Analysis on individual dosage monitoring results of radiation workers in medical institutions in Baoji City from 2013 to 2022
Objective To analyze the level and change trend of external radiation dose of radiation workers in medical institutions in Baoji City,provide reference for occupational health management of radiation workers in Baoji City.Methods The individual dose of occupational external exposure of radiation workers was monitored by thermoluminescence dosimeter and the data from 2013 to 2022 were analyzed.Results From 2013 to 2022,Baoji Center for Disease Control and Prevention monitored 2 834 adiological workers in medical institutions,and effectively monitored 2 384 people,and the the difference in the effective detection rate was statistically significant among different years(P＜0.05).92.2％ radiological workers had the annual effective dose＜1.0 mSv,and the annual effective dose per capita was between 0.22 and 0.79 mSv.The average annual effective dose per capita in 10-＜20 and 20-＜30 years of working group was higher than that in＜10 years of working group.The differences in the per capita annual effective dose were statistically significant among radiological workers in different years,different types of work and different level of hospitals(all P＜0.05).The nuclear medicine workers had the highest annual effective dose per capita(0.81 mSv),followed by radiotherapy workers(0.52 mSv)and diagnostic radiology workers(0.50 mSv).The per capita annual effective dose of radiological workers in grade Ⅰ and unrated medical institutions was higher than that in grade Ⅱ and Ⅲ medical institutions.Conclusions The effective detection rate of radiation workers in medical institutions in Baoji City from 2013 to 2022 has increased year by year,the individual dose of radiation workers is at a low level,and the annual effective dose per capita shows a downward trend.It is necessary to focus on the health status of nuclear medicine workers,medicine workers in grade Ⅰ and unrated medical institutions,and medicine workers with 10-30 years of radiological service,and carry out targeted education on radiological protection.
Medical institutionsRadiation workersAnnual effective dose
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