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首页> 外文期刊>Cogent Environmental Science >Radionuclides and radon levels in soil and ground water from solid minerals-hosted area, south-western Nigeria
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Radionuclides and radon levels in soil and ground water from solid minerals-hosted area, south-western Nigeria

机译：尼日利亚西南部固体矿产宿主地区土壤和地下水中的放射性核素和ra水平

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In this study, we determine the activity concentrations of natural radionuclides, ~(238)U, ~(232)Th and ~(40)K, in soil from solid mineral-hosted site. The dose rates were calculated and radon concentration in the ground water system was measured. The radionuclides were determined using the HPGe detector-driven gamma spectrometric technique and the RAD7/RAD H_(2)O system was used to determine the radon concentrations. Some radionuclides in the samples including the mineral, Mica, and some of the ground water samples, especially from well and borehole, had high activity and radon concentrations. We concluded that the two mica-granite geological structure and the depth of the source is a predominant factor for high radon concentration and definitely contributed to the level observed in the borehole sources. The relatively high levels of the radionuclides and radon indicate certain level of health risk. Though the effective dose seemed low, effects of prolonged exposure to radiation is still possible.
机译：在这项研究中，我们确定了来自固体矿藏的土壤中天然放射性核素〜（238）U，〜（232）Th和〜（40）K的活性浓度。计算剂量率并测量地下水系统中的concentration浓度。使用HPGe检测器驱动的伽马能谱技术确定放射性核素，并使用RAD7 / RAD H_（2）O系统确定the的浓度。样品中的一些放射性核素，包括矿物质，云母和一些地下水样品，特别是井和井眼中的放射性核素，具有很高的活度和ra浓度。我们得出的结论是，这两种云母-花岗岩的地质结构和源的深度是high浓度高的主要因素，并且肯定对钻孔源的观测水平有贡献。放射性核素和ra的含量相对较高表明一定程度的健康风险。尽管有效剂量似乎很低，但延长照射时间仍然可能产生效果。

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