内蒙古岱海水质现状分析与评价

Water Quality Analysis and Assessment of Daihai Lake in Inner Mongolia

岱海是我国北方的一个典型内陆湖,由于流域工农业发展和人口增多,入湖的污染物质增加,根据2004年水质监测结果,岱海全湖属于劣Ⅴ类水质,其中湖水中氯化物、矿化度超标严重,已接近咸水湖标准,此外,湖水中的总氮、总磷、高锰酸盐指数也有不同程度的超标,与90年代相比,湖泊水质呈现出明显的恶化趋势。

Daihai is a typical island lake in the north of China. Because of the industry and agriculture development and the population increase, the pollutants that entered in Daihai Lake was increasing. Monitoring data of the water quality showed that the water quality of the whole lake was inferior to V water standard, both Cl^- and mineralized degree were higher than the standard value. Moreover, TN,TP and CODMn exceeded the standard value in different degree. Compared with the monitoring data of 90＇s, the water quality of Daihai Lake had an obvious tendency to worsen.