| 郑琪珊,刘佳,刘萌萌,等.2022—2023年福州市城镇居民膳食中210Po所致待积有效剂量估算[J].中华放射医学与防护杂志,2025,45(12):1200-1204.Zheng Qishan,Liu Jia,Liu Mengmeng,et al.Assessment of committed effective dose of 210Po in the diet of resident in Fuzhou in 2022-2023[J].Chin J Radiol Med Prot,2025,45(12):1200-1204 |
| 2022—2023年福州市城镇居民膳食中210Po所致待积有效剂量估算 |
| Assessment of committed effective dose of 210Po in the diet of resident in Fuzhou in 2022-2023 |
| 投稿时间：2024-09-18 |
| DOI：10.3760/cma.j.cn112271-20240918-00354 |
| 中文关键词: 待积有效剂量 膳食 210Po 食品 α能谱仪 |
| 英文关键词:Committed effective dose Diet 210Po Food α spectrometer |
| 基金项目:福建省卫生健康科技计划项目(2020QNA028) |
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| 中文摘要: |
| 目的 通过对福州市城镇居民膳食中210Po的活度水平分析，估算因膳食中210Po所致内照射剂量。方法 参考总膳食研究食品清单，在福州市中大型超市采购城镇居民日常食用的7个食品组(粮食类、肉类、蛋类、乳类、水产类、水果类和蔬菜类)共120份食品，使用银片自沉积-α能谱法测量食品中210Po的活度浓度水平，并进行内照射剂量估算。结果 福州市城镇居民膳食中不同食品组中210Po的活度浓度范围为探测下限(DLL)~ 48.816 Bq/kg，年摄入210Po总量所致的待积有效剂量估算结果为437.13 μSv，其中水产类的剂量贡献占比最大，达86.93 %。结论 福州市城镇居民每年因食入210Po所致的待积有效剂量低于国际原子能机构推荐的食入食品所致剂量参考水平。 |
| 英文摘要: |
| Objective To estimate the internal doses to the local residents due to ingestion of 210Po by determining the activity concentrations of 210Po in the diets of the residents of Fuzhou.Methods With reference to the food list of the total diet study, a total of 120 food samples were collected from 7 groups of foods consumed daily by the residents from medium and large-sized supermarkets in Fuzhou, encompassing grains, meat, eggs, milk, aquatic products, fruits and vegetables. The activity concentration of 210Po in foods was measured using alpha spectrometry based on the method of silver disc-spontaneous deposition. And then the internal dose was estimated.Results The activity concentrations of 210Po in different food groups in the diets of Fuzhou residents ranged from detection lower limit(DLL) to 48.816 Bq/kg. The committed effective dose from 210Po was estimated to be 437.13 μSv, with the aquatic products contributing the largest dose, accounting for 86.93%.Conclusions The committed effective dose to the Fuzhou residents due to ingestion was lower than the IAEA reference value. |
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