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Assessment of Natural Radioactivity and Monitoring of Radiological Hazards in Construction Materials from Kerala, India

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Title Assessment of Natural Radioactivity and Monitoring of Radiological Hazards in Construction Materials from Kerala, India
 
Creator V, Vishnu C
Joseph, Antony
 
Subject Natural radioactivity
Construction materials
Gamma-ray spectrometry
Multivariate statistical techniques
 
Description 700-711
Evaluating the natural radioactivity in construction materials is significant, particularly considering the prevailing belief that
our homes offer the safest living environments. To investigate this, 38 samples of building materials were collected from highly
populated residential areas within the Malappuram district in Kerala, India. The levels of naturally occurring radionuclides
(226Ra, 232Th, and 40K) were quantified using a NaI (Tl) detector. Radiological indices, such as radium equivalent, absorbed dose
rate, effective dose rate, hazard indices, alpha index, gamma index, and cancer risk, were calculated for the samples. The
activity concentrations of 226Ra, 232Th, and 40 K ranged from 8.84 ± 0.3 (flooring oxide) to 46.84 ± 2.11Bq/kg (rock samples),
11.84 ± 0.2 (pumice sample) to 130.21 ± 8Bq/kg (granite sample), and 58.63 ± 4 (pumice) to 1024.32 ± 22Bq/kg (granite) with
an average of 25.80 ± 4.61, 55.05 ± 6.2, and 392.30 ± 16 Bq/kg. (average ± standard deviation), respectively. As a result, all of
these computed parameters fell within safe limits. The examined building materials were found to have a negligible impact on
radiation exposure, posing no significant radiation risks to residents. Researchers utilized statistical techniques to understand the
interrelationships and similarities among radionuclides and radiological characteristics across samples, including Pearson
correlation, principal component analysis, and cluster analysis.
 
Date 2024-08-05T10:11:56Z
2024-08-05T10:11:56Z
2024-08
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/64323
https://doi.org/10.56042/ijpap.v62i8.7746
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.62(08) [August 2024]