摘要
利用2014~2017年四川省21个市(州)政府所在地的集中式饮用水水源地水中总α、总β活度浓度监测数据,采用spearman秩相关系数法分析了4年来四川省21个市(州)集中式饮用水水源地水中总α和总β活度浓度水平与变化趋势。结果表明:4年来,全省21个市(州)饮用水水源地水中的总α和总β活度浓度均满足国家相关标准的限值要求,总α和总β活度浓度呈现上升趋势的监测断面(点)相对较多。
According to the monitoring data of total α and total β activity concentration in the centralized drinking water sources in 21 cities( states) in Sichuan Province from 2014 to 2017,level and variation trend of total α and total β activity concentration in centralized drinking water sources in 21 cities( states) in Sichuan Province in the past four years are analyzed spearman rank correlation coefficient method. The results show that in the past four years,the total α and total β activity concentrations in drinking water sources of 21 cities( states) in the province all meet the limit requirements of the relevant national standards,and the monitoring sections( points) are relatively more where the total α and total β activity concentrations show an upward trend.
作者
庞荣华
PANG Rong-hua(Sichuan Management & Monitoring Center Station of Radioactive Environment, Chengdu 611139, China)
出处
《四川环境》
2018年第2期131-138,共8页
Sichuan Environment
关键词
集中式饮用水水源地
总α、总β活度浓度
变化趋势
秩相关系数
Centralized drinking water sources
total α, total β Activity Concentration
variation trend
rank correlationcoefficient