaan Malaysia (UKM) under Grant Number GGPM-2017-084.
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Shittu Abdullahi, Aznan Fazli Ismail, Syawani Mohd Fadzil, Supian Samat. Assessment of the long-term possible radiological risk from the use of ceramic tiles in Malaysia.Nuclear Science and Techniques, 2019, 30(2): 19     doi: 10.1007/s41365-019-0558-6
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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.

Key words: Radiological risk, RESRAD-BUILD computer code, Ceramic tile, Room size, Ventilation rate