贵阳市冬季高层建筑环境空气中可吸入颗粒物的污染特征

指出了空气颗粒物污染不仅能使大气能见度降低,而且对人体健康造成危害。通过对贵阳市2个高层建筑可吸入颗粒物浓度的监测,对贵阳市冬季高层建筑可吸入颗粒物的污染水平和污染特征进行了研究。结果表明：城市高层建筑面临的颗粒物污染垂直分布是比较复杂的,较大颗粒的质量浓度底层要大于上层。对于同一个高层建筑,在不同楼层,PM2.5/PM10的比值变化幅度不大。大气中PM2.5和PM10没有明显的相关性,这主要和污染源分布以及天气条件有关。

On the Pollution Characters of Inhalable Particulate Matter in Ambient Air of High-Rise Buildings in Winter of Guiyang City

The pollution of air particles not only reduces the atmosphere visibility, but also has serious harm to people ＇s health. By monitoring the inhalable particulate matter of two high--rise buildings in Guiyang City. Guizhou Province, this article researches on the contamination level and characters of inhalable particulate matters of high--rise buildings in winter. According to the study, the vertical distribution of particulates pollution of urban high-- rise buildings is highly complex, and the mass concentration of larger particles is greater than the underlying upper. For the same high--rise building, the ratio of PM2.5/PM10 varies little among different floors. There is no obvious correlation between PM2.5 and PM10, which is mainly related with the distribution of pollution sources and weather conditlons.