概括地介绍了我国大气环境质量状况。通过需求分析，进行了大气环境质量报告系统的功能描述，研究了大气扩散模型，实现了基于电子地图的大气环境质量报告系统，可以满足不断变化的用户需求。%The thesis first summarizes the current conditions of air quality in China. Based on need analysis, the function description of Air Quality Report System is given. Air diffusion modes is researched. The air quality report system based on electronic map is realized. It can satisfy constantly changing need from the user and accomplish the design goal.
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