贵州省重安江干流水环境质量变化趋势分析

Analysis on Water Quality Tendency Variation in Chonganjiang River Guizhou Province

通过系统分析2011-2017年重安江干流水质的变化趋势,结合流域污染源分布情况,分析了造成重安江干流水污染的主要成因。结果表明:重安江流域水环境质量得到明显改善,总磷、氟化物和氨氮等主要污染物逐年下降,主要污染集中在吴家桥至凤山桥边断面,2017年重安江干流主要污染物为总磷。

Based on the analysis of the change trend of water environmental quality in the main stream of the Chonganjiang River from 2011 to 2017,the main causes of water pollution in the main stream of the Chonganjiang river are summarized.The results showed that the ecological environment of the Chonganjiang River was improved obviously.The main characteristic pollutants such as total phosphorus,fluoride and ammonia nitrogen were reduced year by year.The main pollution is concentrated from Wujiaqiao to Fengshanqiao.Total phosphorus was the main pollutant in Chonganjiang river in 2017.