下辽河平原区辽阳-鞍山地段浅层地下水污染评价

EVALUATION OF SHALLOW GROUNDWATER POLLUTION IN LIAOYANG-ANSHAN SECTION OF LOWER LIAOHE RIVER PLAIN

随着城市规模和城市化进程的扩大与加快,工业化程度的不断提高,区域地表水和地下水受到不同程度的污染,人类赖以生存的淡水资源面临威胁.20世纪90年代以来,我国开始关注农业污染和有机污染的研究工作.结合研究区研究情况,本次评价主要应用单因子污染指数法及综合污染指数法.综合分析了地下水评价的各种方法后,本次评价选择了单指标污染指数评价法和地下水污染综合评价法对该区进行评价.在研究区展开了野外调查,采集了浅层地下水样品110组(其中包括平行样、加标样和监控样合计20组),每个样品测试了35项指标.评价结果表明,研究区67.4%浅层地下水受到不同程度的污染.根据本次评价,基本上反映了研究区地下水污染状况,并为有针对性的治理提供依据.

With the expanded city scale, accelerated urbanization and improved industrialization, regional surface water and groundwater are polluted in varying degrees and freshwater resources for human survival is threatened. Since 1990 s,China has focused on researches about agricultural pollution and organic contamination. Considering the situation in the study area, the evaluation mainly adopts single factor pollution index and comprehensive pollution index methods. After a comprehensive analysis on the various methods of groundwater evaluation, the evaluation selects single pollution index and comprehensive evaluation index of groundwater pollution for the region. The author collects 110 groups of shallow groundwater samples in the study area, and tests 35 indicators for each sample. The evaluation results show that 67.4% of the shallow groundwater are subject to contamination in different degrees, which basically reflects groundwater pollution status and provides the basis for targeted treatment in the study area.