| Yu Shunfei,Cao Yiyao,Xuan Zhiqiang,Zhang Ronghua,Lai Zhongjun,Li Xinxing,Zhao Sanhu,Zhao Yaoxian,Zhang Qing.Assessment of committed effective dose from ingestion of 137Cs in seafood from coastal areas of Zhejiang province[J].Chinese Journal of Radiological Medicine and Protection,2019,39(9):697-701 |
| Assessment of committed effective dose from ingestion of 137Cs in seafood from coastal areas of Zhejiang province |
| Received:June 14, 2019 |
| DOI：10.3760/cma.j.issn.0254-5098.2019.09.011 |
| KeyWords:Gamma spectrometer Sea products 137Cs Annual committed effective dose |
| FundProject:浙江省医药卫生科技计划基金项目（2015RCA004） |
| Author Name | Affiliation | E-mail | | Yu Shunfei | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Cao Yiyao | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Xuan Zhiqiang | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Zhang Ronghua | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Lai Zhongjun | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Li Xinxing | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Zhao Sanhu | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Zhao Yaoxian | The Center for Disease Control and Prevention of Zhejiang Province, Hangzhou 310053, China | | | Zhang Qing | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, 100088 Beijing, China | zq_wl@163.com |
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| Abstract:: |
| 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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