焦作地区浅层地下水系统污染源解析

通过对焦作地区浅层地下水全面监测与分析,确定88个采样点,选取硝酸盐氮、氯化物、硫酸盐、硬度等8个典型污染指标,使用多元统计分析方法对浅层地下水污染源进行定性和定量分析。结果表明,研究区主要存在3种污染特征源,分别为化工源、机械加工源和农业源,其对整个区域浅层地下水的污染贡献率分别为53.81%、30.34%和15.85%,主要污染特征源集中分布于焦作西北工业区。

Apportionment of Pollution Source of Shallow Groundwater System in Jiaozuo

Together 88 sampling points and 8 main water pollution indexes including nitrate nitrogen, chloride, sulfate and hardness and so on were selected to analyze shallow groundwater in Jiaozuo area based on comprehensive monitoring. The source apportionment of shallow groundwater pollution was qualitatively and quantitatively analyzed with multivariate statistical analysis method. The results show that there are mainly three kinds of pollution characteristic sources including chemical industry sources, mechanical processing sources and agricultural sources. Their contribution rates to shallow groundwater pollution of the whole area are 53.81%, 30.34% and 15.85% respectively. The main characteristic pollution sources are clustered in northwest industrial zone of Jiaozuo.