华北地区某加油站地下水土污染调查研究

加油站油罐渗漏而污染地下水已成为全球性的问题。通过对华北地区某加油站及其附近区域地下水和土壤中特征污染物现状含量调查,结果表明:污染物透过包气带后,进入到地下水中造成了加油站场地内的浅层地下水及土壤的污染。浅层地下水污染范围主要分布在加油站场区内;土壤污染范围主要分布在以泄露点中心为圆心5.0m为半径的圆形,向下延伸约15m的柱状范围。通过对调查区地下水和土壤污染的风险评价得知,场地浅层地下水及土壤均超出了人体健康风险水平的上限,急需对污染场地的水土进行治理。

Investigation of soil contaminated groundwater in a gas station in North China

Contamination of ground water has become a global problem because of the leakage of oil tanks in gas stations. Through the investigation of the present situation of the groundwater and soil characteristics of the groundwater and soil in a gas station in North china. The results showed that the pollution of the shallow groundwater and soil in the gas station was caused by the contamination of the air through the aeration zone. Shallow groundwater pollution are mainly distributed in the gas station in the field; range of soil pollution is mainly distributed in the relief center point as the center of a circle of 5.0m and the radius of the circle and extends downward column range of about 15m. According to the risk assessment of groundwater and soil pollution in the survey area, the shallow groundwater and soil in the area are beyond the upper limit of human health risk level.