辐射防护通讯 ›› 2021, Vol. 41 ›› Issue (1): 16-21.

• 研究通报 • 上一篇    下一篇

广东省某伴生放射性矿开发利用企业辐射环境监测

孙功明, 林健, 李冠超   

  1. 广东省核工业地质局辐射环境监测中心, 广东 广州, 510800
  • 收稿日期:2021-01-13 出版日期:2021-02-20 发布日期:2021-10-26
  • 作者简介:孙功明(1987—),男,2010年毕业于东华理工大学应用化学专业,学士;2013年毕业于东华理工大学分析化学专业,硕士;工程师。从事辐射环境监测工作。

Radiation Environment Monitoring of a NORM Development and Utilization Enterprise in Guangdong

Sun Gongming, Lin Jian, Li Guanchao   

  1. Radiation Environment Monitoring Center, Guandong Nuclear Geology, Guangzhou, Guangdong, 510800
  • Received:2021-01-13 Online:2021-02-20 Published:2021-10-26

摘要: 报道广东省某独居石生产伴生放射性矿开发利用企业辐射环境监测工作。监测结果显示:2019、2020年度,该企业周围区域内γ辐射空气吸收剂量率为113~263 nGy/h;空气中氡浓度为<3.7~25.4 Bq/m3,钍射气浓度为5.9~14.2 Bq/m3;土壤中U、Th和226Ra含量分别为0.99~4.85 mg/kg、31.4~90.0 mg/kg和18.9~57.9 Bq/kg;地下水中U、Th 和226Ra含量分别为<0.04~0.10 μg/L、<0.05~0.16 μg/L和<2.0~5.7 mBq/L;排放废气中的U、Th总量远小于稀土工业污染物排放标准限值。

关键词: 伴生放射性矿, 独居石, 辐射环境监测

Abstract: We report the radiation environment monitoring of an enterprise developing and utilizing monazite in Guangdong Province. The results show that in 2019 and 2020, the air absorption dose rate of γ radiation in the surrounding area is 113-263 nGy/h. The concentrations of radon and thorium in air are less than 3.7-25.4 Bq/m3 and 5.9-14.2 Bq/m3 respectively. The contents of U, Th and 226Ra are 0.99-4.85 mg/kg, 31.4-90.0 mg/kg and 18.9-57.9 Bq/kg, respectively. The contents of U, Th and 226Ra in groundwater were < 0.04-0.10 μg/L, <0.05-0.16 μg/L and <2.0-5.7 mBq/L, respectively. The total amount of U and Th in wastewate is far less than the standard discharge limit of pollutants in rare earth industries.

Key words: NORM, Monazite, Radiation environment monitoring

中图分类号: 

  • X837