Characteristics and Radiological Risk Assessment of 210Po in Two Organs of Asian Overbite Clam (Potamocorbula laevis), Asian Hard Clam (Meretrix lyrata) and Suminoe Oyster (Crassostrea rivularis) in Coastal Region of Hung Yen Province
Main Article Content
Abstract
This study evaluated the distribution, accumulation potential, and radiological risk of polonium-210 (210Po) in edible tissues (muscle and hepatopancreas) of three bivalve collected in the coastal area of Hung Yen, Vietnam (Asian hard clam (Meretrix lyrata), Suminoe oyster (Crassostrea rivularis), and Asian overbite clam (Potamocorbula laevis)). The results showed that 210Po activity in hepatopancreas was significantly higher than that in muscle tissue. The highest mean value in hepatopancreas was recorded in Asian overbite clam (295 mBq/g), followed by Oyster (80.0 mBq/g) and Asian hard clam (50.8 mBq/g). In muscle tissue, the mean 210Po activity was highest in oysters (22.8 mBq/g), followed by Asian overbite clam (22.5 mBq/g) and lowest in Asian hard clam (17.3 mBq/g). The bioaccumulation factor (CF) calculated from water samples showed that the hepatopancreas was the organ of high accumulation, with the highest mean value in Asian overbite clams (220), followed by oysters (59.7) and Asian hard clam (37.9). The annual effective dose (AED) from muscle tissue consumption ranged from 0.01 to 0.6 mSv/year, which in some cases may exceed the recommended level of 1 mSv/year for the public. For radiation ecology, the average total dose of 210Po in the three species (1.57-2.07 µGy/h) was lower than the ERICA reference threshold of 10 µGy/h, except for some samples of Asian overbite clams with peak values exceeding the threshold. Based on the biological characteristics and accumulation ability, the study suggests that Oysters are suitable indicator species for long-term 210Po radiation monitoring, while Mussels can be used to detect local pollution hotspots. This result provides important data for monitoring marine environmental radiation and orienting safe seafood consumption in Vietnam.
Keywords:
210Po, bivalve molluscs, radiological risk, bioaccumulation, Hung Yen, Vietnam.
References
[1] T. N. Nguyen, T. D. Nguyen, V. H. Duong, T. T. Nguyen, Distribution and Annual Committed Effective Dose Assessment of 210Po in Popular Marine Species at the Near-Shore Binh Thuan Province, Vietnam, Marine Pollution Bulletin,
Vol. 165, 2021, pp. 112073, https://doi.org/10.1016/j.marpolbul.2021.112073.
[2] V. H. Duong et al., Characteristics of 210Po in Asian Overbite Clam (Potamocorbula Laevis) from the Coastal Area at Thai Binh Province, Vietnam, Marine Pollution Bulletin, Vol. 194, 2023,
pp. 115425, https://doi.org/10.1016/j.marpolbul.2023.115425.
[3] S. Adibrata et al., Contamination of Heavy Metals (Pb and Cu) at Tin Sea Mining Field and Its Impact to Marine Tourism and Fisheries, Ilmu Kelautan: Indonesian Journal of Marine Sciences, Vol. 26, No. 2, 2021, https://doi.org/10.14710/ik.ijms.26.2.79-86.
[4] C. Tisdell et al., Marine Pollution and Tourism, in Resources & Environment in Asia's Marine Sector, Routledge, 2018, pp. 381-419.
[5] S. Ojha, U. Hapani, Impact of Commercial Activities on the Marine World, in Radiation Status in the Marine World, Springer Nature, 2025,
pp. 337-352, https://doi.org/10.1007/978-3-031-82403-6_11.
[6] R. Lindsay et al., Monitoring the Radon Flux from Gold-Mine Dumps by Gamma-Ray Mapping, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 213, 2004, pp. 775-778.
[7] W. Getaneh, T. Alemayehu, Metal Contamination of the Environment by Placer and Primary Gold Mining in the Adola Region of Southern Ethiopia, Environmental Geology, Vol. 50, No. 3, 2006,
pp. 339-352, https://doi.org/10.1007/s00254-006-0213-5.
[8] N. Stamatis et al., Sediment Pollution by Heavy Metals in the Strymonikos and Ierissos Gulfs, North Aegean Sea, Greece, Environmental Monitoring and Assessment, Vol. 80, No. 1, 2002, pp. 33-49, https://doi.org/10.1023/a:1020382011145.
[9] S. M. Sharifuzzaman et al., Heavy Metals Accumulation in Coastal Sediments, in Environmental Remediation Technologies for Metal-Contaminated Soils, Springer Japan, Tokyo, 2016, pp. 21-42, https://doi.org/10.1007/978-4-431-55759-3.
[10] C. Tsabaris, Sediment Pollution by Radionuclides and Toxic Metals in the Ierissos Gulf, North Aegean Sea, Greece, HNPS Proceedings, 2022.
[11] M. Belli, L. Indovina, The Response of Living Organisms to Low Radiation Environment and Its Implications in Radiation Protection, Frontiers in Public Health, Vol. 8, 2020, pp. 601711, https://doi.org/10.3389/fpubh.2020.601711.
[12] C. Cousins, D. L. Miller, G. Bernardi, M. M. Rehani, P. Schofield, E. Vañó, K. H. Sim, International Commission on Radiological Protection, ICRP Publication 120, 2011, pp. 1-125.
[13] D. Copplestone, S. Bielby, S. Jones, Impact Assessment of Ionising Radiation on Wildlife (No. EA-RD-Pub--128), Environment Agency, Lonngao (United Kingdom), 2001.
[14] P. Andersson et al., Protection of the Environment from Ionising Radiation in a Regulatory Context (PROTECT): Proposed Numerical Benchmark Values, Journal of Environmental Radioactivity, Vol. 100, No. 12, 2009, pp. 1100-1108, https://doi.org/10.1016/j.jenvrad.2009.05.010.
[15] M. S. Musthafa, R. Krishnamoorthy, Estimation of 210Po and 210Pb and Its Dose to Human Beings Due to Consumption of Marine Species of Ennore Creek, South India, Environmental Monitoring and Assessment, Vol. 184, No. 10, 2012, pp. 6253-6260,
https://doi.org/10.1007/s10661-011-2417-8.
[16] H. Suseno, W. R. Prihatiningsih, Monitoring 137Cs and 134Cs at Marine Coasts in Indonesia between 2011 and 2013, Marine Pollution Bulletin, Vol. 88, No. 1-2, 2014, pp. 319-324, https://doi.org/10.1016/j.marpolbul.2014.08.024.
[17] J. E. Brown et al., Radiation Doses to Aquatic Organisms from Natural Radionuclides, Journal of Radiological Protection, Vol. 24, No. 4A, 2004,
pp. A63,
https://doi.org/10.1088/0952-4746/24/4A/004.
[18] R. Gjelsvik et al., Polonium-210 and Other Radionuclides in Terrestrial, Freshwater and Brackish Environments - Results from the NKS Project GAPRAD, 2012.
[19] C. A. Aryanti, H. Suseno, W. R. Prihatiningsih, Potential Radiological Dose of 210Po to Several Marine Organisms in Coastal Area of Coal-Fired Power Plant Tanjung Awar-Awar, Tuban, ILMU KELAUTAN: Indonesian Journal of Marine Sciences, Vol. 27, No. 1, 2022, pp. 73-82, https://doi.org/10.14710/ik.ijms.27.1.73-82.
[20] S. W. Fowler, 210Po in the Marine Environment with Emphasis on Its Behaviour within the Biosphere, Journal of Environmental Radioactivity, Vol. 102, No. 5, 2011, pp. 448-461, https://doi.org/10.1016/j.jenvrad.2010.10.008.
[21] F. P. Carvalho, Polonium 210Po and Lead 210Pb in Marine Organisms and Their Transfer in Marine Food Chains, Journal of Environmental Radioactivity, Vol. 102, No. 5, 2011, pp. 462-472, https://doi.org/10.1016/j.jenvrad.2010.10.011.
[22] F. P. Carvalho, 210Po in Marine Organisms: A Wide Range of Natural Radiation Dose Domains, Radiation Protection Dosimetry, Vol. 24, No. 1-4, 1988, pp. 113-117, https://doi.org/10.1093/rpd/24.1-4.113.
[23] M. Betti et al., Results of the European Commission Marina II Study Part II - Effects of Discharges of Naturally Occurring Radioactive Material, Journal of Environmental Radioactivity,
[24] A. E. Khater, W. F. Bakr, Technologically Enhanced 210Pb and 210Po in Iron and Steel Industry, Journal of Environmental Radioactivity, Vol. 102, No. 5, 2011, pp. 527-530, https://doi.org/10.1016/j.jenvrad.2011.02.002.
[25] J. G. Orellana et al., Influence of Submarine Groundwater Discharge on 210Po and 210Pb Bioaccumulation in Fish Tissues, Journal of Environmental Radioactivity, Vol. 155, 2016,
pp. 46-54, https://doi.org/10.1016/j.jenvrad.2016.02.005.
[26] Y. Tateda et al., Fractionation of 210Po and 210Pb in Coastal Waters of the Nw Mediterranean Continental Margin, Continental Shelf Research, Vol. 23, No. 3-4, 2003, pp. 295-316, https://doi.org/10.1016/S0278-4343(02)00167-X.
[27] M. F. Khan, S. G. Wesley, Assessment of Health Safety from Ingestion of Natural Radionuclides in Seafoods from a Tropical Coast, India, Marine Pollution Bulletin, Vol. 62, No. 2, 2011,
pp. 399-404, https://doi.org/10.1016/j.marpolbul.2010.12.016.
[28] R. D. Cherry, L. V. Shannon, The Alpha Radioactivity of Marine Organisms, 1974.
[29] S. Mishra et al., Estimation of 210Po and Its Risk to Human Beings Due to Consumption of Marine Species at Mumbai, India, Chemosphere, Vol. 76, No. 3, 2009, pp. 402-406, https://doi.org/10.1016/j.chemosphere.2009.03.021.
[30] V. H. Duong et al., Distribution of 210Po in Body Organs of Bigeye Scad and Greater Lizardfish Species at Binh Thuan, Vietnam, Journal of Radioanalytical and Nuclear Chemistry, Vol. 331, No. 4, 2022, pp. 1635-1643, https://doi.org/10.1007/s10967-022-08237-w.
[31] V. H. Duong et al., High Accumulation of 210Po Concentration in Muscle Tissue and Hepatopancreas Gland Organs of Asian Green Mussel (Perna Viridis) at the Coastal area of Binh Thuan, Vietnam: Radiological Protection Perspectives, Marine Pollution Bulletin, Vol. 219, 2025, pp. 118348, https://doi.org/10.1016/j.marpolbul.2025.118348.
[32] S. Yamamoto et al., Effect of Solar Radiation on the Heat Load of Dairy Heifers, Australian Journal of Agricultural Research, Vol. 45, No. 8, 1994,
pp. 1741-1749, https://doi.org/10.1071/AR9941741.
[33] R. K. Hassona et al., Assessment of Committed Effective Dose Due to Consumption of Red Sea Coral Reef Fishes Collected from the Local Market (Sudan), Science of the Total Environment,
Vol. 393, No. 2-3, 2008, pp. 214-218, https://doi.org/10.1016/j.scitotenv.2007.12.014.
[34] M. Štrok, B. Smodiš, Levels of 210Po and 210Pb in Fish and Molluscs in Slovenia and the Related Dose Assessment to the Population, Chemosphere, Vol. 82, No. 7, 2011, pp. 970-976, https://doi.org/10.1016/j.chemosphere.2010.10.075.
[35] S. Aközcan, A. Uğur, Activity Levels of 210Po and 210Pb in Some Fish Species of the Izmir Bay (Aegean Sea), Marine Pollution Bulletin, Vol. 66, No. 1-2, 2013, pp. 234-238, https://doi.org/10.1016/j.marpolbul.2012.10.003.
[36] F. P. Carvalho, J. M. Oliveira, M. Malta, Accumulation and Tissue Partitioning of Polonium-210 in Fish from a Brackish Ecosystem, Journal of Environmental Radioactivity, Vol. 167, 2017, pp. 148-154, https://doi.org/10.1016/j.jenvrad.2010.10.011.
[37] P. Bustamante et al., Variation of 210-polonium in the Cephalopod Community from the Bay of Biscay, North-East Atlantic, Journal of Environmental Radioactivity, Vol. 268, 2023,
pp. 107265, https://doi.org/10.1016/j.jenvrad.2023.107265.
[38] E. D. Goldberg, K. K. Bertine, Beyond the Mussel Watch—New Directions for Monitoring Marine Pollution, Science of the Total Environment,
Vol. 247, No. 2-3, 2000, pp. 165-174,
https://doi.org/10.1016/S0048-9697(99)00488-X.
[39] I. Monirith et al., Asia-Pacific Mussel Watch: Monitoring Contamination of Persistent Organochlorine Compounds in Coastal Waters of Asian Countries, Marine Pollution Bulletin,
Vol. 46, No. 3, 2003, pp. 281-300, https://doi.org/10.1016/S0025-326X(02)00400-9.
[40] M. P. Lim, C. A. R. Mohamed, Radioactivity of 210Po in Green Mussels (Perna Viridis) at the West Coast of Johore Straits, Malaysia, Malaysian Journal of Analytical Sciences, Vol. 23, No. 6, 2019, pp. 980-990.
[41] M. F. Khan et al., Polonium-210 in Marine Mussels (Bivalve Molluscs) Inhabiting the Southern Coast of India, Journal of Environmental Radioactivity, Vol. 138, 2014, pp. 410-416, https://doi.org/10.1016/j.jenvrad.2014.06.023
[42] M. S. Hameed et al., Study on the Bioaccumulation of Polonium-210 and Lead-210 in the Abiotic and Biotic Components of Palk Strait, South East Coast of India, in 11th International Congress of the International Radiological Protection Association, Madrid, Spain, 2004, pp. 111-115.
[43] M. Makmur et al., Baseline Concentration of Polonium-210 210Po in Several Biota from Jakarta Bay, IOP Conf. Ser.: Earth Environ. Sci., Vol. 429, No. 1, 2020, pp. 012061.
[44] V. Venugopal, K. Gopakumar, Shellfish: Nutritive Value, Health Benefits, and Consumer Safety, Comprehensive Reviews in Food Science and Food Safety, Vol. 16, No. 6, 2017, pp. 1219-1242.
[45] H. D. Van, Assessment of the Annual Committed Effective Dose Due to the 210Po Ingestion from Selected Sea-Food Species in Vietnam, Chemosphere, Vol. 252, 2020, pp. 126519, https://doi.org/10.1016/j.chemosphere.2020.126519.
[46] TCVN 6663-3:2016 (ISO 5667-3:2012), Water Quality - Sampling - Part 3: Preservation and Handling of Water Samples (in Vietnamese).
[47] TCVN 6663-19:2015 (ISO 5667-19:2004), Water Quality - Sampling - Part 19: Guidance on Sampling of Marine Sediments (in Vietnamese).
[48] B. Skwarzec, Radiochemical Methods for the Determination of Polonium, Radiolead, Uranium and Plutonium in Environmental Samples, Chemia Analityczna, Vol. 42, 1997, pp. 107-115.
[49] D. Pauly et al., Sea Around Us Concepts, Design and Data (Seaaroundus.org), in Global Atlas of Marine Fisheries, Island Press, 2017, pp. 4-11.
[50] United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Sources and Effects of Ionizing Radiation, Annex B, Exposures from Natural Radiation Sources, UNSCEAR Report, New York, 2000, pp. 97-99.
[51] United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Annex B: Exposures from Natural Radiation Sources, UNSCEAR Report, New York, 2008.
[52] J. E. Brown et al., A New Version of the ERICA Tool to Facilitate Impact Assessments of Radioactivity on Wild Plants and Animals, Journal of Environmental Radioactivity, Vol. 153, 2016, pp. 141-148, https://doi.org/10.1016/j.jenvrad.2015.12.011.
[53] C. M. Larsson, An Overview of the ERICA Integrated Approach to the Assessment and Management of Environmental Risks from Ionising Contaminants, Journal of Environmental Radioactivity, Vol. 99, No. 9, 2008, pp. 1364-1370, https://doi.org/10.1016/j.jenvrad.2007.11.019.
[54] T. L. Yankovich et al., Whole-body to Tissue Concentration Ratios for Use in Biota Dose Assessments for Animals, Radiation and Environmental Biophysics, Vol. 49, No. 4, 2010, pp. 549-565, https://doi.org/10.1007/s00411-010-0323-z.
[55] J. P. Durand, F. P. Carvalho, J. M. Oliveira, Polonium 210Po Accumulation in Marine Organisms from the French Polynesian Marine Environment, Journal of Environmental Radioactivity, Vol. 45, 1999, pp. 273-285, https://doi.org/10.1016/j.jenvrad.2010.10.011.
[56] J. P. Durand, F. P. Carvalho, J. M. Oliveira, Metabolism and Distribution of Polonium-210 in Marine Fish: A Review, Journal of Environmental Radioactivity, Vol. 61, 2002, pp. 273-286.
[57] F. O. Hoffman et al., Biological Significance of Polonium-210 in Fish, Health Physics, Vol. 27,
No. 6, 1974, pp. 645-650.
[58] R. D. Cherry, M. Heyraud, Polonium-210 and Lead-210 in Marine Organisms: Allometric Relationships and Their Significance, in Radionuclides in the Study of Marine Processes, Elsevier Applied Science, London and New York, 1991, pp. 309-318.
[59] T. P. Ryan et al., 210Po in Mytilus edulis in the Irish Marine Environment, Journal of Environmental Radioactivity, Vol. 43, No. 3, 1999, pp. 325-342,
https://doi.org/10.1016/S0265-931X(98)00062-9.
[60] T. K. Parmar et al., Bioindicators: the Natural Indicator of Environmental Pollution, Frontiers in Life Science, Vol. 9, No. 2, 2016, pp. 110-118, https://doi.org/10.1080/21553769.2016.1162753.
[61] Y. G. Han et al., A Study of Bioindicator Selection for Long-Term Ecological Monitoring, Journal of Ecology and Environment, Vol. 38, No. 1, 2015, pp. 119-122, https://doi.org/10.5141/ecoenv.2015.013.
[62] N. Beresford et al., D-ERICA: An Integrated Approach to the Assessment and Management of Environmental Risk from Ionising Radiation, Description of Purpose, Methodology and Application, 2007.
Vol. 165, 2021, pp. 112073, https://doi.org/10.1016/j.marpolbul.2021.112073.
[2] V. H. Duong et al., Characteristics of 210Po in Asian Overbite Clam (Potamocorbula Laevis) from the Coastal Area at Thai Binh Province, Vietnam, Marine Pollution Bulletin, Vol. 194, 2023,
pp. 115425, https://doi.org/10.1016/j.marpolbul.2023.115425.
[3] S. Adibrata et al., Contamination of Heavy Metals (Pb and Cu) at Tin Sea Mining Field and Its Impact to Marine Tourism and Fisheries, Ilmu Kelautan: Indonesian Journal of Marine Sciences, Vol. 26, No. 2, 2021, https://doi.org/10.14710/ik.ijms.26.2.79-86.
[4] C. Tisdell et al., Marine Pollution and Tourism, in Resources & Environment in Asia's Marine Sector, Routledge, 2018, pp. 381-419.
[5] S. Ojha, U. Hapani, Impact of Commercial Activities on the Marine World, in Radiation Status in the Marine World, Springer Nature, 2025,
pp. 337-352, https://doi.org/10.1007/978-3-031-82403-6_11.
[6] R. Lindsay et al., Monitoring the Radon Flux from Gold-Mine Dumps by Gamma-Ray Mapping, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 213, 2004, pp. 775-778.
[7] W. Getaneh, T. Alemayehu, Metal Contamination of the Environment by Placer and Primary Gold Mining in the Adola Region of Southern Ethiopia, Environmental Geology, Vol. 50, No. 3, 2006,
pp. 339-352, https://doi.org/10.1007/s00254-006-0213-5.
[8] N. Stamatis et al., Sediment Pollution by Heavy Metals in the Strymonikos and Ierissos Gulfs, North Aegean Sea, Greece, Environmental Monitoring and Assessment, Vol. 80, No. 1, 2002, pp. 33-49, https://doi.org/10.1023/a:1020382011145.
[9] S. M. Sharifuzzaman et al., Heavy Metals Accumulation in Coastal Sediments, in Environmental Remediation Technologies for Metal-Contaminated Soils, Springer Japan, Tokyo, 2016, pp. 21-42, https://doi.org/10.1007/978-4-431-55759-3.
[10] C. Tsabaris, Sediment Pollution by Radionuclides and Toxic Metals in the Ierissos Gulf, North Aegean Sea, Greece, HNPS Proceedings, 2022.
[11] M. Belli, L. Indovina, The Response of Living Organisms to Low Radiation Environment and Its Implications in Radiation Protection, Frontiers in Public Health, Vol. 8, 2020, pp. 601711, https://doi.org/10.3389/fpubh.2020.601711.
[12] C. Cousins, D. L. Miller, G. Bernardi, M. M. Rehani, P. Schofield, E. Vañó, K. H. Sim, International Commission on Radiological Protection, ICRP Publication 120, 2011, pp. 1-125.
[13] D. Copplestone, S. Bielby, S. Jones, Impact Assessment of Ionising Radiation on Wildlife (No. EA-RD-Pub--128), Environment Agency, Lonngao (United Kingdom), 2001.
[14] P. Andersson et al., Protection of the Environment from Ionising Radiation in a Regulatory Context (PROTECT): Proposed Numerical Benchmark Values, Journal of Environmental Radioactivity, Vol. 100, No. 12, 2009, pp. 1100-1108, https://doi.org/10.1016/j.jenvrad.2009.05.010.
[15] M. S. Musthafa, R. Krishnamoorthy, Estimation of 210Po and 210Pb and Its Dose to Human Beings Due to Consumption of Marine Species of Ennore Creek, South India, Environmental Monitoring and Assessment, Vol. 184, No. 10, 2012, pp. 6253-6260,
https://doi.org/10.1007/s10661-011-2417-8.
[16] H. Suseno, W. R. Prihatiningsih, Monitoring 137Cs and 134Cs at Marine Coasts in Indonesia between 2011 and 2013, Marine Pollution Bulletin, Vol. 88, No. 1-2, 2014, pp. 319-324, https://doi.org/10.1016/j.marpolbul.2014.08.024.
[17] J. E. Brown et al., Radiation Doses to Aquatic Organisms from Natural Radionuclides, Journal of Radiological Protection, Vol. 24, No. 4A, 2004,
pp. A63,
https://doi.org/10.1088/0952-4746/24/4A/004.
[18] R. Gjelsvik et al., Polonium-210 and Other Radionuclides in Terrestrial, Freshwater and Brackish Environments - Results from the NKS Project GAPRAD, 2012.
[19] C. A. Aryanti, H. Suseno, W. R. Prihatiningsih, Potential Radiological Dose of 210Po to Several Marine Organisms in Coastal Area of Coal-Fired Power Plant Tanjung Awar-Awar, Tuban, ILMU KELAUTAN: Indonesian Journal of Marine Sciences, Vol. 27, No. 1, 2022, pp. 73-82, https://doi.org/10.14710/ik.ijms.27.1.73-82.
[20] S. W. Fowler, 210Po in the Marine Environment with Emphasis on Its Behaviour within the Biosphere, Journal of Environmental Radioactivity, Vol. 102, No. 5, 2011, pp. 448-461, https://doi.org/10.1016/j.jenvrad.2010.10.008.
[21] F. P. Carvalho, Polonium 210Po and Lead 210Pb in Marine Organisms and Their Transfer in Marine Food Chains, Journal of Environmental Radioactivity, Vol. 102, No. 5, 2011, pp. 462-472, https://doi.org/10.1016/j.jenvrad.2010.10.011.
[22] F. P. Carvalho, 210Po in Marine Organisms: A Wide Range of Natural Radiation Dose Domains, Radiation Protection Dosimetry, Vol. 24, No. 1-4, 1988, pp. 113-117, https://doi.org/10.1093/rpd/24.1-4.113.
[23] M. Betti et al., Results of the European Commission Marina II Study Part II - Effects of Discharges of Naturally Occurring Radioactive Material, Journal of Environmental Radioactivity,
[24] A. E. Khater, W. F. Bakr, Technologically Enhanced 210Pb and 210Po in Iron and Steel Industry, Journal of Environmental Radioactivity, Vol. 102, No. 5, 2011, pp. 527-530, https://doi.org/10.1016/j.jenvrad.2011.02.002.
[25] J. G. Orellana et al., Influence of Submarine Groundwater Discharge on 210Po and 210Pb Bioaccumulation in Fish Tissues, Journal of Environmental Radioactivity, Vol. 155, 2016,
pp. 46-54, https://doi.org/10.1016/j.jenvrad.2016.02.005.
[26] Y. Tateda et al., Fractionation of 210Po and 210Pb in Coastal Waters of the Nw Mediterranean Continental Margin, Continental Shelf Research, Vol. 23, No. 3-4, 2003, pp. 295-316, https://doi.org/10.1016/S0278-4343(02)00167-X.
[27] M. F. Khan, S. G. Wesley, Assessment of Health Safety from Ingestion of Natural Radionuclides in Seafoods from a Tropical Coast, India, Marine Pollution Bulletin, Vol. 62, No. 2, 2011,
pp. 399-404, https://doi.org/10.1016/j.marpolbul.2010.12.016.
[28] R. D. Cherry, L. V. Shannon, The Alpha Radioactivity of Marine Organisms, 1974.
[29] S. Mishra et al., Estimation of 210Po and Its Risk to Human Beings Due to Consumption of Marine Species at Mumbai, India, Chemosphere, Vol. 76, No. 3, 2009, pp. 402-406, https://doi.org/10.1016/j.chemosphere.2009.03.021.
[30] V. H. Duong et al., Distribution of 210Po in Body Organs of Bigeye Scad and Greater Lizardfish Species at Binh Thuan, Vietnam, Journal of Radioanalytical and Nuclear Chemistry, Vol. 331, No. 4, 2022, pp. 1635-1643, https://doi.org/10.1007/s10967-022-08237-w.
[31] V. H. Duong et al., High Accumulation of 210Po Concentration in Muscle Tissue and Hepatopancreas Gland Organs of Asian Green Mussel (Perna Viridis) at the Coastal area of Binh Thuan, Vietnam: Radiological Protection Perspectives, Marine Pollution Bulletin, Vol. 219, 2025, pp. 118348, https://doi.org/10.1016/j.marpolbul.2025.118348.
[32] S. Yamamoto et al., Effect of Solar Radiation on the Heat Load of Dairy Heifers, Australian Journal of Agricultural Research, Vol. 45, No. 8, 1994,
pp. 1741-1749, https://doi.org/10.1071/AR9941741.
[33] R. K. Hassona et al., Assessment of Committed Effective Dose Due to Consumption of Red Sea Coral Reef Fishes Collected from the Local Market (Sudan), Science of the Total Environment,
Vol. 393, No. 2-3, 2008, pp. 214-218, https://doi.org/10.1016/j.scitotenv.2007.12.014.
[34] M. Štrok, B. Smodiš, Levels of 210Po and 210Pb in Fish and Molluscs in Slovenia and the Related Dose Assessment to the Population, Chemosphere, Vol. 82, No. 7, 2011, pp. 970-976, https://doi.org/10.1016/j.chemosphere.2010.10.075.
[35] S. Aközcan, A. Uğur, Activity Levels of 210Po and 210Pb in Some Fish Species of the Izmir Bay (Aegean Sea), Marine Pollution Bulletin, Vol. 66, No. 1-2, 2013, pp. 234-238, https://doi.org/10.1016/j.marpolbul.2012.10.003.
[36] F. P. Carvalho, J. M. Oliveira, M. Malta, Accumulation and Tissue Partitioning of Polonium-210 in Fish from a Brackish Ecosystem, Journal of Environmental Radioactivity, Vol. 167, 2017, pp. 148-154, https://doi.org/10.1016/j.jenvrad.2010.10.011.
[37] P. Bustamante et al., Variation of 210-polonium in the Cephalopod Community from the Bay of Biscay, North-East Atlantic, Journal of Environmental Radioactivity, Vol. 268, 2023,
pp. 107265, https://doi.org/10.1016/j.jenvrad.2023.107265.
[38] E. D. Goldberg, K. K. Bertine, Beyond the Mussel Watch—New Directions for Monitoring Marine Pollution, Science of the Total Environment,
Vol. 247, No. 2-3, 2000, pp. 165-174,
https://doi.org/10.1016/S0048-9697(99)00488-X.
[39] I. Monirith et al., Asia-Pacific Mussel Watch: Monitoring Contamination of Persistent Organochlorine Compounds in Coastal Waters of Asian Countries, Marine Pollution Bulletin,
Vol. 46, No. 3, 2003, pp. 281-300, https://doi.org/10.1016/S0025-326X(02)00400-9.
[40] M. P. Lim, C. A. R. Mohamed, Radioactivity of 210Po in Green Mussels (Perna Viridis) at the West Coast of Johore Straits, Malaysia, Malaysian Journal of Analytical Sciences, Vol. 23, No. 6, 2019, pp. 980-990.
[41] M. F. Khan et al., Polonium-210 in Marine Mussels (Bivalve Molluscs) Inhabiting the Southern Coast of India, Journal of Environmental Radioactivity, Vol. 138, 2014, pp. 410-416, https://doi.org/10.1016/j.jenvrad.2014.06.023
[42] M. S. Hameed et al., Study on the Bioaccumulation of Polonium-210 and Lead-210 in the Abiotic and Biotic Components of Palk Strait, South East Coast of India, in 11th International Congress of the International Radiological Protection Association, Madrid, Spain, 2004, pp. 111-115.
[43] M. Makmur et al., Baseline Concentration of Polonium-210 210Po in Several Biota from Jakarta Bay, IOP Conf. Ser.: Earth Environ. Sci., Vol. 429, No. 1, 2020, pp. 012061.
[44] V. Venugopal, K. Gopakumar, Shellfish: Nutritive Value, Health Benefits, and Consumer Safety, Comprehensive Reviews in Food Science and Food Safety, Vol. 16, No. 6, 2017, pp. 1219-1242.
[45] H. D. Van, Assessment of the Annual Committed Effective Dose Due to the 210Po Ingestion from Selected Sea-Food Species in Vietnam, Chemosphere, Vol. 252, 2020, pp. 126519, https://doi.org/10.1016/j.chemosphere.2020.126519.
[46] TCVN 6663-3:2016 (ISO 5667-3:2012), Water Quality - Sampling - Part 3: Preservation and Handling of Water Samples (in Vietnamese).
[47] TCVN 6663-19:2015 (ISO 5667-19:2004), Water Quality - Sampling - Part 19: Guidance on Sampling of Marine Sediments (in Vietnamese).
[48] B. Skwarzec, Radiochemical Methods for the Determination of Polonium, Radiolead, Uranium and Plutonium in Environmental Samples, Chemia Analityczna, Vol. 42, 1997, pp. 107-115.
[49] D. Pauly et al., Sea Around Us Concepts, Design and Data (Seaaroundus.org), in Global Atlas of Marine Fisheries, Island Press, 2017, pp. 4-11.
[50] United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Sources and Effects of Ionizing Radiation, Annex B, Exposures from Natural Radiation Sources, UNSCEAR Report, New York, 2000, pp. 97-99.
[51] United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Annex B: Exposures from Natural Radiation Sources, UNSCEAR Report, New York, 2008.
[52] J. E. Brown et al., A New Version of the ERICA Tool to Facilitate Impact Assessments of Radioactivity on Wild Plants and Animals, Journal of Environmental Radioactivity, Vol. 153, 2016, pp. 141-148, https://doi.org/10.1016/j.jenvrad.2015.12.011.
[53] C. M. Larsson, An Overview of the ERICA Integrated Approach to the Assessment and Management of Environmental Risks from Ionising Contaminants, Journal of Environmental Radioactivity, Vol. 99, No. 9, 2008, pp. 1364-1370, https://doi.org/10.1016/j.jenvrad.2007.11.019.
[54] T. L. Yankovich et al., Whole-body to Tissue Concentration Ratios for Use in Biota Dose Assessments for Animals, Radiation and Environmental Biophysics, Vol. 49, No. 4, 2010, pp. 549-565, https://doi.org/10.1007/s00411-010-0323-z.
[55] J. P. Durand, F. P. Carvalho, J. M. Oliveira, Polonium 210Po Accumulation in Marine Organisms from the French Polynesian Marine Environment, Journal of Environmental Radioactivity, Vol. 45, 1999, pp. 273-285, https://doi.org/10.1016/j.jenvrad.2010.10.011.
[56] J. P. Durand, F. P. Carvalho, J. M. Oliveira, Metabolism and Distribution of Polonium-210 in Marine Fish: A Review, Journal of Environmental Radioactivity, Vol. 61, 2002, pp. 273-286.
[57] F. O. Hoffman et al., Biological Significance of Polonium-210 in Fish, Health Physics, Vol. 27,
No. 6, 1974, pp. 645-650.
[58] R. D. Cherry, M. Heyraud, Polonium-210 and Lead-210 in Marine Organisms: Allometric Relationships and Their Significance, in Radionuclides in the Study of Marine Processes, Elsevier Applied Science, London and New York, 1991, pp. 309-318.
[59] T. P. Ryan et al., 210Po in Mytilus edulis in the Irish Marine Environment, Journal of Environmental Radioactivity, Vol. 43, No. 3, 1999, pp. 325-342,
https://doi.org/10.1016/S0265-931X(98)00062-9.
[60] T. K. Parmar et al., Bioindicators: the Natural Indicator of Environmental Pollution, Frontiers in Life Science, Vol. 9, No. 2, 2016, pp. 110-118, https://doi.org/10.1080/21553769.2016.1162753.
[61] Y. G. Han et al., A Study of Bioindicator Selection for Long-Term Ecological Monitoring, Journal of Ecology and Environment, Vol. 38, No. 1, 2015, pp. 119-122, https://doi.org/10.5141/ecoenv.2015.013.
[62] N. Beresford et al., D-ERICA: An Integrated Approach to the Assessment and Management of Environmental Risk from Ionising Radiation, Description of Purpose, Methodology and Application, 2007.