| 李则书,周强,拓飞,等.福建兴化湾野生和养殖海产品中天然和人工放射性核素137Cs活度浓度及剂量评估[J].中华放射医学与防护杂志,2025,45(12):1169-1175.Li Zeshu,Zhou Qiang,Tuo Fei,et al.Dose estimations based on measured avtivity concentrations of natural and artificial radionuclides in farmed and wild marine products from Xinghua Bay in Fujian province[J].Chin J Radiol Med Prot,2025,45(12):1169-1175 |
| 福建兴化湾野生和养殖海产品中天然和人工放射性核素137Cs活度浓度及剂量评估 |
| Dose estimations based on measured avtivity concentrations of natural and artificial radionuclides in farmed and wild marine products from Xinghua Bay in Fujian province |
| 投稿时间：2024-10-02 |
| DOI：10.3760/cma.j.cn112271-20241002-00391 |
| 中文关键词: 海产品 γ谱仪 放射性核素 剂量评估 |
| 英文关键词:Marine products Gamma spectrometry Radionuclides Dose evaluation |
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| 中文摘要: |
| 目的 对福建兴化湾养殖和野生海产品中天然放射性核素226Ra、228Ra、232Th、40K和人工放射性核素137Cs活度浓度水平及其所致成人待积有效剂量进行评估。方法 2023年3月至11月，在福建兴化湾采集鱼类、虾类、藻类和贝类4种海产品，共计11份样品，将采集的海产品冷冻干燥预处理后，应用γ能谱测量方法对其进行测量，并依据国际放射防护委员会(ICRP)119号报告给出的剂量转换因子、海产品年消费量及其天然和人工放射性活度浓度水平，评估食入所致成人的待积有效剂量。结果 兴化湾海产品中天然放射性核素226Ra、228Ra、232Th、40K和人工放射性核素137Cs活度浓度水平与国内外文献报道的水平一致，所致成人待积有效剂量为157.45 μSv，其中228Ra和40K剂量贡献最大，分别占总剂量的45.8%和46.0%。结论 根据福建兴化湾海产品中天然和人工放射性核素的活度浓度水平估算的待积有效剂量低于联合国原子辐射效应科学委员会(UNSCEAR)2000报告和国际原子能机构114号安全报告报道的食入放射性核素所致的待积有效剂量，食入兴化湾海产品所致人体的辐射危害可以忽略。 |
| 英文摘要: |
| Objective To estimate the committed effective dose to adutls based on the measured activity concentrations of natural radionuclides 226Ra, 228Ra, 232Th, 40K and artificial radionuclide 137Cs in both farmed and wild marine products colledted from Xinghua Bay, Fujian province.Methods A total of 11 seafood samples, including fish, shrimp, algae, and shellfish, were collected from Xinghua Bay in Fujian province from March to November 2023. The collected samples were pre-treated through forzen-drying and then measured by gamma spectrometry for radioactivity concentrations. The committed effective dose to adults via ingestion pathway was estimated by the dose conversion factors recommended in ICRP Publication 119 on the basis of the annual consumption of seafoods and the measured activity concentrations.Results The levels of measured activity concentrations of 226Ra, 228Ra, 232Th, 40K and 137Cs in seafood from Xinghua Bay were consistent with the values reported in domestic and international literature. The committed effective dose to adults was 157.45 μSv. 228Ra and 40K contributed the largest dose fractions, about 45.8% and 46.0% of the total doses, respectively.Conclusions The estimated committed effective dose to adults via ingestion of seafood producted in Xinghua Bay, based on the measured activity concentrations of natural and artificial radionuclides, is lower than the value reported in the UNSCEAR 2000 Report and the IAEA Safety Reports Series No. 114. Therefore, the radiation hazards to adults through consuming seafood from Xinghua Bay is negligible. |
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