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首页> 外文学位 >Radon and thoron concentrations in private groundwater wells near uranium mining activity in South Texas.
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Radon and thoron concentrations in private groundwater wells near uranium mining activity in South Texas.

机译：南德克萨斯铀矿开采活动附近的私人地下水井中well和的浓度。

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摘要

When uranium and radon are detected in groundwater in South Texas, there is often public controversy as to whether the uranium is present naturally, or is rather a consequence of uranium mining activity in the area. In South Texas there are 26 closed and 4 operating uranium mines. The purpose of the study was to conduct an evaluation of the groundwater quality near a uranium in-situ recovery (ISR) mining operation. Parameters evaluated in fifty private wells included 222Rn, fluoride, chloride, sulfate, nitrate, conductivity, dissolve oxygen, temperature and alkalinity. The results showed that 50% of the sampled wells had radon concentrations below 300 pCi/L, 46% had concentrations between 307 and 4000 pCi/L, and 4% had concentrations above the AMCL of 4000 pCi/L. The radon concentrations showed positive correlation with distance from the mining site and negative correlation with the nitrate concentrations. Finally, the results showed that groundwater temperature and sulfate concentrations were significantly greater than in previous studies in Kleberg County.
机译：当在南德克萨斯州的地下水中检测到铀和ra时，关于铀是否自然存在还是该地区铀矿开采活动的结果，经常引起公众争议。在南德克萨斯，有26个已关闭的铀矿和4个正在运营的铀矿。该研究的目的是对铀原位开采（ISR）采矿作业附近的地下水质量进行评估。在五十个私人井中评估的参数包括222Rn，氟化物，氯化物，硫酸盐，硝酸盐，电导率，溶解氧，温度和碱度。结果表明，有50％的采样孔had浓度低于300 pCi / L，有46％的concentrations浓度在307至4000 pCi / L之间，有4％的AMCL浓度高于4000 pCi / L。 don浓度与距矿区的距离呈正相关，与硝酸盐浓度呈负相关。最后，结果表明，地下水温度和硫酸盐浓度明显高于以前在克莱伯格县的研究。

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  • 作者

    Lopez, Waldy Fernandez.;

  • 作者单位

    Texas A&M University - Kingsville.;

  • 授予单位 Texas A&M University - Kingsville.;
  • 学科 Environmental engineering.;Environmental geology.
  • 学位 M.S.
  • 年度 2012
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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