元宵节燃放烟花爆竹对北京市空气质量的影响

本文利用2011年元宵节(2月17日)前后北京市主要大气污染物(PM10、SO2、NOX、CO和O3)的浓度数据和相关气象资料,分析了元宵节烟花爆竹燃放对北京市空气质量的影响.结果表明:元宵节大量鞭炮的集中燃放导致了PM10的急剧升高,影响时段主要在2月17日19:00到18日7:00.全市PM10最高小时浓度出现在17日23:00左右,全市平均达到469.3μg/m3,单站最高达到1307μg/m3;烟花爆竹的燃放对SO2、NOX和CO也有一定影响,且对CO的影响有一定的滞后性;燃放烟花爆竹对O3浓度影响很小;不同的采样点之间空气质量有所差异.另外,元宵节前后北京市的气象条件相对较好,API中烟花爆竹的贡献较高,但在良好的气象条件下,烟花爆竹燃放的影响很快消除.

The Influence of the Burning of Fireworks on Air Quality during the Lantern Festival in Beijing

The concentration data of PM10,SO2,NOX,CO,O3 and relevant meteorological data were used to study the influence of on burning of fireworks air quality during the lantern festival(February 17th,2011) in Beijing.The results showed the concentrated burning of fireworks led to a sharp rise on PM10 and February 17th 19:00 to 18th 7:00 is the main influential time.The citywide supreme hour average concentration of PM10 is 469.3 μg/m3 at 17th 23:00,and the highest concentration of all monitoring points is 1307 μg/m3.The burning of fireworks has some influence on SO2,NOX,CO and has little influence on O3,and the influence on CO has certain hysteresis.The air quality of different monitoring points is different.Meteorological condition in Being is relatively good around lantern festival,The air pollution caused by fireworks can be eliminate quickly even the contribution of burning of fireworks is relatively higher on API.