摘要
目的 回顾性分析重庆市2016—2020年间放射工作人员个人剂量监测情况,为其职业健康监护和放射防护工作提供科学参考。方法 以在重庆市疾病预防控制中心2016—2020年进行个人剂量监测的放射工作人员为研究对象,收集监测数据进行相关分析。结果 本次调查共计40 926人,135 622人次,5年间放射工作人员人均年有效剂量为0.56 mSv,监测年剂量超过1 mSv的放射工作人员占总监测人数的比值(NR_(1))为13.019%,监测年剂量超过5 mSv的放射工作人员占总监测人数的比值(NR_(5))为0.335%;不同年份重庆市人均年有效剂量呈现先下降再上升再下降趋势,差异有统计学意义(F=971.754,P<0.001);不同职业类别的年有效剂量变化趋势有差异,总体趋势均呈逐年下降。医学应用中的核医学和介入放射学人均年有效剂量相对较高,差异无统计学意义(P>0.05)。工业应用中的工业探伤和加速器运行人均年有效剂量相对较高,差异无统计学意义(P>0.05)。医学应用不同职业类别人均有效剂量在不同年份差异有统计学意义(F=8.892~682.852,P<0.001),其中2016年5种医学应用职业类别人均年有效剂量均最高,2018年和2019年介入放射学人均年有效剂量最高。结论 2016—2020年重庆市放射工作人员人均年有效剂量逐年下降并保持在相对较低的水平,符合国家标准要求,监测结果提示,应对核医学、介入放射学、工业探伤类和加速器运行的放射工作人员给予重点关注。
Objective To retrospectively analyze the individual dose monitoring of radiation workers in Chongqing City from 2016 to 2020,so as to provide scientific reference for occupational health monitoring and radiation protection.Methods Radiation workers who performed individual dose monitoring in Chongqing Center for Disease Control and Prevention from 2016 to 2020 were selected as the research objects,and the monitoring data were collected and analyzed.Results A total of 40926 individuals were included in this study,with a total of 135622 person-years.The average annual individual effective dose of radiation workers over the five-year period was 0.56 mSv.NR_(1) and NR_(5),the ratio of the number of works receiving annual individual does exceeding 1 and 5 mSv to the to the total monitor workers were 13.019%and 0.335%.The annual effective dose per capita in Chongqing City showed a trend of first decreasing,then increasing and then decreasing again over the study period,with significant differences between different years(F=971.754,P<0.001).Although there were some differences in the variation trend of annual effective dose among different occupational categories,the overall trend was decreasing year by year.The average annual effective dose of nuclear medicine and interventional radiology was relatively high,and the difference was not statistically significant(P>0.05).The average annual effective dose of industrial flaw detection and accelerator operator in industrial application was relatively higher,and the difference was not statistically significant(P>0.05).There were statistically significant differences in the per capita effective doses of different occupational categories of medical application in different years(F=8.892-682.852,P<0.001).Among them,the per capita annual effective doses of five occupational categories of medical application were the highest in 2016,and the per capita annual effective doses of interventional radiology were the highest in 2018 and 2019.Conclusions The per capita annual effective do
作者
黄强
谭强
唐萍
黄锐
HUANG Qiang;TAN Qiang;TANG Ping;HUANG Rui(Chongqing Center for Disease Control and Prevention,Chongqing 400042,China;Chongqing Jiangbei District Center for Disease Control and Prevention,Chongqing 400020,China)
出处
《中国热带医学》
CAS
2023年第5期545-549,555,共6页
China Tropical Medicine
关键词
职业性外照射
个人剂量
职业健康
监督管理
Occupational external exposure
individual dose
occupational health
supervision and administration
