Li Mengxue, Deng Lei, Zhou Wenshan, Zhao Yanfang, Wang Tuo, Hao Shuxia, Fan Shengnan, Deng Jun, Sun Quanfu
National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing, 100088, China.
Institute of Occupational Medicine of Jiangxi, Nanchang, 330006, China.
Appl Radiat Isot. 2024 Jun;208:111283. doi: 10.1016/j.apradiso.2024.111283. Epub 2024 Mar 11.
A retrospective analysis of occupational exposure to ionizing radiation from medical uses and industrial uses in the three provinces of Central China from 2000 to 2021 was conducted. The average annual effective dose in medical uses and industrial uses decreased from 2.042 mSv and 2.334 mSv in 2000-2002 to 0.476 mSv and 0.371 mSv in 2021 respectively; the fraction of monitored workers receiving annual dose not exceeding 1 mSv increased from 60.78% and 74.45% in 2000-2002 to 94.20% and 96.85% in 2021 respectively, while receiving annual doses exceeding 20 mSv declined from 1.35% and 1.91% in 2000-2002 to 0.18% and 0.03% in 2021 respectively. The average annual effective dose and NR in the period 2000-2021 were relatively high in professional public health institutions (0.955 mSv and 0.004) and hospitals (0.815 mSv and 0.004). In 2021, the average annual effective dose to monitored workers in different occupational categories in medical uses in the three provinces of Central China were in the range of 0.199-0.692 mSv, with interventional radiology received the highest dose and NR (0.692 mSv and 0.005); the average annual effective dose ranged from 0.161 to 0.493 mSv in industrial uses, with industrial radiography received the highest dose and NR (0.493 mSv and 0.001). Occupational exposure in medical uses and industrial uses declined obviously in Central China, and the groups receiving higher doses are the radiation workers working in hospitals and professional public health institutions, or engaged in interventional radiology, nuclear medicine and industrial radiography, warranting more effective radiation protection measures.
对2000年至2021年中国中部三省医疗用途和工业用途的电离辐射职业暴露进行了回顾性分析。医疗用途和工业用途的年平均有效剂量分别从2000 - 2002年的2.042 mSv和2.334 mSv降至2021年的0.476 mSv和0.371 mSv；年剂量不超过1 mSv的受监测工人比例分别从2000 - 2002年的60.78%和74.45%增至2021年的94.20%和96.85%，而年剂量超过20 mSv的比例分别从2000 - 2002年的1.35%和1.91%降至2021年的0.18%和0.03%。2000 - 2021年期间，专业公共卫生机构（0.955 mSv和0.004）和医院（0.815 mSv和0.004）的年平均有效剂量和年集体有效剂量相对较高。2021年，中国中部三省医疗用途中不同职业类别的受监测工人年平均有效剂量在0.199 - 0.692 mSv范围内，其中介入放射学的剂量和年集体有效剂量最高（0.692 mSv和0.005）；工业用途中年平均有效剂量在0.161至0.493 mSv之间，其中工业射线照相的剂量和年集体有效剂量最高（0.493 mSv和0.001）。中国中部地区医疗用途和工业用途的职业暴露明显下降，接受较高剂量的群体是在医院和专业公共卫生机构工作、或从事介入放射学、核医学和工业射线照相的辐射工作人员，需要采取更有效的辐射防护措施。
