基于SPSS相关性分析的地下水污染因果关系判定

Causation Judgment of Groundwater Pollution based on SPSS Correlation Analysis

为了查明某地麦田等作物利用地下水灌溉后出现生长缓慢及枯黄死亡等情况的原因,该地环保局对周边地下水井取样监测,对周边污染企业进行了排查。在确认某企业有非法排污行为后,对各监测水井中监测因子之间相关性进行拟合,运用SPSS软件对所有污染水井中含有的排污企业特征污染物因子和超标因子进行了相关性分析。结果表明:在污染地下水监测样品中非法排污企业的特征污染因子与超标因子呈显著相关,从而确认企业非法排污与下游地下水井污染存在因果关系。

In order to find out the cause why the crops grew slowly, withered or died after using groundwater irrigation, the samples of surrounding underground water were collected and the surrounding polluting enterprises were investigated. After confirming that an enterprise discharged pollution illegally, based on the correlation fittings between the two monitoring factors in each monitoring well, the correlations between the characteristic pollutant factors and excessive factors in the pollution water wells were analyzed using SPSS software. The results showed that the characteristic pollutants of illegal sewage enterprise in polluted underground water wells were significantly correlated with the exceeding standard factors, so as to confirm the causation between the illegal sewage and the pollution of the underground water wells.