摘要：为了解城市春节期间大量燃放烟花爆竹造成的大气污染状况,对沈阳城区进行了大气气溶胶分级采样,对细颗粒样品中41种元素进行了分析。结果表明:春节期间空气中污染物浓度明显高于平时状态,其中燃放烟花爆竹的标识元素Ba、Sr、K等元素浓度非常高;由交通和工业生产产生的污染元素Cd、As、B、Pb、Zn等在细颗粒中也有大量的富集,显示了春节期间除燃放烟花爆竹造成的颗粒物污染外,来自冶炼、餐饮、化学工业以及汽车尾气等人为污染源的释放也占有重要地位。

关键词：烟花爆竹；悬浮细颗粒；富集因子

Abstract：To understand the atmospheric pollution status result from letting off firework during the Spring Festival in Shenyang， the elements concentrations of collected samples were analyzed. The results indicated that letting off fireworks caused serious contamination and the element concentrations of fine particles were higher than the ordinary period. The concentration of identification elements for fireworks such as Ba， Sr， K and other elements also reached very high concentration. In addition， other polluted elements such as Cd， As， B， Pb， Zn derived from traffic and industry activities were significantly enriched in fine particles. It was indicated that the anthropogenic origins of smelting restaurant, chemical industry and automobile emissions played an important role besides fireworks during this period. 

Keywords：fireworks； suspended fine particles； enrichment factor