摘要
本文对攀枝花地区金沙江水系沉积物中8个重金属元素的地球化学特征、空间分布特征进行了研究,并应用污染负荷指数法对各重金属的污染程度进行了评价。研究发现,重金属在支流与金沙江交汇点下游处含量高于上游处,重金属污染不严重,属轻度污染。污染程度为:Mn>V>Pb>Zn>As>Cr>Cu>Co。污染较严重的是攀钢冶金区、攀钢选矿区、攀钢采矿区以及攀钢尾矿坝。
This paper studies the geochemical characteristics and spatial distribution of 8 heavy metals in Jinsha river sediments, and assesses the pollution degree by Pollution Load Index (PLI) . The study shows that the distribution characteristics of heavy metals are completely similar, that the river has certainly self-purification capacity.The pollution degree is Mn>V>Pb>Zn>As>Cr>Cu>Co.The most pollution places are the areas of smelting,milling,mining and tailing of Panzhihua Iron & Steel Co.
出处
《四川环境》
2004年第3期64-67,共4页
Sichuan Environment
关键词
沉积物
重金属
污染负荷指数法
污染评价
金沙江
Sediment
heavy metal
Pollution Load Index (PLI)
pollution assessment
Jinsha river
