湖北地区地表水中总α、总β放射性分布特征研究  

Distribution of Gross α and Gross β Radioactivity in Surface Water of the Area of Hubei

作　　者：罗宇[1] 董冲 杨亚新[3] 张叶[1] 

机构地区：[1]东华理工大学,江西南昌330013 [2]湖北省核工业地质局,湖北孝感432100 [3]东华理工大学教育部核技术应用工程研究中心,江西南昌330013

出　　处：《东华理工大学学报（自然科学版）》2016年第1期48-52,共5页Journal of East China University of Technology(Natural Science)

基　　金：国家自然科学基金项目(41174089)

摘　　要：采集湖北地区的22个地表水水样,采用蒸发法,测量水样中总α、总β放射性水平,并依据相关标准,对测量数据进行了分析研究。研究结果表明,枯水期水样,总α、总β放射性水平分别为(0.008±0.007)^(0.058±0.009)Bq/L、(0.017±0.003)^(0.312±0.024)Bq/L;丰水期水样,总α、总β放射性水平分别为(0.011±0.006)^(0.037±0.016)Bq/L、(0.103±0.027)^(0.389±0.082)Bq/L。成人饮用监测水样所致年有效剂量在0.006~0.022 m Sv/a,远低于世界卫生组织推荐值0.1 m Sv/a;工作区地区地表水在枯水期和丰水期的放射性水平均未超过国家生活饮用水卫生标准限值。所测地表水不用采取任何降低其中放射性污染物的措施就可作为饮用水水源。22 surface water samples of the area of Hubei were collected. The gross α and gross β radioactivity levels of the samples were measured by using the evaporation method,and the data was analyzed in accordance with the relevant standards.（ 1） The samples of dry season,the gross α and gross β radioactivity levels are 0. 008 ±0. 007 ～ 0. 058 ± 0. 009 Bq / L,0. 017 ± 0. 003 ～ 0. 312 ± 0. 024 Bq / L,respectively; The samples of wet season,the gross α and gross β radioactivity levels are 0. 011 ± 0. 006 ～ 0. 037 ± 0. 016 Bq / L,0. 103 ±0. 027 ～ 0. 389 ± 0. 082 Bq / L,respectively.（ 2） Annual effective doses range from 0. 006 to 0. 022 m Sv / a by drinking the measured water. Annual effective doses are far below 0. 1 m Sv / a which is a limiting value recommended by the World Health Organization; The surface water radioactivity levels in the dry season and wet season are in line with the national standards. Therefore,the measured surface water without taking any measures to mitigate radioactive contaminants can be used as drinking water sources.

关 键 词：地表水 总α 总β 丰水期 枯水期 

分 类 号：X591[环境科学与工程—环境工程]