Detection and analysis of main food radionuclides around a uranium mine in Hebei Province from 2019-2021

Abstract

Abstract: Objective To investigate the radioactivity level of food around a uranium mine area in Hebei Province,establish the radioactivity baseline value during the normal operation of the uranium mine,improve the level of emergency monitoring of nuclear accidents,and provide a scientific basis for evaluating food safety risks. Methods The high-purity germanium gamma spectrometer was used to detect the radionuclides of the main food produced around a uranium mine area in Hebei Province from 2019 to 2021,and the data were analyzed. Results From 2019 to 2021,the specificactivity ranges of ²³⁸U,²³²Th,²²⁶Ra,⁴⁰K,¹³⁷Cs,which are main food radionuclides around the uranium mine,were method detection limit（MDL）-（1.14 ±0.23）, MDL-（0.163±0.047）,MDL-（1.02±0.11）,（8.5±1.5）-（319.0±32.0）, MDL-（0.295±0.084）Bg/kg,respectively. The annual effective dose caused by the main food produced around the uranium mine in 2019,2020 and 2021 was 93.54,42.43 and 154.71 uSv/a,respectively. Conclusion The level of radionuclides in food around a uranium mine in Hebei Province is far below the national limit,the annual accumulated effective dose of residents due to ingestion is consistent with the United Nations Scientific Committee on the Effects of Atomic Radiation 2000 report,and the trace amount of artificial radionuclide 137Cs will not cause harm to the health of residents.

Key words: Uranium mine, γ-spectrometric measurement, Food radioactive level, Annual accumulated effective dose

CLC Number:

R144

YANG Yanwen, CHENG Yamei, GUO Dawei, ZHOU Kaijian, LUO Yingnan, DONG Xiaoju. Detection and analysis of main food radionuclides around a uranium mine in Hebei Province from 2019-2021. [J]OCCUPATION AND HEALTH, 2023, 39(13): 1779-1781.

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