月河流域水质变化现状及原因分析

Analysis of Water Quality Change and Cause in Yuehe River Basin

分析月河(汉江支流)流域水质现状和污染原因。结果表明:月河上游(蒲溪镇以上流域)的水环境质量综合评价指数均为0.850,水环境质量较好,而付家河月河汇合处的水环境质量综合评价指数为2.321,指数较高,工业废水、城镇居民生活污水以及农业生产的非点源污染随雨水输入河流,导致下游水环境污染较为严重。沿岸的工业废水和居民生活污水应当处理达标后排放,同时要将河道内的垃圾清理干净以改善河流的水质概况。

The trend of water quality change and the causes of pollution in Yuehe River(a tributary of the Yangtze River)were studied by means of comprehensive evaluation.The results showed that the comprehensive evaluation index of water environment quality in the upper reaches of Yuehe River(above Puxi Town)was 0.850,showing good water environment quality.The comprehensive evaluation index of water environment quality at the confluence of Yuehe River in Fujia River was 2.321,with a high index.The industrial wastewater,domestic sewage of urban residents and non-point source pollution of agricultural production entered into the river with rainwater,resulting in a downward trend of water resource quality in the downstream of Yuehe River.The industrial waste water and domestic sewage along the bank shall be treated and discharged after reaching the standard,and the garbage in the river course shall be cleaned up at the same time,so as to improve the water quality profile of the river.