摘要
根据吉林省地下水化学背景值调查背景值确定出现的水化学异常问题,应用数理统计原理,并结合水文地球化学特征,讨论了判定和处理异常值方法的科学性与适用性。
On the basis of statistical theory, the Laplace integral function, the Thomson method, etc. are used for the treatment of the chemical abonormalities according to the problem found during the research on the chemical background values in groundwater in Jilin province. It is proved to be suitable in practice. At the sampling sites contaminated by man-made pollution, the nitrate (tool concentration 20%, sensitive index) is used to measure whether the man-made pollution based upon the hydrogeochemical conditions in this area. Meanwhile, the variation in the aquatic chemical fields should be considered to distinguish the man-made pollution from the geochemical abnormalities. And the sites contaminated by man-made pollution should be excluded reservedly according to the change of the aquatic chemical fields.
出处
《吉林地质》
1991年第2期75-79,共5页
Jilin Geology
