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对2005年11月12日中石油吉林石化分公司双苯厂发生爆炸事故所引起的松花江沿岸某城市浅层地下水污染状况进行了调查研究。结果表明,研究区浅层地下水中,除1,2-二氯丙烷、氯苯、苯和乙苯浓度在个别采样井点检出超过《地下水质量标准》三类水质标准外,其它各有机污染物浓度都普遍较低;城区浅层地下水有机污染程度远远重于城郊,且分布在城区东部化工厂一带的工业区,个别地段地下水有机污染程度不容乐观。因此,松花江水与地下水的积极交替带仅限于几百米,研究区内浅层地下水的有机污染是历史因素和人为活动共同作用的结果。
Investigation and research on the status of shallow groundwater pollution in a city along the Songhua River caused by the explosion accident at the naphthalene plant of PetroChina Jilin Petrochemical Company on November 12, 2005. The results showed that in the shallow groundwater of the study area, except for the concentration of 1,2-dichloropropane, chlorobenzene, benzene and ethylbenzene, which exceeded the standard of three categories of groundwater quality standards in individual sampling wells, all other organic pollutants The concentrations of pollutants are generally low. The degree of organic pollution in shallow groundwater in urban areas is much higher than that in suburbs, and it is distributed in the industrial area along the east chemical plant in urban area. The degree of organic pollution in groundwater in individual areas is not optimistic. Therefore, the active alternation zone of Songhua River water and groundwater is limited to a few hundred meters. The organic pollution of shallow groundwater in the study area is the result of the combination of historical factors and human activities.