辐射防护 ›› 2020, Vol. 40 ›› Issue (4): 278-285.

• 辐射防护监测 • 上一篇    下一篇

广西伴生放射性矿开发利用中的放射性水平初步调查

黄伊林1, 何贤文1, 冯亮亮1, 彭崇1, 陈宝才1, 周花珑1, 林明媚1, 林武辉2, 管永精2   

  1. 1.广西壮族自治区辐射环境监督管理站,南宁 530222;
    2.广西大学,南宁 530004
  • 收稿日期:2019-04-09 出版日期:2020-07-20 发布日期:2020-09-21
  • 通讯作者: 林武辉。E-mail:linwuhui8@163.com
  • 作者简介:黄伊林(1963—),男,1984年本科毕业于华东地质学院放射性物探专业,高级工程师。E-mail:heiaea@163.com

Investigation for radioactivity level during the exploitation and utilization of mines associated with radioactivity in Guangxi

HUANG Yilin1, HE Xianwen1, FENG Liangliang1, PENG Chong1, CHEN Baocai1, ZHOU Hualong1, LIN Mingmei1, LIN Wuhui2, GUAN Yongjing2   

  1. 1.Radiation-Environment Management and Monitoring Station of Guangxi Zhuang Autonomous Region, Nanning 530222;
    2.Guangxi University,Nanning 530004
  • Received:2019-04-09 Online:2020-07-20 Published:2020-09-21

摘要: 本文围绕广西境内17类矿产资源的开发利用展开调查,并对280家详查企业开发利用中的放射性水平进行了监测分析。结果表明:在原料与产品中,锆石和氧化锆、铅/锌、锗/钛、钒等行业238U、226Ra、232Th任一核素比活度大于1 000 Bq/kg。在固体废物中,稀土、锆石和氧化锆、铅/锌、锗/钛、锡、钒等行业238U、226Ra、232Th任一核素比活度大于1 000 Bq/kg。花岗岩企业的废水中总α、总β放射性水平偏高。研究发现,在对矿产开发利用企业开展放射性水平调查时,将γ辐射剂量率现场监测筛选标准下调50 nGy/h,即设定为在固体表面1 m处的γ辐射剂量率超过“当地本底水平”+100 nGy/h时,可更为保守地避免出现遗漏放射性水平较高企业的情况。

关键词: 伴生放射性矿, 放射性, 筛选标准

Abstract: Based on the investigation of 17 types of mineral resources in Guangxi, the radioactivity levels of 280 factories and mines had been measured and analyzed in this study. The results indicated that the average specific radioactivity in raw materials and products derived from the zircon ore, lead/zinc ore, germanium/titanium ore, and vanadium ore is greater than 1 000 Bq/kg. The average specific radioactivity in solid wastes produced in rare earth ore, zircon ore,lead/zinc ore, germanium/titanium ore, tin ore, and vanadium ore is greater than 1 000 Bq/kg. The gross α and gross β in waste water are higher than the discharge limit. The screening value of γ air adsorbed dose rate of 100 nGy/h was recommended to avoid missing of some industries with high radioactivity.

Key words: mines, radiation, screening standard

中图分类号: 

  • TL75+1