Penkała Magdalena, Rogula-Kozłowska Wioletta, Ogrodnik Paweł, Bihałowicz Jan Stefan, Iwanicka Natalia
Institute of Technical Sciences and Aviation, State Academy of Applied Sciences in Chełm, 54 Pocztowa Street, 22-100 Chełm, Poland.
Institute of Safety Engineering, The Main School of Fire Service, Slowackiego Street 52/54, 01-629 Warsaw, Poland.
Materials (Basel). 2023 Jan 31;16(3):1200. doi: 10.3390/ma16031200.
Road dust is an important inexhaustible source of particulate matter from traffic and the resuspension of finer particles carried by wind and traffic. The components of this material are of both natural and anthropogenic origin. Sources of particulate pollution are vehicles and road infrastructure. The work aimed to analyze the mass fraction of the finest fractions of road dust (<0.1 mm) collected from highways and expressways with asphalt and concrete surfaces. Sampling points were located in the central and southern parts of Poland. The research material was sieved on a sieve shaker. It has been proven that concrete pavement is less susceptible to abrasion than asphalt pavement. Particles formed under the influence of the erosion of asphalt and concrete belong to the fraction gathering coarser particles than the critical for this research fraction (<0.1 mm). It was found that limiting the area with sound-absorbing screens leads to the accumulation of fine road dust in this place, contrary to the space where are strong air drafts that remove smaller particles from the vicinity of the road. In general, the mass fraction of particles smaller than 100 μm in road dust was from 12.8% to 3.4% for asphalt surfaces and from 12.0% to 6.5% for concrete surfaces.
道路灰尘是交通产生的颗粒物以及风携带和交通扬起的细颗粒再悬浮的重要无尽来源。这种物质的成分既有天然来源也有人为来源。颗粒物污染的来源是车辆和道路基础设施。这项工作旨在分析从沥青路面和混凝土路面的高速公路及快速路收集的道路灰尘最细部分（<0.1毫米）的质量分数。采样点位于波兰中部和南部。研究材料在振筛机上进行筛分。已证明混凝土路面比沥青路面更不易磨损。在沥青和混凝土侵蚀影响下形成的颗粒属于比本研究关键部分（<0.1毫米）聚集更粗颗粒的部分。研究发现，与有强气流将较小颗粒从道路附近带走的空间相反，限制使用吸音屏障的区域会导致该区域细道路灰尘的积累。一般来说，沥青路面道路灰尘中小于100微米颗粒的质量分数为12.8%至3.4%，混凝土路面为12.0%至6.5%。
