Determination of the radiological risk from the natural radioactivity in irrigation at selected areas of Peninsular Malaysia
This study involves a comprehensive analysis of 226Ra, 232Th, and 40K concentration from irrigation water samples. Water samples were obtained, and the physical parameters were examined. Subsequently, the corresponding radiological risks to human health were estimated. The concentration levels of...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/15482/1/22.pdf http://journalarticle.ukm.my/15482/ http://www.ukm.my/jsm/malay_journals/jilid49bil6_2020/KandunganJilid49Bil6_2020.html |
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| Summary: | This study involves a comprehensive analysis of 226Ra, 232Th, and 40K concentration from irrigation water samples. Water
samples were obtained, and the physical parameters were examined. Subsequently, the corresponding radiological
risks to human health were estimated. The concentration levels of 226Ra, 232Th, and 40K in water samples amounted to
1.51 ± 0.30, 0.17 ± 0.09, and 7.67 ± 3.07 Bq L-1, respectively, which were within the concentration levels reported in the
literature from Malaysia and other countries worldwide. Based on the food intake rate by MoH and UNSCEAR, the
annual ingestion effective dose (ID) and the cancer risks corresponding to radionuclide intake in irrigation were below
the recommended maximum values. Meanwhile, the average hazard indices and annual outdoor effective dose (ED)
amounted to 0.01 and 1.39 mSv year-1, respectively. It was inferred from the findings of this study that the water used
as the sample does not have any significant radiological impacts to human body and is safe to be used as irrigation in
the related area. |
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