歇马镇工业区土壤镉污染现状初探

在工厂排水渠渠道一侧平行于排水渠方向,按距排污口100 m、200 m、300 m处选点采土样,用ICP-OES对土样全镉量进行测定,并探究点源镉污染受土壤pH值及距污染源距离的影响.研究表明:该区土壤受到了一定程度的镉污染,且其污染程度与离排污口的距离成负相关.同时采样分析了该镇各土地利用类型的面源污染状况.

Preliminary Study of the Soil Cadmium Pollution in Industrial District of Xiema Town

The authors chose the site of soil samples which parallel the side of drainage channels in the factory and are away from the sewage outfall by 100 meters, 200 meters and 300 meters. The total cadmium content of soil has been determined by ICP-OES. Meanwhile, the thesis explores the effect of soil pH and the distance from pollutant source on the point sources cadmium pollution. The results show that the soil in this area is contaminated by cadmium and the pollution degree would increase with the distance from pollutant source. And the situation of Non-point pollution in different land use types of this district by sampiing is also analyzed.