粤北铀矿山环境水中天然铀、天然钍及^(226)Ra水平调查  

Investigation of U,Th,^(226)Ra Levels in Environmental Water from Uranium Mine Areas of Northern Guangdong

作　　者：覃连敬[1] 梁贵渊 张衍津 陈文涛[1] 吴桂标[1] 

机构地区：[1]广东省环境辐射监测中心,广州510300

出　　处：《辐射防护通讯》2012年第1期39-41,共3页Radiation Protection Bulletin

摘　　要：2011年,分丰水期和枯水期2次对粤北3个铀矿山所在地区环境水体进行了天然铀、天然钍、226Ra等放射性核素水平的调查测量。饮用水(非受纳水体)采样点11个,样品22个;溪水(受纳水体)采样点10个,样品20个。调查结果表明,饮用水(山泉水)中天然铀、天然钍和226Ra的平均浓度分别为0.74μg/L、0.53μg/L和17.0 mBq/L;溪水中分别为23.4μg/L、0.43μg/L和25.0 mBq/L。Naturally occurring radionuclides,such as U,Th,226Ra,in environmental water from three uranium mining areas of northern Guangdong were measured,respectively,using samples taken in wet and dry seasons in 2011.22 drinking water samples（non receiving water） from 11 sampling points,and 20 creek water samples（receiving water） from 10 sampling points were collected.The results shows that the concentrations of U,Th and 226Ra in drinking water（mineral water） are,on average,0.74 μg/L,0.53 μg/L and 17.0 mBq/L,respectively;the concentrations of U,Th and 226Ra in creek water are,on average,23.4 μg/L,0.43 μg/L and 25.0 mBq/L.

关 键 词：铀矿山 天然铀 天然钍 226RA 

分 类 号：TL751[核科学技术—辐射防护及环境保护]