大沽河中下游地区地下水环境特征与污染机理研究

Research on the Groundwater Environment Characteristics and Pollution Mechanism of in the Middle and Lower Reaches of Daguhe River

大沽河中下游地区地下水污染严重,符合地下水Ⅲ类标准的只占4.5%,水体污染有逐年增高的趋势。对本地区的水环境及污染机理研究得出,水文地质条件使污染物容易入渗,农业污染及农村粪便、垃圾是地下水受到广泛污染的主要因素,地下水的过量开采加速了地下水的污染进程。研究提出了控制农业及农村面源污染,发展生态农业,加强农村环境保护及环保基础设施建设等措施。

The groundwater pollution in the middle and lower reaches of the Dagu River was severe, satisfied the groundwater Ⅲ standard only occupied 4. 5%. The pollution of water body was increasing year by year. The reasearch of water environment and pollution mechanism has shown the hydrologic geological conditions in this area made the pollutants infiltrate easily, the agricultural pollution and the rubbishes and feces in countryside were the main reasons for the groundwater pollution. The over exploitation of groundwater accelerated the pollution of groundwater. The research put forward the measures for controlling the agricultural and non-point pollutant, developing ecological agriculture, enhancing the environment protection and constructing infrastructural facilities.