Study On Groundwater Pollution Assessment And Classification Of Typical Gas Stations In Beijing City

In recent years, Beijing city has a large number of gas station, gas station leakage caused by pollution accidents have also occurred, Beijing city has become a big potential of groundwater pollution, the ecological environment and human health caused great threat.The gas station has high risk, complexity, concealment, great harm and difficult recovery characteristics of groundwater pollution. Therefore, it is very important to carry on the management department to carry on the scientific supervision of the management department to ensure the safety of the groundwater, which is the research of the underground water pollution assessment, the risk assessment of groundwater pollution and the prevention and control of the gas station.Based on the sufficient research collection area geographical and geological environmental data, combining with the typical investigation and survey results of groundwater quality assessment of gas station, station of quality situation and pollution of groundwater in a typical gas, groundwater vulnerability assessment results of groundwater pollution risk assessment based on the gas station, gas station classification preliminary proposals for prevention and control measures. The main research results are as follows:1. The assessment of the typical gas stations in the study area of the status quo and pollution of groundwater quality, and the cause of pollution analysis.2. Based on the groundwater vulnerability, using ARCGIS spatial analysis functions, the typical research area gas station of groundwater pollution risk assessment of groundwater pollution, divided into high risk areas, medium risk area and low risk area of gas station.3. According to the risk classification of groundwater pollution in the area where the gas station is located, a preliminary suggestion is put forward for the prevention and control of typical gas stations in the study area. Proposes to establish and perfect the water monitoring system, improve groundwater environment supervision level, increase the groundwater environmental protection law enforcement, to carry out the restoration of groundwater pollution prevention and control measures.