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Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace

Considering the probable health risks due to radioactivity input via drinking tea, the concentrations of (226)Ra, (232)Th,(40)K and (137)Cs radionuclides in the soil and the corresponding tea leaves of a large tea plantation were measured using high purity germanium (HPGe) γ-ray spectrometry. Differ...

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Autores principales: Absar, Nurul, Abedin, Jainal, Rahman, Md. Mashiur, Miah, Moazzem Hossain, Siddique, Naziba, Kamal, Masud, Chowdhury, Mantazul Islam, Sulieman, Abdelmoneim Adam Mohamed, Faruque, Mohammad Rashed Iqbal, Khandaker, Mayeen Uddin, Bradley, David Andrew, Alsubaie, Abdullah
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8066812/
https://www.ncbi.nlm.nih.gov/pubmed/33801699
http://dx.doi.org/10.3390/life11040282
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author Absar, Nurul
Abedin, Jainal
Rahman, Md. Mashiur
Miah, Moazzem Hossain
Siddique, Naziba
Kamal, Masud
Chowdhury, Mantazul Islam
Sulieman, Abdelmoneim Adam Mohamed
Faruque, Mohammad Rashed Iqbal
Khandaker, Mayeen Uddin
Bradley, David Andrew
Alsubaie, Abdullah
author_facet Absar, Nurul
Abedin, Jainal
Rahman, Md. Mashiur
Miah, Moazzem Hossain
Siddique, Naziba
Kamal, Masud
Chowdhury, Mantazul Islam
Sulieman, Abdelmoneim Adam Mohamed
Faruque, Mohammad Rashed Iqbal
Khandaker, Mayeen Uddin
Bradley, David Andrew
Alsubaie, Abdullah
author_sort Absar, Nurul
collection PubMed
description Considering the probable health risks due to radioactivity input via drinking tea, the concentrations of (226)Ra, (232)Th,(40)K and (137)Cs radionuclides in the soil and the corresponding tea leaves of a large tea plantation were measured using high purity germanium (HPGe) γ-ray spectrometry. Different layers of soil and fresh tea leaf samples were collected from the Udalia Tea Estate (UTE) in the Fatickchari area of Chittagong, Bangladesh. The mean concentrations (in Bq/kg) of radionuclides in the studied soil samples were found to be 34 ± 9 to 45 ± 3 for (226)Ra, 50 ± 13 to 63 ± 5 for (232)Th, 245 ± 30 to 635 ± 35 for (40)K and 3 ± 1 to 10 ± 1 for (137)Cs, while the respective values in the corresponding tea leaf samples were 3.6 ± 0.7 to 5.7 ± 1.0, 2.4 ± 0.5 to 5.8 ± 0.9, 132 ± 25 to 258 ± 29 and <0.4. The mean transfer factors for (226)Ra, (232)Th and (40)K from soil to tea leaves were calculated to be 0.12, 0.08 and 0.46, respectively, the complete range being 1.1 × 10(−2) to 1.0, in accordance with IAEA values. Additionally, the most popularly consumed tea brands available in the Bangladeshi market were also analyzed and, with the exception of (40)K, were found to have similar concentrations to the fresh tea leaves collected from the UTE. The committed effective dose via the consumption of tea was estimated to be low in comparison with the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) reference ingestion dose limit of 290 μSv/y. Current indicative tea consumption of 4 g/day/person shows an insignificant radiological risk to public health, while cumulative dietary exposures may not be entirely negligible, because the UNSCEAR reference dose limit is derived from total dietary exposures. This study suggests a periodic monitoring of radiation levels in tea leaves in seeking to ensure the safety of human health.
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spelling pubmed-80668122021-04-25 Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace Absar, Nurul Abedin, Jainal Rahman, Md. Mashiur Miah, Moazzem Hossain Siddique, Naziba Kamal, Masud Chowdhury, Mantazul Islam Sulieman, Abdelmoneim Adam Mohamed Faruque, Mohammad Rashed Iqbal Khandaker, Mayeen Uddin Bradley, David Andrew Alsubaie, Abdullah Life (Basel) Article Considering the probable health risks due to radioactivity input via drinking tea, the concentrations of (226)Ra, (232)Th,(40)K and (137)Cs radionuclides in the soil and the corresponding tea leaves of a large tea plantation were measured using high purity germanium (HPGe) γ-ray spectrometry. Different layers of soil and fresh tea leaf samples were collected from the Udalia Tea Estate (UTE) in the Fatickchari area of Chittagong, Bangladesh. The mean concentrations (in Bq/kg) of radionuclides in the studied soil samples were found to be 34 ± 9 to 45 ± 3 for (226)Ra, 50 ± 13 to 63 ± 5 for (232)Th, 245 ± 30 to 635 ± 35 for (40)K and 3 ± 1 to 10 ± 1 for (137)Cs, while the respective values in the corresponding tea leaf samples were 3.6 ± 0.7 to 5.7 ± 1.0, 2.4 ± 0.5 to 5.8 ± 0.9, 132 ± 25 to 258 ± 29 and <0.4. The mean transfer factors for (226)Ra, (232)Th and (40)K from soil to tea leaves were calculated to be 0.12, 0.08 and 0.46, respectively, the complete range being 1.1 × 10(−2) to 1.0, in accordance with IAEA values. Additionally, the most popularly consumed tea brands available in the Bangladeshi market were also analyzed and, with the exception of (40)K, were found to have similar concentrations to the fresh tea leaves collected from the UTE. The committed effective dose via the consumption of tea was estimated to be low in comparison with the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) reference ingestion dose limit of 290 μSv/y. Current indicative tea consumption of 4 g/day/person shows an insignificant radiological risk to public health, while cumulative dietary exposures may not be entirely negligible, because the UNSCEAR reference dose limit is derived from total dietary exposures. This study suggests a periodic monitoring of radiation levels in tea leaves in seeking to ensure the safety of human health. MDPI 2021-03-27 /pmc/articles/PMC8066812/ /pubmed/33801699 http://dx.doi.org/10.3390/life11040282 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Absar, Nurul
Abedin, Jainal
Rahman, Md. Mashiur
Miah, Moazzem Hossain
Siddique, Naziba
Kamal, Masud
Chowdhury, Mantazul Islam
Sulieman, Abdelmoneim Adam Mohamed
Faruque, Mohammad Rashed Iqbal
Khandaker, Mayeen Uddin
Bradley, David Andrew
Alsubaie, Abdullah
Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace
title Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace
title_full Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace
title_fullStr Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace
title_full_unstemmed Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace
title_short Radionuclides Transfer from Soil to Tea Leaves and Estimation of Committed Effective Dose to the Bangladesh Populace
title_sort radionuclides transfer from soil to tea leaves and estimation of committed effective dose to the bangladesh populace
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8066812/
https://www.ncbi.nlm.nih.gov/pubmed/33801699
http://dx.doi.org/10.3390/life11040282
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