Abstract
Objective: To explore the main risk factors and to assess the risk of thyroid (131)I exposure among nuclear medical workers. Methods: From March to October in 2019, cluster sampling was adopted to collect the number of (131)I automatic packer and patients treated for thyroid cancer, hyperthyroidism and liven cancer used (131)I, the practicing categories, job rotation and (131)I operation condition of nuclear medical staff were also investegated in the 21 nuclear medicine hospitals in Fujian Province that carried out (131)I nuclide diagnosis and treatment in 2018. (131)I aerosol and personnel thyroid (131)I were measured in 20 hospitals using (131)I for thyroid cancer or hyperthyroidism. The main risk factors leading to thyroid (131)I exposure of nuclear medical staff were found and aninternal exposure risk assessment model was established. Results: The detection rate of (131)I aerosol and personnel thyroid (131)I were 80.0% (16/20) and 25.5% (62/243) in 20 hospitals. The situation of packaging and administration about (131)I in the nearly 10 effective half-life, the concentration of (131)I aerosol in the nuclear medicine workplace, the number of patients treated with (131)I for thyroid cancer or hyperthyroidism were the main risk factors leading to thyroid (131)I internal exposure (OR=5.857, 6.808, 1.983, 1.150, P<0.05) . Conclusion: (131)I exposure is common among nuclear medical workers, attention should be paid to the protection of internal radiation, strengthen the control of main risk factors, so as to reduce the risk of internal radiation.
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More From: Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases
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