聊城古云地区地下水环境质量评价与分析

Environmental Quality Assessment and Analysis on Groundwater of Guyun Town,Liaocheng City

通过对古云地区地下水开发利用调查和污染取样分析,结合实际情况选取了15项评价因子,采用内梅罗综合指数法按照地下水质量评价标准(GB/T 14848-93)进行水质评价。结果表明:古云地区浅层地下水已受到较为严重的污染,全区均为Ⅳ级水和Ⅴ级水,且二者所占比例为Ⅳ级水占25%,Ⅴ级水占75%。污染物以石油类、酚类为主,该类污染物主要分布在西部石油开采区和金堤河沿线。部分样品中砷污染也较为严重,主要分布于古云地区中部。

According to the investigation about development and utihzation of groundwater and analysis of pollution,15 evaluation factors were selected,combined with the actual situation.We adopted Nemerow integrated index method in accordance with the groundwater quality standard （GB / T 14848-93） to assess water quality.The results showed that Guyun shallow groundwater had been seriously polluted.The water quality was Ⅳ grade and Ⅴ grade,which accounted for 25％ and 75％,respectively.The main pollutants were petroleum and phenols,which were mainly distributed in the western oil mining area and along the Jindi River.Part of the samples of arsenic pollution were also serious,which were mainly distributed in the central of Guyun.