Evaluation of radiation hazards and risk assessment in agricultural soil and commonly consumed vegetables in the district of Klang, Malaysia
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Published:2022
Issue:2
Volume:37
Page:145-152
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ISSN:1451-3994
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Container-title:Nuclear Technology and Radiation Protection
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language:en
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Short-container-title:NUCL TECH RAD PROT
Author:
Muthu Hariandra1, Kasi Ramesh2, Subramaniam Ramesh2, Bashir Shahid1
Affiliation:
1. Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, Universitiy of Malaya, Kuala Lumpur, Malaysia Taylor's College, Subang Jaya, Selangor, Malaysia + Higher Institution Centre of Excellence, UM Power Energy Dedicated Advanced Centre, University of Malaya, Kuala Lumpur, Malaysia 2. Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, Universitiy of Malaya, Kuala Lumpur, Malaysia Taylor's College, Subang Jaya, Selangor, Malaysia
Abstract
Commonly consumed vegetables and their surrounding soil samples are gathered
from a farm located in Klang, Selangor. Gamma spectrometry has been utilized
to analyze the activity concentration of the natural radionuclides, 226Ra,
232Th, and 40K in nine vegetables and soil samples collected. These data are
used to evaluate the hazard indices in the soil samples and their
radiological exposure to humans. It is found that the external hazard index
Hex ranged from 0.05 to 0.44 with a mean value of 0.14. The internal hazard
index Hin of the soil samples ranged from 0.05 to 0.56 with a mean value of
0.17. Both Hex and Hin average values are lower than the limit established by
the European Commission for Radiation Protection. The absorbed dose rate DN,
The annual ingestion dose Aeff, annual effective dose equivalent AEDE, and
excess life-time cancer risk, are used to learn the potential risk on the
general public consuming these vegetables. For the vegetable sample, it is
found that the average value for the DN is 6.70 nGyh?1 and ranged between
1.75 to 16.94 nGyh?1. The average value of Aeff is 10.17 mSv, and it ranges
from 2.54 mSv to 22.89 mSv. The range of AEDE is between 2.15 mSv and 20.78
mS, with an average value of 8.21 mSv. Excess life-time cancer risk ELCR is
used to determine the likelihood of cancer development due to the
radiological exposure of con suming these vegetables. It is found that the
average value of ELCR is 2.87?10?5, and the range is from 0.75?10?5 to
7.27?10?5. Both the Aeff and AEDE are found to be lower than the average
world value recommended by UNSCEAR.
Publisher
National Library of Serbia
Subject
Safety, Risk, Reliability and Quality,Nuclear Energy and Engineering
Reference35 articles.
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