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Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia

BACKGROUND: Po(210 )can be accumulated in various environmental materials, including marine organisms, and contributes to the dose of natural radiation in seafood. The concentration of this radionuclide in the marine environment can be influenced by the operation of a coal burning power plant but ex...

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Autores principales: Alam, Lubna, Mohamed, Che Abd Rahim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3125231/
https://www.ncbi.nlm.nih.gov/pubmed/21595985
http://dx.doi.org/10.1186/1476-069X-10-43
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author Alam, Lubna
Mohamed, Che Abd Rahim
author_facet Alam, Lubna
Mohamed, Che Abd Rahim
author_sort Alam, Lubna
collection PubMed
description BACKGROUND: Po(210 )can be accumulated in various environmental materials, including marine organisms, and contributes to the dose of natural radiation in seafood. The concentration of this radionuclide in the marine environment can be influenced by the operation of a coal burning power plant but existing studies regarding this issue are not well documented. Therefore, the aim of this study was to estimate the Po(210 )concentration level in marine organisms from the coastal area of Kapar, Malaysia which is very near to a coal burning power plant station and to assess its impact on seafood consumers. METHODS: Concentration of Po(210 )was determined in the edible muscle of seafood and water from the coastal area of Kapar, Malaysia using radiochemical separation and the Alpha Spectrometry technique. RESULTS: The activities of Po(210 )in the dissolved phase of water samples ranged between 0.51 ± 0.21 and 0.71 ± 0.24 mBql(-1 )whereas the particulate phase registered a range of 50.34 ± 11.40 to 72.07 ± 21.20 Bqkg(-1). The ranges of Po(210 )activities in the organism samples were 4.4 ± 0.12 to 6.4 ± 0.95 Bqkg(-1 )dry wt in fish (Arius maculatus), 45.7 ± 0.86 to 54.4 ± 1.58 Bqkg(-1 )dry wt in shrimp (Penaeus merguiensis) and 104.3 ± 3.44 to 293.8 ± 10.04 Bqkg(-1 )dry wt in cockle (Anadara granosa). The variation of Po(210 )in organisms is dependent on the mode of their life style, ambient water concentration and seasonal changes. The concentration factors calculated for fish and molluscs were higher than the recommended values by the IAEA. An assessment of daily intake and received dose due to the consumption of seafood was also carried out and found to be 2083.85 mBqday(-1)person(-1 )and 249.30 μSvyr(-1 )respectively. These values are comparatively higher than reported values in other countries. Moreover, the transformation of Po(210 )in the human body was calculated and revealed that a considerable amount of Po(210 )can be absorbed in the internal organs. The calculated values of life time mortality and morbidity cancer risks were 24.8 × 10(-4 )and 34 × 10(-4 )respectively which also exceeded the recommended limits set by the ICRP. CONCLUSIONS: The findings of this present study can be used to evaluate the safety dose uptake level of seafood as well as to monitor environmental health. However, as the calculated dose and cancer risks were found to cross the limit of safety, finding a realistic way to moderate the risk is imperative.
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spelling pubmed-31252312011-06-29 Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia Alam, Lubna Mohamed, Che Abd Rahim Environ Health Research BACKGROUND: Po(210 )can be accumulated in various environmental materials, including marine organisms, and contributes to the dose of natural radiation in seafood. The concentration of this radionuclide in the marine environment can be influenced by the operation of a coal burning power plant but existing studies regarding this issue are not well documented. Therefore, the aim of this study was to estimate the Po(210 )concentration level in marine organisms from the coastal area of Kapar, Malaysia which is very near to a coal burning power plant station and to assess its impact on seafood consumers. METHODS: Concentration of Po(210 )was determined in the edible muscle of seafood and water from the coastal area of Kapar, Malaysia using radiochemical separation and the Alpha Spectrometry technique. RESULTS: The activities of Po(210 )in the dissolved phase of water samples ranged between 0.51 ± 0.21 and 0.71 ± 0.24 mBql(-1 )whereas the particulate phase registered a range of 50.34 ± 11.40 to 72.07 ± 21.20 Bqkg(-1). The ranges of Po(210 )activities in the organism samples were 4.4 ± 0.12 to 6.4 ± 0.95 Bqkg(-1 )dry wt in fish (Arius maculatus), 45.7 ± 0.86 to 54.4 ± 1.58 Bqkg(-1 )dry wt in shrimp (Penaeus merguiensis) and 104.3 ± 3.44 to 293.8 ± 10.04 Bqkg(-1 )dry wt in cockle (Anadara granosa). The variation of Po(210 )in organisms is dependent on the mode of their life style, ambient water concentration and seasonal changes. The concentration factors calculated for fish and molluscs were higher than the recommended values by the IAEA. An assessment of daily intake and received dose due to the consumption of seafood was also carried out and found to be 2083.85 mBqday(-1)person(-1 )and 249.30 μSvyr(-1 )respectively. These values are comparatively higher than reported values in other countries. Moreover, the transformation of Po(210 )in the human body was calculated and revealed that a considerable amount of Po(210 )can be absorbed in the internal organs. The calculated values of life time mortality and morbidity cancer risks were 24.8 × 10(-4 )and 34 × 10(-4 )respectively which also exceeded the recommended limits set by the ICRP. CONCLUSIONS: The findings of this present study can be used to evaluate the safety dose uptake level of seafood as well as to monitor environmental health. However, as the calculated dose and cancer risks were found to cross the limit of safety, finding a realistic way to moderate the risk is imperative. BioMed Central 2011-05-20 /pmc/articles/PMC3125231/ /pubmed/21595985 http://dx.doi.org/10.1186/1476-069X-10-43 Text en Copyright ©2011 Alam and Mohamed; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Alam, Lubna
Mohamed, Che Abd Rahim
Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia
title Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia
title_full Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia
title_fullStr Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia
title_full_unstemmed Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia
title_short Natural radionuclide of Po(210 )in the edible seafood affected by coal-fired power plant industry in Kapar coastal area of Malaysia
title_sort natural radionuclide of po(210 )in the edible seafood affected by coal-fired power plant industry in kapar coastal area of malaysia
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3125231/
https://www.ncbi.nlm.nih.gov/pubmed/21595985
http://dx.doi.org/10.1186/1476-069X-10-43
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