摘要
本文简要介绍了Hakanson潜在生态风险指数法,并以当地土壤最高背景值为参比值对漳卫南运河表层沉积物重金属进行了评价。结果表明,漳卫南运河多数河段表层沉积物都受到重金属的中强度污染,具有较高的潜在生态风险。污染最严重的河段是卫运河的塔湾。污染最严重的重金属元素是Cd、Hg,其次是As、Cu、Cr,Zn与Pb相对污染较轻。
The Hakanson ecological risk index method is briefly introduced and applied to assess heavy metals pollution of the surface sediments in the South Zhangwei Canal. The results reveal that most reaches of the canal are heavily polluted. Especially, the Tawan sectin of Weiyun reach of the canal has been severely polluted. The potential risk on ecology is very high. As for the heavy metals, the pollution of Cd and Hg is serious, As, Cu and Cr pollution is moderate, while Zn and Pb pollution is relatively light.
出处
《中国水利水电科学研究院学报》
2005年第2期109-115,共7页
Journal of China Institute of Water Resources and Hydropower Research
基金
国家自然科学基金(50379057)
中国水科院青年科研专项(环集02QN03)资助
关键词
漳卫南运河
沉积物
重金属
评价
South Zhangwei Canal
sediment
heavy metal
assessment
potential ecological risk
