煤炭污染型河流底质污染现状分析——以北盘江贵州段为例

为了解北盘江污染现状，在北盘江拖长江段以及干流段设置9个采样监测点，对其底泥的理化性质和无机性质指标进行了监测分析。结果表明，底泥中营养物浓度处于中等污染水平，即低影响线和重大影响线之间，底泥中营养物浓度最低的为关岭县河段，在低影响线之下。底泥重金属含量总体为尚清洁水平，其中铁含量最高，砷次之，氟最低。

Sediment Pollution Status Analysis of Coal-polluted River: Taking Guizhou Section of Beipan River as an Example

Taking the Tuochangjiang River and Beipanjiang River as the major research subject, the paper reveals the pollution of Beipanjiang River. , 9 sampling sites were set on Tuochangjiang River and Beipanjiang River, and the physicochemical property of sludge in the river was analyzed. The results show that the concentration of nutrients in sediment are in middle level, among all the 9 sampling sites, the concentration of nutrients in sediment in Guanling Reach is in the lowest level, which is below the low affected limit. The concentration of heavy metals in sediment are low, and the concentration of Fe is in highest level, As is lower, and F is lowest.