| Sun Weihang,Zhang Lin,Niu Fei,Xu Jiaang,Min Nan,Yang Shuhui,Liu Fang,Li Tiantian,Zhu Jianguo.Monitoring results and analysis of 131I in the air of workplace treated with iodine[J].Chinese Journal of Radiological Medicine and Protection,2021,41(12):906-911 |
| Monitoring results and analysis of 131I in the air of workplace treated with iodine |
| Received:August 17, 2021 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.12.005 |
| KeyWords:Thyroid cancer 131I treatment Air sampling Iodine box Internal radiation |
| FundProject: |
| Author Name | Affiliation | E-mail | | Sun Weihang | Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250117, China | | | Zhang Lin | Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250117, China | | | Niu Fei | College of Preventive Medicine, Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250012, China | | | Xu Jiaang | College of Preventive Medicine, Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250012, China | | | Min Nan | College of Preventive Medicine, Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250012, China | | | Yang Shuhui | College of Preventive Medicine, Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250012, China | | | Liu Fang | College of Preventive Medicine, Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250012, China | | | Li Tiantian | Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250117, China | | | Zhu Jianguo | College of Preventive Medicine, Shandong First Medical University(Shandong Academy of Medical Sciences), Jinan 250012, China | 13031737690@163.com |
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| Abstract:: |
| 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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