The Study on the Spatial Variation of Small ZheGao River Pollution

Both of the direct emissions of rural domestic sewage and farmland non-point pollution drew more and more attention by people.The Small Zhegao River in the northeast of Chaohu Lake as the studying object,by sampling in the spot,through tested and analysis,the main pollutants of the river were COD,total nitrogen and phosphorus,and each pollutant became lower along the river.