Evaluation and Analysis of Groundwater Pollution in Groundwater Source and Replenishment Area of Yicheng District
Human activities have made serious impact on the groundwater environment.Taking the groundwater source replenishment area in Yicheng District as an example,the groundwater in the area is evaluated and analyzed.The water quality evaluation and pollution status evaluation are adopted,and the pollution grading map of the over-standard factors is drawn by ArcGIS.The results show that there are 37 groups of unpolluted water samples,accounting for 35.24％of the total water samples.68 groups of polluted water samples,accounting for 64.76％of the total water samples,and the main over-standard factors are iron,manganese and ammonia nitrogen.The main causes of pollution include:the discharge of industrial waste,the excessive use of fertilizers and pesticides in agriculture,the random stacking and discharge of household garbage and other pollution.
underground water supply area of Yicheng Districtwater quality assessmentpollution status assessment
NETL
NSTL
万方数据
维普
