摘要
为了解哈尔滨市街道扬尘污染状况，采用大流量采样器，在哈尔滨市两条有代表性的街道（柏油路和土路）采集大气颗粒物，以１．５ｍ和４．５ｍ高度处大气颗粒物浓度之差作为该路面条件下扬尘浓度估计值，以扬尘浓度与１．５ｍ高处大气总颗粒物浓度之比作为扬尘对大气污染的贡献率。结果表明，土路扬尘浓度及扬尘对大气总颗粒物污染的贡献率均高于柏油路，提示道路铺装可以净化城市空气，同时应重视柏油路面地区较小粒径扬尘的危害。建议对扬尘加以综合治理。
In order to know the air pollution caused by raised dust from the surface of the road,using high capacity air sampler sampling of atmospheric particles was carried out in two representative roads (asphalt road and non pared road) The difference between the concentrations of total suspended particulates (TSP) sampled at height 1.5 m and 4.5 m was regarded as the estimated concentration of raised dust (ECRD),the ratio of ECRD to TSP sampled at height 1.5 m as contributed rate of raised dust to atmospheric pollution in the road.The results showed that the ECRD and the contributed rate in the non pared road were higher than those in the asphalt road.It indicated that making road surface could purify city air,but the affects of raised dust particulates with minor diameter from the surface of asphalt road on human health should be paid attention to.It sugested that the comprehensive control on raised dust should be carried out,and monitoring for raised dust should be regarded as one part of the atmospheric monitoring.
出处
《环境与健康杂志》
CAS
CSSCI
CSCD
北大核心
1999年第1期26-27,共2页
Journal of Environment and Health
关键词
街道
扬尘
大气污染
总悬浮颗粒物
哈尔滨
Road Raised dust Atmospheric pollution Total suspended pariticulates
