确定区域环境污染成因——HCA-PCA法

把系统聚类分析(简称HCA-hierachical cluster analysis) 和主成分分析方法(简称PCA-Principal Component Analysis)有机结合,从给定的"样品-指标"数据矩阵出发,利用HCA科学判定区域环境污染的类型,然后根据不同的类型利用PCA方法确定首要污染因子,针对首要污染因子,对各个污染途径进行评估,计算出各途径的污染分担率,从而确定区域污染成因.并对其原理、计算方法、特点作出分析和讨论,同时以某城镇水环境为例进行了计算示范.经证实该方法在确定区域环境污染成因,制定区域污染防治措施方面有重要的意义.

To Identify the Cause of Pollution——HCA-PCA Method

A new model combining HCA(hierachical cluster analysis) with PCA(Principal Component Analysis),which was called HCA-PCA to use to identify the cause of pollution,was presented in this paper.First,it used hierachical cluster analysis to definite the class of pollution from the matrix of sample and norm;second,it used Principal Component Analysis to definite the key pollution factor based the pollution class;then,it evaluated pollution channel according to the key pollution factor,and calculated each contribution to To Identify the Cause of Pollution.Fundamental principles,calculating methods and characteristics of the model are also discussed.It is approved value of Identifying the cause of pollution and controlling of pollution.