【摘要】 本文以2001～2010年都江堰市大气环境监测数据为依据,采用综合污染指数法分析了都江堰市近10年环境空气质量的现状、变化趋势及影响因素,并分析比较2008年地震前后空气污染物的变化。结果表明:都江堰市的空气综合污染指数较低(1<P≤2),环境空气质量总体状况良好。空气主要污染物由NO2转变为PM10。由于"5.12"特大地震及灾后重建工作的全面开展,空气污染物浓度在2008～2009年出现大幅度增长,空气质量较差,但随着重建工作的逐步完成,到2010年,城市环境空气质量已基本恢复到震前水平。更多还原

【Abstract】 In this paper,based on the monitoring data during 2001~2010,the air quality status,its changing trends and affecting factors in the last decade in Dujiangyan City were analyzed adopting the method of comprehensive pollution index.The air pollutants before and after the Earthquake in May 12,2008 were analyzed and compared as well.The results show that the air comprehensive pollution index was low(1<P≤2) and the environmental air quality was generally good.Instead of NO2,the PM10 had become the major air pollutant.The air pollutants concentration increased a lot during 2008~2009 due to the Earthquake and the reconstruction after the disaster.With the gradual completion of reconstruction work by 2010,the urban air quality had been restored to the level before the Earthquake.更多还原