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Ma X, Cao Y, Zheng T, Yu S, Zou H, Gong X, Cao Y, Ren H. Determination and human health risk assessment of TFWT, OBT and carbon-14 in seafood around Qinshan Nuclear Power Plant. Food Chem X 2024; 22:101243. [PMID: 38444554 PMCID: PMC10912440 DOI: 10.1016/j.fochx.2024.101243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/29/2024] [Accepted: 02/17/2024] [Indexed: 03/07/2024] Open
Abstract
This work aims to evaluate the effects of the operation of Qinshan nuclear Power Plant (QNPP) on tritium (3H) and carbon-14 (14C) levels in seafood and assess the health risks caused by seafood consumption. Five kinds of seafood, including marine fish, prawn, razor clam, crabs, and seaweed, were collected from QNPP and the sea around Hangzhou Bay. The activity concentrations of tissue free water tritium (TFWT), organically bound tritium (OBT) and 14C were determined, respectively, and the annual intake and annual effective dose (AED) were calculated. The results showed that the TFWT, OBT, and 14C activity concentrations of the seafood in the surrounding area of QNPP ranged from 2.00 to 74.75 Bq/L, <1.04 to 19.68 Bq/L and 0.09 to 0.17 Bq/g·C, respectively. The TFWT, OBT, and 14C activity concentrations of the seafood in Hangzhou Bay ranged from 1.36 to 10.55 Bq/L, 1.08 to 6.78 Bq/L and 0.07 to 0.13 Bq/g·C, respectively. The differences were not statistically significant. The total AED from 3H and 14C due to the seafood consumption for the residents in the surrounding of QNPP and Hangzhou Bay were 1.96 × 10-4 and 1.61 × 10-4 mSv/year, respectively. The results showed that the operation of QNPP had no obvious effect on 3H and 14C accumulation in seafood, and the dose burden of population was low.
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Affiliation(s)
- Xiaoxiang Ma
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
- School of Public Health, Suzhou Medical College, Soochow University, 215123, China
- South Zhejiang Institute of Radiation Medicine and Nuclear Technology, Wenzhou 325014, China
| | - Yiyao Cao
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Taotao Zheng
- Sanmen County Center for Disease Control and Prevention, Sanmen, Zhejiang 317100, China
| | - Shunfei Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Hua Zou
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Xinyu Gong
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
- School of Public Health, Suzhou Medical College, Soochow University, 215123, China
| | - Yi Cao
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
| | - Hong Ren
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China
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Feng B, Ibesich M, Hainz D, Waidhofer D, Veit-Öller M, Trunner C, Stummer T, Foster M, Nemetz M, Welch JM, Villa M, Sterba JH, Musilek A, Renz F, Steinhauser G. Development of a Novel Passive Monitoring Technique to Showcase the 3D Distribution of Tritiated Water (HTO) Vapor in Indoor Air of a Nuclear Facility. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:20024-20033. [PMID: 37964532 DOI: 10.1021/acs.est.3c05783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Tritiated water (HTO), a ubiquitous byproduct of the nuclear industry, is a radioactive contaminant of major concern for environmental authorities. Although understanding spatiotemporal heterogeneity of airborne HTO vapor holds great importance for radiological safety as well as diagnosing a reactor's status, comprehensive HTO distribution dynamics inside nuclear facilities has not been studied routinely yet due to a lack of appropriate monitoring techniques. For current systems, it is difficult to simultaneously achieve high representativeness, sensitivity, and spatial resolution. Here, we developed a passive monitoring scheme, including a newly designed passive sampler and a tailored analytical protocol for the first comprehensive 3D distribution characterization of HTO inside a nuclear reactor facility. The technique enables linear sampling in any environment at a one-day resolution and simultaneous preparation of hundreds of samples within 1 day. Validation experiments confirmed the method's good metrological properties and sensitivity to the HTO's spatial dynamics. The air in TU Wien's reactor hall exhibits a range of 3H concentrations from 75-946 mBq m-3 in the entire 3D matrix. The HTO release rate estimated by the mass-balance model (3199 ± 306 Bq h-1) matches the theoretical calculation (2947 ± 254 Bq h-1), suggesting evaporation as the dominant HTO source in the hall. The proposed method provides reliable and quality-controlled 3D monitoring at low cost, which can be adopted not only for HTO and may also inspire monitoring schemes of other indoor pollutants.
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Affiliation(s)
- Bin Feng
- Institute of Applied Synthetic Chemistry & TRIGA Center Atominstitut, TU Wien, 1060 Vienna, Austria
- Institute of Inorganic Chemistry, Leibniz Universität Hannover, 30167 Hannover, Germany
| | - Martin Ibesich
- Institute of Applied Synthetic Chemistry & TRIGA Center Atominstitut, TU Wien, 1060 Vienna, Austria
| | - Dieter Hainz
- TRIGA Center Atominstitut, TU Wien, 1020 Vienna, Austria
| | - Daniel Waidhofer
- Institute of Applied Synthetic Chemistry & TRIGA Center Atominstitut, TU Wien, 1060 Vienna, Austria
| | | | | | - Thomas Stummer
- TRIGA Center Atominstitut, TU Wien, 1020 Vienna, Austria
| | | | - Markus Nemetz
- TRIGA Center Atominstitut, TU Wien, 1020 Vienna, Austria
| | - Jan M Welch
- TRIGA Center Atominstitut, TU Wien, 1020 Vienna, Austria
| | - Mario Villa
- TRIGA Center Atominstitut, TU Wien, 1020 Vienna, Austria
| | | | | | - Franz Renz
- Institute of Inorganic Chemistry, Leibniz Universität Hannover, 30167 Hannover, Germany
| | - Georg Steinhauser
- Institute of Applied Synthetic Chemistry & TRIGA Center Atominstitut, TU Wien, 1060 Vienna, Austria
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Determination of tritium in large volume of seawater using electrolytic enrichment and LSC and its application for the East China Sea water. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-022-08752-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Feng B, Steinhauser G, Zhuo W, Li Z, Yao Y, Blenke T, Zhao C, Renz F, Chen B. Development and calibration of a modifiable passive sampler for monitoring atmospheric tritiated water vapor in different environments. ENVIRONMENT INTERNATIONAL 2022; 169:107505. [PMID: 36115249 DOI: 10.1016/j.envint.2022.107505] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Anthropogenic release of tritium from nuclear facilities is expected to increase significantly in the coming decades, which may cause radiation exposure to humans through the contamination of water and food chains. It is necessary and urgent to acquire detailed information about tritium in various environments for studying its behavior and assessing the potential radiation risk. In the atmosphere, although the passive sampling technique provides a low-cost and convenient way to characterize the dynamics of tritiated water vapor (HTO), a single, simple sampler configuration makes it difficult to collect sufficient and representative samples within the expected period from different environments. In this study, we systematically studied the impacts of sampler configurations on sampling performance and proposed a modifiable sampler design by scaling sampler geometry and adjusting absorbent to achieve different monitoring demands. The samplers were subsequently deployed at five sites in China and Germany for the field calibration and the measured results exhibited a good agreement between the adsorption process obtained in sites corrected with diffusion coefficient and the one calibrated in Shanghai. This suggests the feasibility of predicting sampling performance in the field based on known data. Finally, we developed a strategy for sampler modification and selection in different environments and demonstrated that using easily obtainable environmental data, our sampler can be optimized for any area without any time-consuming preliminary experiments. This work provides a scientific basis for establishing high-resolution atmospheric HTO database and expands the conventional empirical sampler design paradigm by demonstrating the feasibility of using quantitative indices for sampler performance customization.
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Affiliation(s)
- Bin Feng
- Institute of Radioecology and Radiation Protection, Leibniz Universität Hannover, 30419 Hannover, Germany; Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Georg Steinhauser
- Institute of Radioecology and Radiation Protection, Leibniz Universität Hannover, 30419 Hannover, Germany; TU Wien, Institute of Applied Synthetic Chemistry & TRIGA Center Atominstitut, 1060 Vienna, Austria
| | - Weihai Zhuo
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Zhiling Li
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Yupeng Yao
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China
| | - Tobias Blenke
- Institute of Radioecology and Radiation Protection, Leibniz Universität Hannover, 30419 Hannover, Germany
| | - Chao Zhao
- Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
| | - Franz Renz
- Institute of Inorganic Chemistry, Leibniz Universität Hannover, 30167 Hannover, Germany
| | - Bo Chen
- Institute of Radiation Medicine, Fudan University, Shanghai 200032, China.
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