This paper described generation,characteristics and collection methods of petrochemical enterprises emergency wastewater.

Simulation of water quality for Songhua river water pollution accident using a one-dimensional water quality simulation model based system dynamics.;

Concept of early-warning and emergency response system for sudden water pollution accident;

The sudden water pollution accident have not only caused economic losses,but also brought on society instability and serious destruction of ecological environment.

The water self-clarification ability in the reservoir area is much lower and the risk of the emergency of water pollution is more serious after the accomplishment of water storage in Three Gorges.

This paper combines transboundary hazardous water pollution accidents with field theory, proposes concept of risk field of transboundary hazardous water pollution accidents and study its connotation, composition and characteristics.

Study of rapid determination method of CN~- pollution accident in water;

Study of rapid determination method of S~(2-) pollution accident in water;

We discuss the method of emergency monitoring in pollution accident which happened in water,air,and soil by using GC-MS,on account of emergency pollution accident happened increasedly and the appropriate analysis method hav't been provided.

Investigation and monitoring on the fishery pollution accidents in inland waters;

Based on the statistical data from articles,the characteristics and causes of the drinking water pollution accidents and their damage to the human society are analyzed.

According to the analysis and research of the monitoring data of the water quality of Dongping Lake and the statistical data of pollution sources of Dawen river valley, the results indicate that suspended matters and sand picking trade have been the biggest influence factor on the pollution accidents of Dongping Lake.