徐州市地表水体底泥重金属污染特征研究

文章对徐州市地表水体底泥重金属的污染特征进行了研究。对流经徐州市的四条主要河流和云龙湖的55个底泥采样点的重金属含量进行了测试,并采用单因子污染指数法进行了评价。结果表明,徐州市地表水体除云龙湖之外均不同程度地受到了重金属元素的污染。荆马河污染最为严重,其次是奎河、故黄河、京杭大运河。云龙湖的第五个采样点也受到了Hg的污染。污染元素的种类及污染程度与徐州市的产业结构密切相关。

Research on pollution by heavy metals in bottom sedinments of surface water, Xuzhou

Heavy metals in waste water may pollute the bottom sediments by various chemical and physical actions. We studied the heavy metal pollution of surface water, Xuzhou. The pollution intensity of the bottom sediments has been assessed based on the single_factor contaminant index. The results showed that except Yunlong Lake, the bottom sediments of surface water in Xuzhou was contaminated severely by heavy metals in different degree. Jinma River was contaminated most serious, and then it was Kui River and Abandoned Yellow River and the Jinghang Canal. The fifth Monitoring dot in Yunlong Lake was also contaminated by Hg. The contamination degree and element was related with industry structure in Xuzhou.