| 俞顺飞,曹艺耀,宣志强,等.浙江省沿海地区海产品中137Cs的含量水平及其所致年待积有效剂量的评估[J].中华放射医学与防护杂志,2019,39(9):697-701.Yu Shunfei,Cao Yiyao,Xuan Zhiqiang,et al.Assessment of committed effective dose from ingestion of 137Cs in seafood from coastal areas of Zhejiang province[J].Chin J Radiol Med Prot,2019,39(9):697-701 |
| 浙江省沿海地区海产品中137Cs的含量水平及其所致年待积有效剂量的评估 |
| Assessment of committed effective dose from ingestion of 137Cs in seafood from coastal areas of Zhejiang province |
| 投稿时间：2019-06-14 |
| DOI：10.3760/cma.j.issn.0254-5098.2019.09.011 |
| 中文关键词: γ能谱仪 海产品 137Cs 年待积有效剂量 |
| 英文关键词:Gamma spectrometer Sea products 137Cs Annual committed effective dose |
| 基金项目:浙江省医药卫生科技计划基金项目（2015RCA004） |
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| 中文摘要: |
| 目的 调查浙江省沿海地区海产品中放射性核素137Cs的含量水平，估算不同类型地区人群因食入所致待积有效剂量。方法 在浙江省沿海设置3个有代表性的监测地区，选择本地出产且居民消费量大的海产品种类为监测对象，采用高纯锗（HPGe）γ能谱仪进行放射性核素137Cs的含量水平检测，检测结果结合浙江省居民膳食中海产品消费量的调查数据进行待积有效剂量估算。结果 浙江省沿海地区出产的海产品中，137Cs检出率35.3%（36/102），检出的比活度范围0.004~0.140 Bq/kg（鲜），海岛地区、沿海地区和内陆地区居民全人群1年内因食入海产品摄入放射性核素137Cs所致待积有效剂量分别为3.03×10-5、1.63×10-5、3.38×10-6 mSv，远远小于全球内照射所致待积有效剂量。结论 当前浙江省沿海出产的海产品中137Cs含量水平远低于国家标准限值，人群剂量负担轻微，不会对居民健康造成影响。 |
| 英文摘要: |
| Objective To investigate the contents of radionuclide 137Cs in seafood from coastal areas of Zhejiang province, and to estimate the annual committed effective dose to population in different regions from ingestion of 137Cs in seafood. Methods Three representative monitoring areas were set on the coastaline of Zhejiang province, and the locally popular seafoods were selected as monitoring objectives. The contents of radionuclide 137Cs were detected using HPGe γ spectrometry. The committed effective doses were estimated based on monitoring results and consumption data on seafoods in Zhejiang. Results The detection ratio of 137Cs in seafood produced on coastal areas of Zhejiang province was estimated to be 35.3% (36/102). Specific activity detected ranged from 0.004 to 0.140 Bq/(kg,Wet). Committed effective doses from ingestion of 137Cs in one year to the population in island region, coastal region and inland region were 3.03×10-5, 1.63×10-5, 3.38×10-6 mSv, respectively, far lower than the world committed effective dose resulting from internal exposure. Conclusions At present, the content level of 137Cs in seafood produced on the coastal areas of Zhejiang province is much lower than the national standard limit, and the dose burden to the population is very minor with no health impact to the population. |
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