2019-2021年天津市放射工作人员个人剂量监测结果分析
Analysis on personal dose monitoring results for radiation workers in Tianjin City from 2019 to 2021
郝培 1蔚景霖 1范丽娜 1杨雪莹1
作者信息
- 1. 天津市疾病预防控制中心职业健康研究所,天津 300011
- 折叠
摘要
目的 分析天津市放射工作人员个人剂量监测水平,为开展辐射防护工作提供依据.方法 依照GBZ 128-2019《职业性外照射个人监测规范》和GB 18871-2002《电离辐射防护与辐射源安全基本标准》,采用热释光剂量系统测量,对2019-2021年放射工作人员的个人剂量水平进行估算,运用Kruskal-Wallis H检验和Nemenyi法等进行统计分析.结果 2019-2021年共监测放射工作人员15 115人次,人均年有效剂量为0.129 mSv/a,2021年人均年有效剂量为0.150 mSv/a,高于2019和2020年人均年有效剂量,差异均有统计学意义(均P＜0.05);诊断放射学人均年有效剂量(0.132 mSv/a)高于其他职业类别,其次为核医学(0.129 mSv/a),差异均有统计学意义(均P＜0.05);三级医院人均年有效剂量为0.127 mSv/a,低于一级和二级医院,差异均有统计学意义(均P＜0.05).结论 天津市放射工作人员个人剂量处于较低水平,还需加强诊断放射学和核医学、一二级医院工作人员的放射卫生管理工作.
Abstract
Objective To analyze the personal dose monitoring level of radiation workers in Tianjin and provide a basis for carrying out radiation protection work.Methods According to the GBZ128-2019"Code for Personal Monitoring of Occupational External Exposure"and GB 18871-2002"the Basic Standards for Protection against Ionizing Radiation and Safety of Radiation Sources",the personal dose levels of radiation workers from 2019 to 2021 were estimated using the thermoluminescence dose system,and the Kruskal Wallis H test and Nemenyi method were used for statistical analysis.Results A total of 15 115 radiation workers were monitored from 2019 to 2021,with a per capita annual effective dose of 0.129 mSv/a.The per capita annual effective dose in 2021 was 0.150 mSv/a,which was higher than the per capita annual effective dose in 2019 and 2020,and the differences were statistically significant(both P＜0.05).The annual effective dose per capita in diagnostic radiology(0.132 mSv/a)was higher than other occupational categories,followed by nuclear medicine(0.129 mSv/a),and the differences were statistically significant(all P＜0.05).The annual effective dose per capita in tertiary hospitals was 0.127 mSv/a,which was lower than that in primary and secondary hospitals,and the difference was statistically significant(both P＜0.05).Conclusion The personal dose of radiation workers in Tianjin City is at a relatively low level,and it is necessary to strengthen the radiation health management of diagnostic radiology,nuclear medicine,and primary and secondary hospital staff.
关键词
放射工作人员/个人剂量/人均年有效剂量Key words
Radiation workers/Personal dose/Annual effective dose per capita引用本文复制引用
基金项目
天津市卫生健康科技项目(TJWJ2022XK040)
天津市医学重点建设学科(TJYXZDXK-066B)
出版年
2024
NETL
NSTL
万方数据