“十二五”期间西山区国控入滇河流水环境质量状况分析与评价

Analysis and Evaluation of the State-controlled Water Quality of the Rivers Flowing intoDianchi Lake in Xishan District during the 12th Five-year Plan Period

以"十二五"期间西山区国控入滇河流监测数据为基础,采用综合污染指数法对西山区国控入滇河流水环境质量进行分析,分析结果表明:与"十一五"相比,"十二五"期间国控入滇河流水质明显好转,河流截污效果显著;"十二五"期间劣Ⅴ类水体居多,均未达到各水体水质保护目标要求,5条河流均存在不同程度的污染。提出了建议对策。

Based on the monitoring data of the State-controlled rivers of Dianchi Lake in Xishan District during the 12th five-year plan period,the trend of the water quality of the rivers was analyzed by the comprehensive pollution index method.The analysis results showed that the water quality of the State-controlled rivers in the 12th five-year plan period has improved significantly,and the river decontamination effect was significant.However,most of the rivers remained less than the fifth class,which could not achieve the water protection goals.Various pollution degrees were found among five rivers.Countermeasures were pointed out.