Радиационная гигиена (Dec 2020)
The outcomes of functioning of the Unified System of Individual Dose Control of the Russian Federation citizens based on the 2019 data
Abstract
The article presents results of the analysis of information on the doses of technogenic exposure of personnel and the population due to the normal operation of radiation facilities, exposure of the population due to natural sources and technogenically altered radiation environment, and medical exposure of patients. The data were obtained using the Unified System of Individual Dose Control of the RF citizens for 2019. The analysis was carried out on the basis of the data contained in the forms of state statistical observation No. 1-DOZ (personnel individual doses), No. 2-DOZ (emergency doses), No. 3-DOZ (patients’ exposure doses) and No. 4-DOZ (population exposure doses from natural and technogenically impacted background) for 2019 submitted by the organizations and territories, the state sanitary and epidemiological supervision of which was carried out by Rospotrebnadzor and FMBA of Russia. The article used data obtained within the framework of Radiation-Hygiene passportization. In 2019, 18430 organizations dealing with technogenic sources of ionizing radiation submitted forms No. 1-DOZ with the information on the doses to personnel with a total number of 247934 people, of which 227723 people belonged to the personnel group A and 20211 person to the personnel group B. For these groups, the doses were assessed based on results of individual dosimetric control. In 2019, according to the Unified System of Individual Dose Control data, the average individual annual effective dose of technogenic exposure to the personnel group A was 1.19 mSv, and for the personnel group B it was 0.64 mSv. The total number of X-ray and radiological diagnostic procedures performed in the Russian Federation in 2019 exceeded 306.5 million, or 2.09 procedures per a citizen. The average annual effective dose of medical radiation exposure per one resident of Russia in 2019 was 0.62 mSv, and per procedure — 0.31 mSv. The submittedforms No. 4-DOZ of the constituent entities of the Russian Federation for 2019 contained results of the measurements of dose rate of gamma radiation in 9179 wooden houses, 11,307measurements in low-rise stone houses, 121323 measurements in multi-storey stone houses and 229342 measurements in open areas. These also contained results of 3930 measurements of radon levels in wooden houses, 5071 measurements in low-rise stone houses and 46896 measurements in multi-storey stone houses, as well as the results of 19444 analyses of the levels of natural radionuclides in drinking water. The average annual effective dose of radiation to residents of the Russian Federation from natural sources, according to all measurements for the period from 2001 to 2019, was 3.36 mSv. The article provides Appendices with the final forms of Unified System of Individual Dose Controlfor the Russian Federation for 2019. Data for the forms have been obtained on the basis of summarizing the information contained in the forms of state statistical observation No. 1-DOZ, 3-DOZ and 4-DOZ of the constituent entities of the Russian Federation.
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