The effective reduction of the non-point source pollution is greatly based on the analysis of the types of main pollutants in initial rainwater runoff and their main influences on water quality, and on the knowledge of the changes of pollutants under the different conditions. In this study, the initial rainwater runoff of four different functional areas like farmland, traffic area, residential business area and industry area in the high-risk tributary area of Dongjiang River was sampled with SCS-CN method, the samples were monitored according t...
