基于主成分分析法的伊宁市饮用水源地水质评价

Water Quality Evaluation of Drinking Water Sources in Yining City Based on Principal Component Analysis

本文运用主成分分析法(PCA)对2018年度伊宁市饮用水源地地下水进行了水质评价研究,并使用R3.5.1统计软件的"vegan"程序包对数据进行相关处理.通过对新的综合指标和水质指标月变化量进行分析,结果表明:前3个主成分综合携带了全部信息的76.05%;伊宁市饮用水源地地下水的主要污染因子为总硬度、硝酸盐、砷和硫酸盐;季节和天气状况是影响伊宁市饮用水源地地下水水质波动的主要原因.

This paper evaluates the groundwater quality of drinking water sources in Yining City in 2018 by principal component analysis(PCA).Data were treated using the"vegan"program package of R3.5.1 statistical software.Analysis on monthly variation of new composite indicator and water quality indicator shows that:the first 3 principal components carry 76.05%of the complete information;the main groundwater pollution factors of drinking water sources in Yining are total hardness,nitrate,arsenic and sulfate;season and weather conditions are main causes of their groundwater quality fluctuation.