中文摘要：

为对空气质量的变化进行合理综合的评价,进而分析空气质量的影响因素,选取大气主要污染物二氧化硫、二氧化氮、可吸入颗粒物和一氧化碳为研究因子,利用改进的模糊综合评价方法,将北京市近十年的空气质量进行等级评价并排序。结合空气质量的变化趋势,从北京市能源消费结构变化的角度,得出石油产品的消耗是加大空气污染的主要原因,尤其是煤油、汽油的消耗。

英文摘要：

In order to reasonably and comprehensively evaluate air quaihy, and then analyze the factors affect- ing the air quality, major pollutants of air, such as sulfur dioxide, nitrogen dioxide, particulate matter and carbon monoxide are selected as the research factors. Using the improved fuzzy comprehensive evaluation method, Beijing＇ s air quality in recent ten years is evaluated. Combined with the changes of air quality, and from the perspective of energy consumption structure of Beijing city, this paper concludes that the main reason for increased air pollution is petroleum products consumption, especially the consumption of kerosene and gasoline.