东北地区某化学工业园区地下水污染状况评价与成因分析OACSTPCD

A chemical industrial park represents a significant source of groundwater pollution.To investigate the characteristics and causes of groundwater pollution in a chemical industry park,a total of 23 groundwater samples were collected near the chemical industry park through field investigation,well construction sampling,statistical analysis and other means,and 128 indicators were tested and statistically analyzed,combined with the distribution of enterprises in the park and industry characteristics analysis.The results showed that the groundwater pollution in the park was relatively heavy,and the pollutants had exceeded the boundaries of the park.The main indicators exceeding the standard were trichloroacetaldehyde,cis-1,2-dichloroethane,1,2-trichloroethane,di-n-butyl phthalate,phenol and other organic pollutants.The characteristics of groundwater pollution in the park were directly related to the distribution and industry characteristics of enterprises in the park.It could be determined that the"running,bubbing,dripping and leaking"in the production process of industrial enterprises in the park and the damage of the original underground pipe network in the park are the root causes and main causes of groundwater pollution in the park.