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Ding C, Yang Q, Zhao X, Xu L, Tang H, Liu Z, Zhai J, Zhang Q. A review of 210Pb and 210Po in moss. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2024; 276:107448. [PMID: 38749215 DOI: 10.1016/j.jenvrad.2024.107448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/06/2024] [Accepted: 05/10/2024] [Indexed: 05/24/2024]
Abstract
Among environment contaminants, 210Pb and 210Po have gained significant research attention due to their radioactive toxicity. Moss, with its exceptional adsorption capability for these radionuclides, serves as an indicator for environmental 210Pb and 210Po pollution. The paper reviews a total of 138 articles, summarizing the common methods and analytical results of 210Pb and 210Po research in moss. It elucidates the accumulation characteristics of 210Pb and 210Po in moss, discusses current research challenges, potential solutions, and future prospects in this field. Existing literature indicates limitations in common measurement techniques for 210Pb and 210Po in moss, characterized by high detection limits or lengthy sample processing. The concentration of 210Pb and 210Po within moss display substantial variations across different regions worldwide, ranging from
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Affiliation(s)
- Chenlu Ding
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, PR China
| | - Qiang Yang
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, PR China; Sichuan Cancer Hospital & Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 611731, PR China.
| | - Xue Zhao
- Chongqing Radiation Environment Supervision and Management Station, Chongqing, 400015, PR China
| | - Lipeng Xu
- Sichuan Cancer Hospital & Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, 611731, PR China
| | - Hui Tang
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, PR China; Sichuan Management and Monitoring Center Station of Radioactive Environment, Chengdu, 611139, PR China
| | - Zhengshang Liu
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, PR China
| | - Juan Zhai
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, PR China
| | - Qingxian Zhang
- College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, 610059, Sichuan, PR China
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Walsh S, Bond MJ, Guérin N, Blais JM, Rowan DJ. A sensitive method to determine 210Po and 210Pb in environmental samples by alpha spectrometry using CuS micro-precipitation. Sci Rep 2023; 13:19754. [PMID: 37957192 PMCID: PMC10643654 DOI: 10.1038/s41598-023-46230-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
A new sensitive method to determine polonium-210 (210Po) and lead-210 (210Pb) in a diversity of environmental samples was developed. For fresh and marine waters, Po was pre-concentrated using a titanium (III) hydroxide (Ti(OH)3) co-precipitation. Solid environmental samples were digested with nitric acid (HNO3) and hydrogen peroxide (H2O2). The alpha thin layer source was prepared using CuS micro-precipitation and 210Po was measured by alpha spectrometry. Lead-210 was left to decay for up to a year and indirectly measured via its progeny, 210Po. The chemical recoveries for 210Po and 210Pb were high, 90% and 97%, respectively, for a large variety of samples and a very low minimum detectable activity (MDA) was obtained. The method was validated using standardized solutions and certified reference materials.
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Affiliation(s)
- Stephanie Walsh
- Canadian Nuclear Laboratories, Chalk River Laboratories, Chalk River, ON, K0J 1J0, Canada.
| | - Matthew J Bond
- Canadian Nuclear Laboratories, Chalk River Laboratories, Chalk River, ON, K0J 1J0, Canada
| | - Nicolas Guérin
- Canadian Nuclear Laboratories, Chalk River Laboratories, Chalk River, ON, K0J 1J0, Canada
| | - Jules M Blais
- Department of Biology, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - David J Rowan
- Canadian Nuclear Laboratories, Chalk River Laboratories, Chalk River, ON, K0J 1J0, Canada
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Zhou L, Wang R, Ren H, Wang P, Cao Y. Detection of Polonium-210 in Environmental, Biological and Food Samples: A Review. Molecules 2023; 28:6268. [PMID: 37687097 PMCID: PMC10488615 DOI: 10.3390/molecules28176268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Ingestion of polonium-210 from environmental media and food can cause serious health hazards (e.g., gastrointestinal symptoms, tumours, etc.) and has been a public health concern worldwide since the 2006 poisoning of Agent Litvinenko 210Po in Russia. With the development of uranium mining and applications of nuclear technology in recent decades, the radioactive hazards posed by 210Po to living organisms and the environment have become increasingly prominent. In order to strengthen the monitoring of environmental 210Po and protect both the environment and human health, a series of explorations on the methods of 210Po determination have been ongoing by researchers across the globe. However, previous reviews have focused on individual sample types and have not provided a comprehensive account of environmental, food, and biological samples that are closely related to human health. In this work, the sources, health hazards, chemical purification, and detection methods of trace 210Po in different sample types are systematically reviewed. In particular, the advantages and disadvantages of various pretreatment methods are compared, and relevant domestic and international standards are integrated, which puts forward a new direction for the subsequent establishment of rapid, simple, and efficient measurement methods.
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Affiliation(s)
- Lei Zhou
- Department of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (L.Z.); (R.W.); (H.R.); (P.W.)
| | - Rui Wang
- Department of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (L.Z.); (R.W.); (H.R.); (P.W.)
- School of Public Health, Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Hong Ren
- Department of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (L.Z.); (R.W.); (H.R.); (P.W.)
| | - Peng Wang
- Department of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (L.Z.); (R.W.); (H.R.); (P.W.)
| | - Yiyao Cao
- Department of Occupational Health and Radiation Protection, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China; (L.Z.); (R.W.); (H.R.); (P.W.)
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Zhong Q, Puigcorbé V, Sanders C, Du J. Analysis of 210Po, 210Bi, and 210Pb in atmospheric and oceanic samples by simultaneously auto-plating 210Po and 210Bi onto a nickel disc. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 220-221:106301. [PMID: 32560889 DOI: 10.1016/j.jenvrad.2020.106301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/23/2019] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
210Po and 210Pb are commonly measured to study particle cycling and particulate organic carbon export (POC) flux from the upper ocean. 210Bi is a potential oceanographic tracer. However, no convenient and rapid analytical method for 210Bi has been developed in the marine environment due to its short half-life (5 days). The aims are to study factors influencing the simultaneous auto-plating of 210Po and 210Bi onto nickel disc and to develop an effective ship-board procedure for the rapid measurement of 210Po, 210Bi, and 210 Pb at sea. The results suggest that the optimal conditions for auto-deposition of 210Po and 210Bi were achieved by using a 25 mm diameter nickel disc in 60 mL acidic solution (pH = 0.5) for 16 h at 25 ± 1 °C. By adding 209Po and 207Bi as yield tracers to the sediments, recoveries of Po and Bi were >90%. If 210Po or 210Bi were in equilibrium with 210Pb, 210Po and 210Bi could also be potential proxies for 210Pb in sedimentary chronology. The overall recoveries of 209Po and 207Bi were >70% for rainwaters and >60% for seawater samples, respectively, which indicates this analytical procedure is also applicable to marine and atmospheric environments. This method allows the rapid measurement of 210Bi on a ship and help to obtain its vertical profile or spatial distribution in the marine environment within 1-2 days.
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Affiliation(s)
- Qiangqiang Zhong
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200241, China
| | - Viena Puigcorbé
- School of Science, Centre for Marine Ecosystems Research, Edith Cowan University, Joondalup, WA, 6027, Australia
| | - Christian Sanders
- National Marine Science Centre, Southern Cross University, Coffs Harbour, New South Wales, Australia
| | - Jinzhou Du
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai, 200241, China.
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Fan F, Liu H, Liang J, Sun H, Zhang J, Pan D, Zou Y. Rapid separation of Po-210 from Pb-210 based on the usage of a commercial Sr-Specific chromatographic resin. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2020; 211:106083. [PMID: 31707256 DOI: 10.1016/j.jenvrad.2019.106083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/16/2019] [Accepted: 10/27/2019] [Indexed: 06/10/2023]
Abstract
The efficient extraction of small quantities of 210Po is necessary for preparing 210Po standard reference materials. Herein, a commercially available strontrium-specific chromatographic resin (Sr spec resin) was used to rapidly and selectively extract 210Po from a 210Pb-210Bi-210Po mixture, and the distribution ratios of Pb, Bi, and 210Po on Sr spec resin were probed using batch experiments. In contrast to 210Pb and 210Bi, 210Po was retained on the Sr spec cartridge in 8 M HCl and was then effectively eluted by 0.1 M HNO3. The contents of 210Pb and 210Bi in the thus obtained 210Po solution were checked using a high purity germanium gamma-ray detector and the corresponding decay curve, respectively, and were found not to exceed 2%. Moreover, the 210Pb and 210Bi eluates could be used to regenerate 210Po by the same method after a certain time period. Therefore, the extracted 210Po solution was suitable for the preparation of the 210Po standard area source and 210Po standard reference materials.
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Affiliation(s)
- Fuyou Fan
- Division of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China.
| | - Haoran Liu
- Division of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China
| | - Juncheng Liang
- Division of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China
| | - Haowen Sun
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China
| | - Jian Zhang
- Division of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China.
| | - Duoqiang Pan
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China.
| | - Yu Zou
- Division of Ionizing Radiation, National Institute of Metrology, Beijing, 100029, China
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Thakur P, Ward AL. 210Po in the environment: insight into the naturally occurring polonium isotope. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06939-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lemons B, Khaing H, Ward A, Thakur P. A rapid method for the sequential separation of polonium, plutonium, americium and uranium in drinking water. Appl Radiat Isot 2018; 136:10-17. [PMID: 29448060 DOI: 10.1016/j.apradiso.2018.02.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 12/10/2017] [Accepted: 02/05/2018] [Indexed: 10/18/2022]
Abstract
A new sequential separation method for the determination of polonium and actinides (Pu, Am and U) in drinking water samples has been developed that can be used for emergency response or routine water analyses. For the first time, the application of TEVA chromatography column in the sequential separation of polonium and plutonium has been studied. This method utilizes a rapid Fe+3 co-precipitation step to remove matrix interferences, followed by plutonium oxidation state adjustment to Pu4+ and an incubation period of ~ 1 h at 50-60 °C to allow Po2+ to oxidize to Po4+. The polonium and plutonium were then separated on a TEVA column, while separation of americium from uranium was performed on a TRU column. After separation, polonium was micro-precipitated with copper sulfide (CuS), while actinides were micro co-precipitated using neodymium fluoride (NdF3) for counting by the alpha spectrometry. The method is simple, robust and can be performed quickly with excellent removal of interferences, high chemical recovery and very good alpha peak resolution. The efficiency and reliability of the procedures were tested by using spiked samples. The effect of several transition metals (Cu2+, Pb2+, Fe3+, Fe2+, and Ni2+) on the performance of this method were also assessed to evaluate the potential matrix effects. Studies indicate that presence of up to 25 mg of these cations in the samples had no adverse effect on the recovery or the resolution of polonium alpha peaks.
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Affiliation(s)
- B Lemons
- Carlsbad Environmental Monitoring & Research Center, 1400 University Drive, Carlsbad, NM 88220, United States
| | - H Khaing
- Carlsbad Environmental Monitoring & Research Center, 1400 University Drive, Carlsbad, NM 88220, United States
| | - A Ward
- US Department of Energy, Carlsbad Field Office, 4021 National Parks Highway, Carlsbad, NM 88220, United States
| | - P Thakur
- Carlsbad Environmental Monitoring & Research Center, 1400 University Drive, Carlsbad, NM 88220, United States.
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Ozden B, Vaasma T, Kiisk M, Tkaczyk AH. A modified method for the sequential determination of 210Po and 210Pb in Ca-rich material using liquid scintillation counting. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4984-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chen J, Rennie MD, Sadi B, Zhang W, St-Amant N. A study on the levels of radioactivity in fish samples from the experimental lakes area in Ontario, Canada. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2016; 153:222-230. [PMID: 26803403 DOI: 10.1016/j.jenvrad.2016.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 11/21/2015] [Accepted: 01/11/2016] [Indexed: 06/05/2023]
Abstract
To better understand background radiation levels in country foods, a total of 125 fish samples were collected from three lakes (Lake 226, Lake 302 and Lake 305) in the Experimental Lakes Area (ELA) in Ontario of Canada during the summer of 2014. Concentrations of naturally occurring radionuclides ((226)Ra, (210)Pb and (210)Po) as well as anthropogenic radionuclides ((134)Cs and (137)Cs) were measured. This study confirmed that (210)Po is the dominant contributor to radiation doses resulting from fish consumption. While concentrations of (210)Pb and (226)Ra were below conventional detection limits, (210)Po was measured in almost all fish samples collected from the ELA. The average concentration was about 1.5 Bq/kg fresh weight (fw). None of the fish samples analysed in this study contained any detectable levels of (134)Cs. An average (137)Cs level of 6.1 Bq/kg fw was observed in freshwater fishes harvested in the ELA, almost twice that of samples measured in the National Capital Region of Canada in 2014 and more than 20 times higher than the levels observed in marine fish harvested from the Canadian west coast in 2013 and 2014. However, it is important to note that the concentrations of (137)Cs in fish samples from these inland lakes are considered very low from a radiological protection perspective. The resulting radiation dose for people from fish consumption would be a very small fraction of the annual dose from exposure to natural background radiation in Canada. The results indicate that fishes from inland lakes do not pose a radiological health concern.
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Affiliation(s)
- Jing Chen
- Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada.
| | - Michael D Rennie
- International Institute for Sustainable Development, Experimental Lakes Area, 111 Lombard Avenue, Suite 325, Winnipeg, Canada; Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, Canada
| | - Baki Sadi
- Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
| | - Weihua Zhang
- Radiation Protection Bureau, Health Canada, 775 Brookfield Road, Ottawa, Canada
| | - Nadereh St-Amant
- Environmental Compliance and Laboratory Services Division, Canadian Nuclear Safety Commission, 280 Slater Street, Ottawa, Canada
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