沁河晋城段河流水质评价

基于长期的水质监测数据,应用单项污染指数法和综合污染指数法,对沁河晋城段的枯水期、丰水期、平水期水质进行了评价,得出了各断面河流监测项目所属的地表水环境质量级别。结果显示,除润城断面的氨氮和总氮出现超标状况,满足不了地表水环境质量标准Ⅲ类水体功能要求外,其他监测断面的所有监测因子都能满足相应的水体功能要求。总体来看,须对沁河晋城段中的氨氮等污染物加以严格控制。该水质评价为晋城市地表水资源的科学管理提供了依据。

Evaluation on River Water Quality of Qinhe River's Jincheng Section

Based on long-term water quality monitoring data, applying individual pollution index method and the integrated pollution index method, his paper evaluates the water qualities in dry season, wet period and normal water season in Qinhe River of Jincheng Reach, and obtains the quality levels of surface water environment of river monitoring projects in different sections. The results show that except Runcheng section’s ammonia and total nitrogen over the standard and can’t meet the standards of type Ⅲ functional requirements of surface water environmental quality, all monitoring factors of other monitoring sections can meet the functional requirements of the water. The NH3-N and other pollutants in Qinhe River’s Jincheng Section should been controlled strictly, the water quality evaluation provides a basis for scientific management of surface water resources of Jincheng City.