摘要
本文通过分析2011年春节期间毕节市PM10、SO2、NO2、PM2.5这些大气成分资料,得出:集中燃放烟花爆竹对空气污染物浓度上升有明显作用,且以颗粒物浓度最为明显;相比燃放烟花,气象条件对SO2、NO2浓度变化的影响更明显;除夕夜PM2.5浓度在21点左右、2点左右分别达到峰值,元宵节PM2.5浓度最大值在23点左右达到,而除夕和元宵节两天中PM2.5时均浓度的最大值是2月平均时均浓度的7至8倍;还通过数据分析,发现不同的逆温层、相对湿度对污染物浓度的变化有着显著的影响作用。
During the Spring Festival in 2011 ,according.to the main pollutant （PM10,PM2.5,SO2,NO2） concentration and Bijic City logical data that setting off firecrackers is analyzed in the air quality. We have the following conclusions. Fire- works burning during Spring Festival makes the particles concentratit, ns increasing rapidly in a short moment. And the effects of fireworks burning on the concentrations of PM10 and PM2.5 are the most significant. The PM2.5 concentration reached the peak at 21 o＇clock and 2 o＇clock in the New Year＇s Eve,and it reached the peak at 23 o＇clock in the Lantern Festival,and the maximum value of PM2.5 concentration during the Spring Festival is six times or seven times higher than the monthly normal average. Different meteorological conditions on pollutant concentration changes have a significant influence.
出处
《科技通报》
北大核心
2012年第5期192-196,共5页
Bulletin of Science and Technology
