污染河流悬沙与镉、铅污染相关性研究  

Study on Correlations of Suspending Sands-Cadmium and-Lead in Polluted River

作　　者：贝荣塔[1,2] 周跃[3] 张军[1] 何敏[1] 

机构地区：[1]昆明理工大学环境科学与工程学院,昆明650093 [2]西南林学院环境科学与工程系,昆明650224 [3]云南财经大学城市管理与资源环境学院,昆明650221

出　　处：《四川环境》2009年第6期29-32,共4页Sichuan Environment

基　　金：973课题"土地利用侵蚀环境效应"专题(2003CB415105-6)之"矿山开采的环境效应"

摘　　要：通过对矿区选矿废水污染的河流水样和悬沙样品进行采样分析,探讨了污染河流悬沙与镉污染、铅污染之间的相关关系。研究结果表明:水中镉含量与悬沙量相关关系,以及铅含量与悬沙量相关关系都是极显著的。经过曲线回归方程拟合,有三个方程较优,即直线方程、二次多项式方程、三次多项式方程,表明了在矿区污染河流中悬沙量与镉含量、悬沙量与铅含量都具有十分密切的正相关关系,通过测定河流悬沙量可以粗略地估算水中镉、铅含量。本研究方法对其他河流类似情况也有较好的借鉴意义。In this paper, based on sampling and analyzing the water and suspending sands from a river polluted by ore-dressing wastewater in a mine area, the correlations of suspending sands-cadmium and suspending sands-lead in polluted river are discussed. The results show that both correlations are significant. By means of curvilinear regression, correlations are fitted with three equations, i.e. , linear equation, quadratic polynomial equation and cubic polynomial equation. It shows close positive correlations of suspending sands-cadmium and suspending sands-lead in polluted river. Therefore, cadmium content and lead content in the water can be estimated roughly by measuring the content of suspending sands in the river. The study method is also available for similar rivers as reference.

关 键 词：悬沙量 镉含量 铅含量 相关性 回归分析 

分 类 号：X522[环境科学与工程—环境工程]