降札异常高氡温泉水中放射性水平调查

目的调查若尔盖降札异常高氡温泉区域水中放射性水平，及温泉对周围水环境的放射卫生影响。方法采集温泉区域环境水以及饮用水样品，采用标准GB／T5750—2006和GB／T8538—2008检验方法分析水中总仅、总B放射性和镭一226放射性核素等。结果降札温泉水环境中温泉水及河水中总α、总β放射性以及镭-226含量较高，超出我国《生活饮用水卫生标准》相关限制，温泉区使用的生活饮用水，总α、总β放射性未超过我国《生活饮用水卫生标准》相关限制，可以饮用。结论铀矿开采和温泉水对周围环境有一定污染，建议加强矿场和异常高氡温泉的管理，采取合理的放射防护和污染控制措施。

Radioactive Level of Abnormal High Radon Spring in Jiangzha

Objective To survey the radioactive level of water in area arund Jiafigzha abnormal high levels ra- don spring in Ruoergai and the radiation health in the surrounding environment. Methods The water and drinking water samples in the area were collected to analyze the total α, total β radioactivities and radium -226 radionuclide by using standard test method in GB/T5750 -2006 and GB/T8538 -2008. Results The total α, total β radioactivities and the content of radium - 226 in spring water and river water were higher than the limits set in Drinking water heahh standards, but the total α, total β radioactivities of the drinking water in radon spring area did not exceed the limits set in Drinking water health standards, it is drinkable. Conclu- sion The uranium mining and spring water polluted the surrounding environment. It is necessary to strength- en the management of abnormal high radon springs and uranium mining, and take related protection and pollu- tion control measures.