CAJ | 학술논문

大沽河流域监测数据显示：2012年，大沽河干流水质良好，功能区达标率为100％，多数断面综合污染指数呈丰水期＞枯水期＞平水期。大沽河主要支流水质总体为轻度污染，主要污染指标为五日生化需氧量、化学需氧量、氟化物，功能区达标率为68.8％，从污染较重河流（桃源河、云溪河、洙河下游）不同水期综合污染指数来看，桃源河和洙河下游呈丰水期！平水期！枯水期；云溪河由于贯穿胶州城区，受农业面源、降水因素影响较小，呈枯水期！丰水期！平水期。2006-2012年，大沽河干流水质基本保持稳定，主要支流水质呈改善趋势。
대고하류역감측수거현시：2012년，대고하간류수질량호，공능구체표솔위100％，다수단면종합오염지수정봉수기＞고수기＞평수기。대고하주요지류수질총체위경도오염，주요오염지표위오일생화수양량、화학수양량、불화물，공능구체표솔위68.8％，종오염교중하류（도원하、운계하、수하하유）불동수기종합오염지수래간，도원하화수하하유정봉수기！평수기！고수기；운계하유우관천효주성구，수농업면원、강수인소영향교소，정고수기！봉수기！평수기。2006-2012년，대고하간류수질기본보지은정，주요지류수질정개선추세。
The monitoring data of water quality of Dagu River showed that the water quality of the mainstream of Dagu River in 2012 was generally good,and the compliance rate of functional zone was 100%,the comprehensive pollution index of most monitoring sections had the trend for wet season >dry season >normal season.The water quality of the main branches of Dagu River was at the light pollution level,and the pollutants were biochemical oxy-gen demand,chemical oxygen demand,fluoride.The compliance rate of functional zone was 68.8%,and from the comprehensive index of different water period for the rivers which were heavily polluted,Taoyuan River and the downstream of Zhu River had the pollution trend for wet season>normal season>dry season.Yunxi River flowed through the city area of Jiaozhou,which was lightly influenced by agricultural area-source pollution and precipita-tion,and had the trend for dry season >wet season>season.From 2006 to 2012,the water quality of mainstream of Dagu River was kept steadily,and the water quality of the main branches of Dagu River has been improving.