某市农村生活饮用水水质主因子分析

目的通过主因子分析对某市农村生活饮用水的污染特征进行研究。方法从原始数据的相关矩阵出发,提取占总方差85%以上的主因子,对主因子及其空间变化规律做出合理的解释。结果利用SPSS13.0软件分析可知前6个主因子累计方差贡献率为89.703%,分别对应的污染指标为铅、砷和有机物污染、锰和营养盐污染、铁污染、无机盐污染、砷污染、铜污染。结论富营养盐和有机物污染因子、重金属污染因子、砷污染因子和无机盐污染因子是该市农村生活饮用水水质污染的几个主要因子;工业排放和生活污水是其主要污染源。

Principal Factor Analysis on Water Quality of Rural Drinking Water in a City

Objective]To study the pollution characteristics of the rural drinking water by the principal factor analysis method.Methods]Based on the correlation matrix of the original data,the principal factors which the total variance was more than 85% were selected,and the principal factor and its spatial variation law were explained reasonably.Results]By using the SPSS13.0 software,the analysis results showed that the cumulative variance contribution rate of the first six principal factors was 89.703%,which the ...