辐射防护2025，Vol.45Issue(4)：349-354,6.
包头市某稀土尾矿库辐射环境监测与分析
Radiation environment monitoring and analysis of a rare earth tailing pond in Baotou
邬东1
作者信息
- 1. 核工业二〇八大队,内蒙古包头 014010
- 折叠
摘要
Abstract
The radiation environment level of a typical rare earth tailing pond in Baotou City is monitored and analyzed.The results show that the average γ-radiation dose rate of the slag in the tailings dam is 680.3 nGy/h,which is about 6.6 times of the average background γ-radiation dose rate in Baotou city.The Th-232 activity concentration in soil samples was from 36.1 to 364.7 Bq/kg during the three monitoring years,which was within the normal fluctuation range compared with the national monitoring range in 2019.The average activity concentration of Th-232 in the tailing pond was 1.417 Bq/g.The tailing reservoir should be strictly supervised to avoid the spread of radioactive contamination.The circulating water of tailing pond workshop formed by tailing pond seepage contains a very small amount of radioactive thorium,and its thorium nuclide concentration is similar to the local groundwater background level during the monitoring period.关键词
尾矿库/γ剂量率/钍核素/辐射环境Key words
tailing pond/gamma radiation dose rate/thorium nuclide/radiation environment分类
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邬东..包头市某稀土尾矿库辐射环境监测与分析[J].辐射防护,2025,45(4):349-354,6.
