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为掌握水源地地下水的变化趋势,根据郑州市沿黄地区地下水源地的水文地质条件,对该区约100m和300m深度的地下水水质进行化验和取样分析,采用标准指数法研究了源水水质超标的项目,并采用综合污染指数法综合评价了水质超标项目。结果表明,郑州市沿黄地区地下水源地水化学动态基本稳定,自西向东100m左右的浅层地下水的铁、锰含量较高,表明该区域浅层地下水已遭到一定程度的污染,但总体状况良好;自西向东300m左右的深层地下水铁、锰含量变化基本呈上升趋势,但区域地下水整体状况较好,是郑州市供水的安全水源地。
According to the hydrogeological conditions of the groundwater sources along the Yellow River in Zhengzhou City, groundwater quality at about 100m and 300m in the area was tested and sampled for analysis. The standard index method was used to study the water quality of the source water exceeded the standard Of the project, and the comprehensive pollution index method comprehensive evaluation of water quality projects. The results show that the hydrochemical dynamics of the groundwater sources in the areas along the Yellow River in Zhengzhou are basically stable. The shallow groundwater of about 100 meters from west to east has a high content of iron and manganese, indicating that shallow groundwater in the area has been polluted to a certain extent. However, In good condition, the content of iron in the deep groundwater around 300m from west to east is basically on the rise, but the overall groundwater in the area is in good condition and is a safe water source for water supply in Zhengzhou City.