摘要
当前北京市开始实施春节期间可以燃放烟花爆竹的政策,使北京市在该时间段中空气质量明显下降,PM2.5排放量也逐渐增加,为此运用定量估算法计算燃放烟花爆竹对大气PM2.5作用极为重要。本文阐述了定量估计法的具体含义,同时得到两个计算PM2.5的公式。根据上述对方法的分析,其后又从风速风向与PM2.5浓度的时间变化关系,爆竹燃放时间对PM2.5浓度的影响,燃放烟花爆竹对PM2.5浓度分布的影响以及PM2.5的总量计算等四个方面阐述了烟花爆竹燃放对PM2.5产生的各种影响。本文希望研究得到的结果可以帮助我国各个城市进一步控制在春节期间因烟花爆竹燃放而产生的PM2.5总量,从而促进我国空气质量不断提升。
At present, it is allowed to set off fireworks during spring festival, which causes drop of air quality in this period. And the emission of PM2.5is also increased. To use quantitative estimation method to calculate the effect of fireworks on atmospheric PM2.5is very important. This article expounds the specific meaning of quantitative estimation, and gets two formulas to calculate PM2.5. Then the effect of fireworks setting off on PM2.5are expounded from 4 aspects： time relationship between wind speed and direction and PM2.5concentration,effect of firework ssetting off time on PM2.5concentration, effect of fireworks setting off on PM2.5concentration distribution and total PM2.5amount calculation. It is hoped that the research result can help the cities to further control the total amount of PM2.5due to fireworks setting off so as to improve the air quality in China.
出处
《价值工程》
2015年第34期59-61,共3页
Value Engineering
