| 吴应宇,卢秀芳,赵新春,等.2021—2023年防城港核电站周围海产品放射性核素水平调查[J].中华放射医学与防护杂志,2025,45(12):1217-1222.Wu Yingyu,Lu Xiufang,Zhao Xinchun,et al.Investigation of radioactivity levels in seafood around Fangchenggang Nuclear Power Plant from 2021 to 2023[J].Chin J Radiol Med Prot,2025,45(12):1217-1222 |
| 2021—2023年防城港核电站周围海产品放射性核素水平调查 |
| Investigation of radioactivity levels in seafood around Fangchenggang Nuclear Power Plant from 2021 to 2023 |
| 投稿时间：2024-10-29 |
| DOI：10.3760/cma.j.cn112271-20241029-00413 |
| 中文关键词: 防城港核电站 放射性核素 活度浓度 海产品 |
| 英文关键词:Fangchenggang Nuclear Power Plant Radionuclide Activity concentration Seafood |
| 基金项目:广西壮族自治区卫生健康委自筹经费科研课题项目(Z-A20240394、Z-A20240395);2024年广西壮族自治区疾病预防控制中心资助青年科技工作者科研课题 |
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| 中文摘要: |
| 目的 调查防城港核电站周围食品中的放射性核素水平及变化趋势。方法 于2021—2023年间，以防城港核电站为采样点中心设置采样的关注地区及对照地区，在北海市、钦州市、防城港市的周边海域采集鱼、虾、蟹、贝类等海产品样本。采用γ能谱法分析海产品中放射性核素137Cs、134Cs、110Agm、58Co、60Co、228Ra、226Ra、40K、238U、131I的含量，采用磷酸酯萃取色层法分析海产品中核素90Sr的含量。采用Kruskal-Wallis检验方法进行统计学分析。结果 关注地区及对照地区共监测37份海产品样本，其中检出238U、228Ra、226Ra、40K、137Cs和90Sr的平均活度浓度分别为(0.38±0.21)、(2.6±3.1)、(0.44±0.50)、(61±22)、(0.016±0.017)和(0.04 ±0.03)Bq/kg(鲜重)，其余核素测量结果均低于探测下限。统计检验显示，不同地区的放射性核素水平差异无统计学意义(P>0.05)，不同种类海产品中核素137Cs、134Cs、110Agm、58Co、60Co、131I、228Ra、226Ra、40K、90Sr的放射性水平差异有统计学意义(H=9.83、8.26、9.73、9.22、11.41、9.62、21.10、17.28、19.39、16.95，P < 0.05)，不同年份的放射性核素水平差异无统计学意义(P>0.05)。结论 防城港核电站周边海产品中检出的238U、228Ra、226Ra、40K、137Cs和90Sr等放射性核素活度浓度均处于环境本底水平。 |
| 英文摘要: |
| Objective To investigate the levels and trends of radioactivity in seafood around the Fangchenggang Nuclear Power Plant (FNPP).Methods From 2021 to 2023, a monitored area and a control area were set up with the FNPP as the central sampling point to collect the seafood samples such as fish, shrimp, crabs, and shellfish from the surrounding sea areas of Beihai city, Qinzhou city, and Fangchenggang city. The gamma spectrometry was used to analyze the activity concentrations of 137Cs, 134Cs, 110Agm, 58Co, 60Co, 228Ra, 226Ra, 40K, 238U, 131I in seafood and the phosphate extraction chromatography was employed to analyze the activity concentration of 90Sr in seafood.Results A total of 37 seafood samples were monitored, with the average activity concentrations (mean ± standard deviation) of 238U, 228Ra, 226Ra, 40K, 137Cs, and 90Sr being (0.38±0.21), (2.6±3.1), (0.44±0.50), (61±22), (0.016±0.017), and (0.04 ±0.03) Bq/kg(fresh weight), respectively. The measuring result of remaining radionuclides were shown to be lower their respective detectable lower limits. Statistical tests indicated that there were no statistically significant differences in radioactivity levels across different regions (P > 0.05). However, the radioactivity levels of 137Cs, 134Cs, 110Agm, 58Co, 60Co, 131I, 228Ra, 226Ra, 40K, and 90Sr in varied of seafoods showed statistically significant differences (H = 9.83, 8.26, 9.73, 9.22, 11.41, 9.62, 21.10, 17.28, 19.39, 16.95, P < 0.05). Additionally, no statistically significant differences were observed in radioactivity levels between different years (P > 0.05).Conclusions The activity concentrations of 238U, 228Ra, 226Ra, 40K, 137Cs, and 90Sr measured in seafood around the FNPP are at the environmental background levels. |
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