| 孙伟航,张琳,牛菲,许家昂,闵楠,杨淑慧,刘芳,李甜甜,朱建国.碘治疗工作场所空气中131I的监测结果与分析[J].中华放射医学与防护杂志,2021,41(12):906-911 |
| 碘治疗工作场所空气中131I的监测结果与分析 |
| Monitoring results and analysis of 131I in the air of workplace treated with iodine |
| 投稿时间：2021-08-17 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.12.005 |
| 中文关键词: 甲状腺癌 131I治疗 空气采样 碘盒 内照射 |
| 英文关键词:Thyroid cancer 131I treatment Air sampling Iodine box Internal radiation |
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| 中文摘要: |
| 目的 了解碘治疗工作场所空气中131I气溶胶的活度浓度，估算核医学科医务人员吸入131I所致内照射剂量。方法 使用CF-1001BRL型便携式大容量空气采样器，采用碘盒收集山东省6家医院核医学科碘治疗工作场所空气中的131I气溶胶，利用HPGe-γ能谱仪对样品进行测量，得到6家医院碘治疗工作场所中131I的活度浓度值，并估算医务人员的内照射剂量。结果 6家医院碘治疗工作场所空气中131I的活度浓度范围为3.64~2.94×103Bq/m3，控制区（病房、患者通道、分装间、远程操作给药室）131I的浓度水平明显高于监督区，监督区131I的浓度最高的是医护通道，为2.62×102Bq/m3。核医学科医务人员两种职业待积有效剂量估算值为0.07~5.68 mSv，均未超过国家规定限值。结论 医院核医学科碘治疗工作场所仍存在不可忽视的131I气溶胶污染现象，应面向全国各地区核医学科开展内照射监测，探索更加合理的防护标准和方法。 |
| 英文摘要: |
| Objective To understand the activity concentration of 131I aerosol in the air of the iodine treatment workplace and estimate the internal dose of 131I inhaled by medical staff in nuclear medicine. Methods Using CF-1001BRL portable large capacity air sampler, the 131I aerosol in the iodine treatment workplace of nuclear medicine department of 6 hospitals in Shandong province was collected by iodine box, and the HPGe-γ energy spectrometer was used to measure the samples. The 131I activity concentration in iodine treatment workplace at 6 hospitals was obtained, and the internal dose to medical staff was estimated. Results The 131I activity concentration in the air in iodine treatment workplaces at 6 hospitals ranged from 3.64 to 2.94×103 Bq/m3. The 131I activity concentration in the controlled area (ward, patient passageway, subpacking room, operation administration room) was significantly higher than that in the supervised area. The highest 131I activity concentration, 2.62×102 Bq/m3, in the supervised area was found in the medical care passageway. The estimated effective dose to nuclear medicine workers was 0.07-5.68 mSv, not exceeding the national limit. Conclusions The phenomenon of 131I aerosol contamination still exists in the iodine treatment workplaces of nuclear medicine departments in hospitals, so it is necessary to carry out internal radiation monitoring for nuclear medicine departments all around the country, and explore more reasonable protection standards and methods. |
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