淮河流域(山东段)南部平原区浅层地下水有机污染特征

On organic pollution of shallow groundwater in southern plain of Huaihe River Basin(Shandong section)

随着经济的发展,淮河流域山东段南部平原区地下水污染、环境问题日趋严重。就该区浅层地下水有机污染特征进行了总结,并就污染源、浅层地下水及表层土壤有机污染现状、河流对两侧浅层地下水的影响及污染途径等问题进行了研究。结果表明,该地区浅层地下水中有机组分检出率较低,有机组分中仅有个别指标水质超标,研究区浅层地下水有机污染程度整体较轻。平面分布特征上,有机物检出点及污染严重点主要集中在城镇所在地及周边地区、河道两侧及工矿企业密集区;在垂向分布特征上,浅层地下水的有机污染程度较深层地下水严重,随着深度的增加,污染程度逐渐减弱。

In recent years, groundwater pollution and other environmental problems became increasingly serious in the southern plain of the Huaihe River Basin （ Shandong section） as the development of economy. The authors summarized the shallow groundwater pollution characteristics in the study area, and studies on the issues of pollution sources, organic pollution status of shallow groundwater and surface soil, the impact and polluting paths of the river to the shallow groundwater of riversides. Research showed that the detection rate of organic pollutants in the shallow groundwater of this region was rather low, only several organic pollutants exceeded the standards ; the overall shallow groundwater organic pollution environment was mild. Horizontal distribution maps showed that the samples which detected organic pollutants were mainly concentrated in the urban residental and its surrounding areas, the river sides, and the industrial mining areas. Vertically, the organic pollution status of the shallow groundwater was worse than that in the deep groundwater. As the increase of the depth, the pollution level decreased gradually.