| 赵新春,冯兰英,马一龙,等.桂北某铀矿周围主要农产品放射性水平检测分析[J].中华放射医学与防护杂志,2016,36(12):925-928.Zhao Xinchun,Feng Lanying,Ma Yilong,et al.Test and analysis of radioactivity levels in main agricultural production around a uranium mine in Northern Guangxi[J].Chin J Radiol Med Prot,2016,36(12):925-928 |
| 桂北某铀矿周围主要农产品放射性水平检测分析 |
| Test and analysis of radioactivity levels in main agricultural production around a uranium mine in Northern Guangxi |
| 投稿时间：2016-08-12 |
| DOI：10.3760/cma.j.issn.0254-5098.2016.12.010 |
| 中文关键词: γ能谱仪 放射性水平 比活度 放射性核素 转移系数 |
| 英文关键词:γ-ray spectrometer Radioactivity level Specific activity Radionuclide Transfer coefficient |
| 基金项目:广西医药卫生科研课题项目（Z2014158） |
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| 中文摘要: |
| 目的 调查桂北某铀矿周围主要农产品中放射性核素含量水平。方法 采用高纯锗（HPGe）γ能谱仪对所采集的农产品和土壤样进行检测分析。结果 检测出某区域萝卜（含叶）、萝卜叶和萝卜中的226Ra比活度分别为45.0、66.7和32.3 Bq/kg。该区域萝卜地土壤中226Ra与238U的含量均值分别为19 672和85 917 Bq/kg。226Ra在土壤-萝卜和萝卜叶的迁移系数分别为1.61×10-3和3.40×10-3。该区域外其余农产品的放射性水平与陆产食品全国放射性水平调查一致，萝卜地周围其他土壤的放射性水平与全国环境天然放射性水平调查土壤结果基本一致。结论 该区域土壤疑被附近铀矿污染，需要进一步核实并对此区域采取相关处理措施。 |
| 英文摘要: |
| Objective To investigate radioactivity levels in the main agriculture products around a uranium mine in Northern Guangxi. Methods The agriculture products and soil samples were collected and analyzed by using HPGe gamma ray spectrometer.Results The specific activity of 226Ra in radish (including leaf), radish leaves and radish, collected in one place, were 45.0, 66.7 and 32.3 Bq/kg, respectively. Those of 226Ra and 238U in the radish soil collected in the same place were 19 672 and 85 917 Bq/kg, respectively. The transfer coefficients of soil-to-radish and soil-to-leaves were 1.61×10-3 and 3.40×10-3, consistent with those reported in relevant literature. Radioactivity levels in agricultural products in another survey was in consistence with those in the national survey for food products. Radioactivity levels in soil elsewhere near the radish site was consistent with the results of the national soil radioactivive background survey. Conclusions The soil in this place has been contaminated by the nearby uranium mine. It is important to investigate this place further and take the necessary measures. |
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