Evaluation of radiometric standards of major building materials used in dwellings of South-Western Nigeria

Aladeniyi, K. and Arogunjo, A.M. and Pereira, A.J.S.C. and Khandaker, Mayeen Uddin * and Bradley, D.A. * and Sulieman, A. (2021) Evaluation of radiometric standards of major building materials used in dwellings of South-Western Nigeria. Radiation Physics and Chemistry, 178. p. 109021. ISSN 0969-806X

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Official URL: http://doi.org/10.1016/j.radphyschem.2020.109021


Realizing the probable health risk via the exposures to gamma radiations caused by terrestrial radionuclides, concentrations of 40K, 226Ra(238U) and 232Th radionuclides in popularly used building materials were investigated by gamma-ray spectroscopy. A total of 173 samples representative of major building materials (both structural and decorative category) used for Nigerian dwellings were studied. The mean (GM) activity concentrations of the 40K, 226Ra(238U) and 232Th in the surveyed samples are 286 ± 3, 29 ± 3 and 26 ± 5 Bqkg-1 respectively. Associated radiation hazard parameters were estimated and the results are compared with the available literature data and the prescribed limits set by international regulatory bodies to identify the radiometric standards of the studied materials. This study shows that the use of tile and granite should be minimized for building constructions. Moreover, perpetual monitoring of radiation level in clay- and mud-bricks should be intensified to avoid unwanted radiation exposure to dwellers. Overall, measured data may serve as an important component of the database to set up guidelines required for controlling building materials usage in dwelling purposes.

Item Type: Article
Uncontrolled Keywords: Structural and decorative building materials; Primordial radionuclides; Non-negligible radiation hazards; Database for safe management
Subjects: R Medicine > R Medicine (General) > R895-920 Medical Physics/Medical Radiology
Divisions: Others > Non Sunway Academics
Sunway University > School of Medical and Life Sciences [formerly School of Healthcare and Medical Sciences until 2020] > Centre of Biomedical Physics [wef 2021 changed to Research Centre for Applied Physics and Radiation Technologies and moved to SET ]
Depositing User: Dr Janaki Sinnasamy
Related URLs:
Date Deposited: 11 Feb 2021 08:20
Last Modified: 18 Nov 2021 01:33
URI: http://eprints.sunway.edu.my/id/eprint/1571

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