西安长安区地热水氡及其相关指标研究

目的 陕西关中地热资源丰富,开发利用广泛,了解西安南郊长安区地热温泉水开发利用对室内环境及人体健康的影响。方法 通过对西安市长安区地热温泉水样的采集,应用FD-125氡钍分析仪测定地热温泉水中氡的浓度,应用Tracerlab crs-z-s离子色谱分析仪测定温泉水中阴阳离子的浓度。结果 发现长安区不同地方的温泉水水中氡含量水平差异较大,区内西北政法大学等高校和滦镇、东大镇各种渔场的温泉水中的氡含量较高,氡含量最高达142.94 kBq·m^-3,同时发现离子浓度水平总体偏高。结论 使用这些地方的温泉水会对人体产生一定剂量的辐射,应加强防护措施;温泉水中氡浓度与离子浓度呈正相关关系。

Radon Concentration and Other Parameters in Underground Hotwater of Chang'an District of Xi'an

Objective Object Geothermal resource is very rich in central Shaanxi and is widely exploited presently. The object of the study is to know the effect of geothermal resource exploiting to indoor environment and people health. Methods The concentrations of radon and ions in geothermal water were measured by FD-125 Rn-analysis meter and Tracerlab crs-z-s ion analyzer, respectively. Results The measurement results indicat that the radon concentration is various in the geothermal water from different area and the radon concentrations in the water from Northwest University of Politics & Law, Luanzhen and fisheries of Dongdazhen are high with the maximum of 142.94 kBq·m^-3. The ions concentration in the studied water samples are relatively high. Conclusion The usage of high radon geothermal water would cause radiation hazard to people and radon concentration is positive correlation with ion concentation. The radiation protection measurement of geothermal usage should be strengtherned.