| 张燕,刘佳,刘宝英.福清核电周边成人居民膳食中放射性水平调查与分析[J].中华放射医学与防护杂志,2026,46(7):680-687.Zhang Yan,Liu Jia,Liu Baoying.Investigation on radioactivity levels in diet of adult residents around Fuqing nuclear power plant[J].Chin J Radiol Med Prot,2026,46(7):680-687 |
| 福清核电周边成人居民膳食中放射性水平调查与分析 |
| Investigation on radioactivity levels in diet of adult residents around Fuqing nuclear power plant |
| 投稿时间：2025-04-21 |
| DOI：10.3760/cma.j.cn112271-20250421-00147 |
| 中文关键词: 福清成人居民 膳食 放射性比活度 待积有效剂量 |
| 英文关键词:Fuqing adult residents Dietary Radioactivity Annual effective dose |
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| 中文摘要: |
| 目的 调查和分析福清核电站周边成人居民膳食中放射性水平。方法 采集福清当地种植、生产且居民主要食用的八大类88种共计90份食品,经预处理后使用高纯锗γ能谱仪分析样品中的131I、137Cs、134Cs、110Agm、60Co、58Co、226Ra和228Ra比活度;使用二-(2-乙基己基)磷酸酯萃取色层法分析样品中的90Sr比活度;使用氧化燃烧法分析样品中的3H和14C比活度,冠醚树脂分离法分析210Po和210Pb 比活度,并参考福建省居民主要食品消费量数据,评估福清成人居民膳食中放射性核素所致待积有效剂量。结果 90份食品中210Po、210Pb、90Sr和14C检出率为 100%,226Ra和228Ra检出率分别为85.56%和87.78%,137Cs检出率为32.22%,131I、58Co、60Co、134Cs、110Agm和3H均未检出。食品样品中137Cs、90Sr、14C、210Po、210Pb、226Ra和228Ra平均比活度分别为 (0.037±0.009)、(0.077±0.010)、(20.5±1.8)、(6.8±1.8)、(0.427±0.032)、(0.171±0.015)、(0.245±0.023)Bq/kg, 其中12份水产品210Po比活度>15 Bq/kg。福清成人居民膳食中放射性核素所致待积有效剂量为96.17 μSv,其中,水产品、粮谷和蔬菜类食品对本研究剂量贡献总额超过88.5%;天然放射性核素210Po和210Pb对剂量贡献总额超过72.3%;水产品210Po对剂量的贡献为31.52%,是剂量的主要来源。结论 膳食中天然放射性核素是福清核电周边成人居民膳食所致剂量的主要来源,所致的待积有效剂量低于国际原子能机构推荐的食品放射性剂量指导水平。 |
| 英文摘要: |
| Objective To investigate the radioactivity levels in the diet of adult residents around Fuqing Nuclear Power Plant.Methods 90 samples of 88 types were collected from eight broad categories of foods locally grown, produced, and primarily consumed by local residents. The samples, that have been through treatment, were analyzed for specific activities of 131I, 137Cs, 134Cs, 110mAg, 60Co, 58Co, 226Ra and 228Ra using high-purity germanium (HPGe) gamma spectrometer, for 90Sr using extraction chromatography using 2-(2-ethylhexyl) phosphate extraction, for 3H and 14C using furnace oxidation combustion method, and for 210Po and 210Pb using resin separation. The committed effective doses to adult residents in Fuqing from dietary intake were assessed by referencing data on per capita consumption of eight broad categories of food in Fujian. Results The detection rates of 210Po, 210Pb, 90Sr, and 14C in 90 food samples were 100%, 226Ra 85.56% and 228Ra 87.78%, and 137Cs 32.22%, respectively. None were detected of 131I, 58Co, 60Co, 134Cs, 110mAg, and 3H. The average specific activities in food samples were 137Cs (0.037±0.009), 90Sr (0.077±0.010), 14C (20.5±1.8), 210Po(6.8±1.8), 210Pb (0.427±0.032), 226Ra (0.171±0.015), and 228Ra (0.245±0.023) Bq/kg, respectively. Of 90 samples, the activity concentrations of 210Po in 12 samples of aquatic products were larger than 15 Bq/kg. The committed effective dose from dietary intake to adult residents was estimated to be 96.17 μSv. The radioactivity in aquatic products, grains, and vegetables contributed more than 88.5% of total dose in the present study, with 210Po and 210Pb accounting for more than 72.3% of the total of which 31.52% from 210Po in aquatic products. Conclusions Natural radionuclides were the main source of adult doses from the dietary intake in Fuqing. The annual effective dose to adult residents in Fuqing from dietary intake was below the IAEA-recommended guidance level for radioactivity in food. |
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