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| Results and Analysis on Individual Dose Level of Occupational External Exposure to Radiation for Medical Radiation Workers in China in 2015 |
| DENG Jun1, WANG Tuo1, FAN Sheng-nan1, WANG Jun2, LIU Xiao-hui1, AN Jing-gang1, WANG Yan-jun1, MA Jian-feng1, SUN Quan-fu1, SU Xu1 |
1. National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088 China;
2. Fujian Provinicial Health and Family Planning Commission |
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Abstract Objective To understand and analyze the individual dose level of occupational exposure of medical radiation workers in China in 2015, and to provide the data and scientific basis for the prevention and control of occupational radioactive disease.Methods By using the "Occupational health of Radiation workers management system-external exposure of personal monitoring", the individual dose monitoring results and other related data of medical workers were collected and analyzed statistically.Results Altogether, data for 214,860 persons have been collected in 2015. The average annual individual effective dose was 0.429 mSv. The average annual individual dose of diagnostic radiology, dental radiology, nuclear medicine, radiotherapy, interventional radiology and others, six categories of occupational groups were 0.423 mSv, 0.326 mSv, 0.538 mSv, 0.321 mSv, 0.542 mSv and 0.407 mSv, respectively. The difference of average annual individual effective dose of six categories of occupational groups was statistically significant(P<0.001). The average annual individual dose of nuclear medicine and interventional radiology were significantly higher than those of other occupational categories (P<0.05).Conclusion The average annual individual effective dose of radiation workers meets the national standards. The exposure dose of nuclear medicine and interventional radiation workers is relatively high. To protect their occupational health, the relevant radiation protection measures and facilities should be strengthened.
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Received: 21 March 2017
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