Based on the analysis of main problem in existing methods for urban air pollution forecasting,a new idea based on Bayesian Network was proposed,with preliminary discussion of technical route as well as key challenges in putting the new idea into practice.

The river pollution dynamic simulation system based on GIS;

Based on environmental monitoring data on the water quality of the rivers in the Yangtze River delta over past years,and combined with the experimental data and the filed investigation,the status quo of river pollution was briefly analyzed,and spatial distribution characteristics and temporal diversifi.

Influence on shallow ground water by chromium in polluted river;

Laboratorial research on clarification of polluted river;

On the basis of reviewing some international experiences on the treatment for polluted rivers as well as analyzing the serious situation of river pollution in China,development of the treatment technologies for organic polluted rivers were introduced.