Smart pro-environment is the concept of combining Internet technology with environmental informatization, and it is the extension and development of the concept of "digital pro-environment". With "strengthen informatization of environmental protection" as development goal, computer technology based on database and with GIS as the core, provides support for the visualization of query, analysis and management of spatial data, which can better strengthen the management of pro-environment informationalized measurement, promote automatic monitoring work of key pollution sources, improve environmental emergency response capacity, achieve environmental pollution emergency warning and prediction, and provide sound basis for environmental enforcement.

Water pollution traceability model: use model to timely predict pollution source’s characteristics, so as to speculate the concentration-space-time change process and the total pass amount of river characteristic pollutants.

Water pollution diffusion model: using the model to timely predict pollution source’s characteristics, so as to speculate the concentration-space-time change process and the total pass amount of river characteristic pollutants. Obtaining the characteristic pollutant space-time change can help the further warning to potential exceeding area downstream.