Objective: To analyze the personal dose of radiation exposure of radiation workers in some medical institutions in Tianjin, and to provide reference for radiation protection work. Methods: Using cluster sampling method, 8718 radiation workers from some medical institutions (including tertiary, secondary and first-level hospitals) in Tianjin from 2014 to 2018 were selected as the subjects of investigation. Monitoring data were collected, analyzed and evaluated. Results: From 2014 to 2018, a total of 8718 persons were monitored, with 14 persons (0.2%) whose annual effective dose was higher than 5 mSv; 8661 persons (99.3%) whose annual effective dose was lower than 2 mSv; 43 persons (0.5%) whose annual effective dose per capita was the highest in diagnostic radiology, which was 0.22 mSv; the annual effective dose per capita of radiation workers in primary and secondary hospitals was higher than that in tertiary hospitals; and the abnormal rate of individual dose monitoring was 73. Personnel, accounting for 0.8% of the total number of monitored personnel; the annual effective dose changes of the four types of radiation workers monitored from 2014 to 2018 showed a downward trend, and the annual effective dose of the four types of radiation workers in 2014 was the highest. Conclusion: Personal dosage of radiation workers in some medical institutions in Tianjin is at a low level, and attention should be paid to diagnostic radiology workers.

收集整理2016-2018年天津市50家放射诊疗机构的放射工作人员职业性外照射个人剂量监测数据,对放射作业区域防护效果进行评估,从而为放射性疾病的预防、诊断和治疗提供有效的数据支持.通过热释光个人剂量测量(TLD)系统对进行职业性外照射个人剂量监测,并对监测结果进行统计分析.结果 显示,2016-2018年3年间共监测3 525人次,人均年有效剂量达0.22mSv.从工种分析,介入放射学作业人员的人均年有效剂量值最高,达0.47 mSv.从医院级别分析,三级医院人均年有效剂量值要高于一级和二级医院.提示,天津市放射工作人员在的年均有效剂量没有超过职业照射个人剂量限值;在医院、工种之间照射剂量的明显差别仍值得注意.

健康监护是通过各种检查和分析，评价职业性有害因素对接触者健康影响及其程度，掌握职工健康状况，及时发现健康损害征象，以便采取相应的预防措施，防治有害因素所致疾患的发生和发展。西青区地处中国沿海开放前沿的环渤海经济圈内，依属天津，北邻北京，交通便捷，受大都市市场拉动和经济技术辐射较强，是典型的城郊经济区。经济的持续稳定发展与职业人群的健康状况密切相关。为进一步了解西青区有毒有害作业工人健康监护现状，更好地做好并加强本区职业病防治工作，笔者对2006-2012年本区有毒有害作业工人健康监护情况进行汇总分析，报告如下。

随着社会的发展和工业化进程的不断加快，职业病危害已经成为我国当前一个重大的公共卫生和社会问题［1］。作为职业病防治的重要手段，职业病危害因素监测为职业病防治提供了必不可少的依据。为了进一步了解西青区职业病防治现状，加强职业病危害因素的监督管理。本研究对天津市西青区2006年至2012年职业危害网络直报系统内的信息进行分析，为制定职业病防治政策提供科学可靠的依据。

目的 了解天津市西青区2008-2012年居民食用碘盐情况,为制定消除碘缺乏病防治策略提供科学依据.方法 按照东、西、南、北、中片区随机抽取1个乡(镇、街),每乡(镇、街)中随机抽取4个行政村(居委会),每行政村(居委会)中随机抽检15户居民盐样,根据《全国碘盐监测方案(修订)》采用直接滴定法测定碘盐.结果 2008-2012年共检测居民户碘盐1 488份,碘盐中位数为30.1 mg/kg,碘盐覆盖率、碘盐合格率、合格碘盐食用率、非碘盐率分别为93.8％、99.4％、93.1％、6.3％.2008年碘盐覆盖率、合格碘盐食用率、碘盐合格率分别仅为87.2％、85.4％和98.0％,2010-2012年碘盐覆盖率、合格碘盐食用率、碘盐合格率均明显高于2008年(P＜0.05).结论 西青区碘盐合格率和合格碘盐食用率呈逐年上升趋势并且已达到国家要求,但仍存在不合格碘盐现象,须加强食用碘盐的监督监测工作和居民碘缺乏病防治知识的宣传、教育工作.

为了动态评价2007-2009年天津市西青区居民户碘盐普及情况,根据<全国碘盐监测方案(修订)>的要求,对西青区居民户进行食用碘盐监测,现将结果报道如下.