【摘要】 道路扬尘是城市颗粒物的重要来源之一。为了实现道路降尘的目的,本文采用CCHZ-1000全自动粉尘测定仪、WSB-1型高精度数显温湿表和CFJD5微速电子风速仪对贵阳市某城区主干道中29个测点的扬尘浓度、空气温度、空气的相对湿度、5 min内车流量进行测量和记录,来分析影响道路扬尘含量的因素。结果表明,空气湿度与扬尘浓度呈指数负相关,能够最大化遏制扬尘浓度。人工提高道路局部空气湿度能有效降低道路扬尘。更多还原

【Abstract】 Fugitive dust has become one of the important origin of urban particulate matter. In order to achieve the purpose of Fugitive dust reduction,this paper uses CChZ-1000 automatic fugitive dust detector,WSB-1 highprecision digital display temperature humidity meter and CFJD5 Microvelocity Electronic Anemometer and other instrument to measure and record the dust concentration,air temperature,relative humidity of air and vehicle flow in 5 minutes at 29 measuring points on a main road in Guiyang city. The factors affecting the dust content on the road were analyzed. The results show that there is an exponential negative correlation between air humidity and fugitive dust concentration,which can maximize the control of fugitive dust concentration and manual improvement of local air humidity can effective reduce road fugitive dust.更多还原