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对陕西省境内某天然铀矿附近的 4个单位环境天然γ辐射空气吸收剂量率水平、生活饮用水和周围河水、土壤、生长中的蔬菜等环境样品的天然放射性核素含量 ,以及当地居民的住宅和工作区室内和室外空气中氡浓度进行了调查采样和分析测定。结果表明该调查区天然辐射本底比陕西省和全国相应的平均水平偏高 ,但绝大多数区域仍属于正常天然辐射本底地区。只有毗邻山体的局部地区以及岩洞工作室内辐射水平较高 ,应采取适当的防护措施。
The natural radionuclide content of natural γ radiation air dose rate, domestic drinking water and surrounding river water, soil, growing vegetables and other environmental samples of 4 units near a certain natural uranium mine in Shaanxi Province were determined. Indoor and outdoor radon concentrations in residential and work areas were investigated by sampling and analysis. The results show that the natural radiation background of the survey area is higher than the corresponding average level in Shaanxi Province and the whole country, but most of the areas still belong to the normal natural radiation background. Only in areas adjacent to the mountain and cave workrooms with high levels of radiation, appropriate protective measures should be taken.