春节期间燃放烟花爆竹对南宁市环境空气的影响分析

根据2011年春节期间南宁市主要污染物（PM10、SO2、NO2）浓度，分析了燃放烟花爆竹对环境空气的影响。结果表明：除夕和元宵节大量燃放烟花爆竹能导致PM10在短时间内快速上升，但对SO2和NO2浓度的影响不明显。除夕期间23：00-2：00是PM10受燃放烟花爆竹影响最大时段，城市居民居住集中区PM10浓度远高于其他区域。

Effect of Firecrackers during Spring Festival on Air in Nanning City

Based on the concentrations of PM10, SO2 and NO2 from firecrackers in Nanning during the Spring Festival in 2011, the effect of firecrackers on air were analyzed. The results showed that a lot of firecrackers exploded during Spring Festival led to a fast increase of PM10 concentration in a short time, while the concentrations of SO2 and NO2 had no significant changes. Especially during 23 ： 00 -2 ： 00 on the Eve when the exploded firecrackers quantity reached the maximum, the effect also reached the maximum. The PM10 concentration in concentrated residential area was much higher than that in areas else.