城市高层建筑大气颗粒物污染和噪声垂直分布特征  

On the vertical distribution of particle pollution and noise in high-rise buildings

作　　者：刘昌伟[1] 赵勇[1] 苗蕾[1] 张军[1] 樊巍 孙中党 

机构地区：[1]河南农业大学环境系,河南郑州450002 [2]河南省林科院,河南郑州450003 [3]郑州市环境保护科学研究所,河南郑州450007

出　　处：《生态环境学报》2009年第5期1793-1797,共5页Ecology and Environmental Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAD03A17);河南省科技攻关项目(0624090010)

摘　　要：以空气颗粒物和噪声为研究对象,利用颗粒物监测仪和噪声仪,研究了颗粒物和噪声在不同天气状况下以及垂直方向上的变化规律,结果表明,(1)在0～56m之间,TSP、PM10随高度增加而减小,56～116m之间随高度增加而增大。低空中的PM2.5、PM1相差不大,而100m以上高空中的PM2.5、PM1污染程度明显大于地面。(2)天气条件影响颗粒物污染程度。晴天和大风天颗粒物的污染相对较轻,阴天时污染最重。(3)Leq(A)随高度增加而增大,最高点(116m)处的噪声比地面高约4dB。晴朗和阴天条件下,噪声差别不大;在大风天气条件下,高层建筑顶层的噪声污染较重。The change of particle pollution and noise with weather condition and vertical height has been discussed using dust monitoring instrument and AWA6218 noise statistic analysis instrument at high-rise building on Nongye Road,Zhengzhou City. The results show as follows：（1） The concentration of TSP,PM10 decrease vertically from 0 to 56 meter height,but increase for 56 to 116 meter. The PM2.5 and PM1 has no significant difference with concentration in lower altitude,but more polluting tends in higher altitude than near ground. （2） The weather condition has significant influence on the dust pollution. The concentration of PM2.5 and PM1 in sunny days is relative lower than that in cloudy days. （3） The Leq（A） increased gradually along with height with the highest value at 116 m 4 dB （A） higher than that near ground. The noise value was not significantly different from 0 to 116 meter no matter in sunny or cloudy days. The noise in the top of the building was more polluted than near ground,which is effected by strong wind.

关 键 词：天气状况 颗粒物 噪声 垂直分布 

分 类 号：X513[环境科学与工程—环境工程]