摘要
依据《生活饮用水标准检验方法放射性指标》(GB/T 5750.13-2006)对淄博部分地区地下水总α、总β放射性活度浓度进行了检测,并参考世界卫生组织《饮用水水质准则》(第四版)进行由饮水所致居民内照射剂量估算可知:15个地下水样品总α活度浓度范围为0.017~0.215 Bq/L,均值为0.079 Bq/L;总β活度浓度范围为0.043~0.424 Bq/L,均值为0.110 Bq/L,总放射性活度浓度均不超过《生活饮用水卫生标准》(GB 5749-2006)总放射性指导值。GW2、GW14和GW15年有效剂量估算值超过个人剂量标准0.1 mSv/a,应进一步确定放射性核素种类及浓度,对地下水开展持续有效的水质监测,掌握地下水水质动态变化,将居民饮水纳入城镇供水管网以保障饮水安全。
Grossαandβradioactivity concentrations were measured according to Standard Examination Methods for Drinking Water-Radiological Parameters(GB/T 5750.13-2006)in groundwater samples in partial areas of Zibo,and the residents’internal exposure dose caused by drinking water was estimated refer to Guidelines for Drinking water Quality(fourth edition)published by WHO.The grossαactivity concentrations in fifteen groundwater samples were in the range of 0.017 to 0.215 Bq/L with an average values of 0.079 Bq/L,and the range of grossβactivity concentrations were 0.043 to 0.424 Bq/L with an average values of 0.110 Bq/L.The gross radioactivity concentrations of all groundwater samples were below the guideline values recommended by Standards for Drinking Water Quality(GB 5749-2006).The certainty of radionuclides’kinds and concentrations should be further undertaken for the situation where annual effective dose estimation values of GW2,GW14 and GW15 were higher than individual dose criterion 0.1 mSv/a was exist.Persistent and efficientmonitoring of groundwater quality should be carried out for mastering the dynamic variation of groundwater quality,and the residents’drinking water should be integrated into urban water supply network to ensure drinking water safety.
作者
亓恒振
吕冬梅
QI Heng-zhen;LV Dong-mei(Zibo Eco-environment Monitoring Centre of Shandong Province,Shandong 255022,China)
出处
《地下水》
2019年第6期18-20,共3页
Ground water
