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The petrochemical industry is an accident-prone areas, With the rapid development of China's national economy, the oil and chemical industry increasingly become a pillar industry of the national economy, the chemicals people's lives more and more closely, at the same time, dangerous chemicals goods spill was increasing year by year trend in production during the storage and transportation, environmental and safety issues has become a widespread concern in the world today. More accurate prediction simulation and risk assessment of the consequences of the spill of dangerous chemicals, combined with powerful GIS spatial analysis and dynamic display function, after the accident in a timely manner, quickly, effectively and intuitively dangerous area to make the accident process forecasting and simulation, and analysis and environmental risk assessment of the consequences of an accident can be more accurate calculation of the individual and social risks caused by the accident for the environmental risk assessment of the consequences of the accident, and new sources of danger as the basis to develop appropriate contingency measures; The evaluation provides important quantitative basis. Therefore, research and development \Research won the State 863 resources and environmental technology major projects \Through access to domestic and international literature on simulation and risk assessment of hazardous chemicals spill on the basic principle of the the leak accident diffusion model with risk assessment model, the logical framework of the model system, the use of Fortran as the main programming language, developed a model program, the computer simulation model, and the preparation of a comprehensive set of naming conventions and model data files. On this basis, this paper using ArcGIS Engine component library using VB.net development language as a system, not only to achieve seamless connectivity model library and GIS technology, and the visual presentation of the model data, including the value line drawing and NetCDF file dynamic player. Finally, to the Shanghai Chemical Industry Park phosgene point set environmental risk prediction and evaluation of information support system, for example, a dangerous chemical spill risk prediction and evaluation model and GIS Integration key technical and analytical results, highlights Environmental Prediction Risk Assessment module, visualization module, and model base management module.
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