A study of natural radioactivity in some building materials in Nigeria

A study of natural radioactivity in some building materials in Nigeria

Building materials of different brands were assessed for the concentrations of 226Ra, 232Th and 40K using HPGe detector. The activity concentrations in the measured samples ranged from 27 ± 8 to 82 ± 8 Bq kg−1 for 226Ra, 41 ± 4 to 101 ± 8 Bq kg−1 for 232Th and 140 ± 8 to 940 ± 19 Bq kg−1 for 40K, re...

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Bibliographic Details
Main Authors: Maxwell, Omeje, S. Emmanuel, Joel, O. Olusegun, Adewoyin, O. Cyril, Ehi-Eromosele, T. Ifeanyi, Araka, Embong, Zaidi
Format: Article
Language:English
Published: Oxford University Press 2018
Subjects:
TH2025-3000 Details in building design and construction. Including walls, roofs
Online Access:http://eprints.uthm.edu.my/5367/1/AJ%202018%20%28506%29.pdf
Description
Summary:Building materials of different brands were assessed for the concentrations of 226Ra, 232Th and 40K using HPGe detector. The activity concentrations in the measured samples ranged from 27 ± 8 to 82 ± 8 Bq kg−1 for 226Ra, 41 ± 4 to 101 ± 8 Bq kg−1 for 232Th and 140 ± 8 to 940 ± 19 Bq kg−1 for 40K, respectively. The Radium equivalent (Raeq) activity from the samples was found to be <370 Bq kg−1 as the recommended value for construction materials. This study will set a baseline data for significant standards on radiation exposure of the measured radionuclides in the selected building materials used in Nigeria.

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