黄河三门峡库区水质评价与演变势分析

采用单因子评价法,依据GB3838 2002 地表水环境质量标准基本项目标准限值 ,以1989～203年水质监测资料,对三门峡库区进出库5个断面水质状况及其演变进行分析评价,结果表明,入库龙门断面水质污染减轻,其余干支流断面水质污染呈加重态势,均为Ⅴ类或劣Ⅴ类水,主要污染物为有机物、铅。水污染防治工作刻不容缓。

Analysis of Water Quality Changing Trend in Region of Sanmenxia Reservoir on the Yellow River

The water quality of inflow and outflow at 5 sections and the changing trend of which were analyzed, based on the data recorded data from 1989 to 2003 and in accordance with the standard GB3838-2002, named "Standard limit value of basic items of environmental surface water quality". It was shown that the water pollution trend at Longmen Section was mitigated, but at the other sections water quality trend were deteriorated and water quality of them were attributed to V or under V type. The major pollutants were organic substance, Pb. So that the water pollution prevention work is necessary and no time to delay.