北京市区居民区2007年至2009年春节期间燃放鞭炮噪声数据对比分析

Analysis of the Firecrackers' Noise Effect on Urban Residential Community of Beijing during the Spring Festiral from 2007 to 2009

利用北京市环境噪声自动监测系统数据对2007年-2009年春节期间北京市城八区居民区声环境质量进行分析,明确了节日期间鞭炮集中燃放时段,分析了该期间市区居民区噪声值的总体变化趋势;根据监测点周围环境特点将监测点分成4种居民区类型,进而分析了不同类型居民区所受鞭炮噪声的不同特征;通过噪声事件频谱图及事件录音回放,分析了鞭炮及烟花的不同频谱特性。

Utilizing the data of Beijing Permanent Environmental Noise Monitoring System to analyze the noise quality of urban residential community due to firecrackers during the Spring Festival from the year of 2007 to 2009,and determine the concentrated period of lighting firecrackers during Spring Festival.Based on the concentrated period,we also conclude the general trend of community noise quality.The 8 monitoring sites fall into 4 community groups considering their surrounding features and firecrackers＇ noise characteristics are analyzed according to the related data.By means of playback noise event files and the related 1/3 octave spectrums,we summarize the spectrum features of firecrackers and fireworks respectively.