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| DOI | 10.1016/j.atmosenv.2020.117786 |
| The influence of urban road traffic on nanoparticles: Roadside measurements | |
| Belkacem I.; Khardi S.; Helali A.; Slimi K.; Serindat S. | |
| 发表日期 | 2020 |
| ISSN | 1352-2310 |
| 卷号 | 242 |
| 英文摘要 | Nanoparticles generated from major roadways have a pronounced effect on human health, responsible for cardiovascular and respiratory problems, among others. In order to examine the effects of nanoparticles on human health, it is essential to know the factors/sources influencing both particle number concentration (PNC) and particle number distribution (PND). Roadside measurements were conducted close to an urban road located in the city of Bron near Lyon (France) over a flat terrain, where the dominant dispersion mechanisms stemmed from traffic and atmospheric turbulence. Roadside particle number concentration measurements were obtained using the Fast Mobility Particle Sizer™ (FMPS™) Spectrometer (Model 3091) at two different heights, as well as at different distances between source and sampling sites, ranging from 6.60 m to 330 m. Particles in the 5.6–600 nm size range were measured alongside a busy urban roadway. The effect of traffic volume, wind speed and direction, height above the road surface and distance from the source on both PNC and PND has been investigated. Results revealed that PNC increases significantly with an increase in height of less than 2.82 m above the road surface. Moreover, distance from the source and traffic volume is two correlated parameters. It has been shown that the highest concentration was observed at the distance nearest the road and vice versa. A bimodal daily average PND was found, with concentrated modes at 10.75 nm and then between 22.07 and 52.33 nm. Furthermore, PND was primarily influenced by nucleation and Aitken modes, as explanatory factors at the sampling site for the pollution produced from urban traffic. © 2020 Elsevier Ltd |
| 关键词 | Air qualityDistance from the sourceHeight above ground levelNanoparticlesRoadside measurementsTraffic conditions |
| 语种 | 英语 |
| scopus关键词 | Atmospheric turbulence; Nanoparticles; Roadsides; Wind; Correlated parameters; Dispersion mechanisms; Fast mobility particle sizers; Particle number concentration; Respiratory problems; Roadside measurements; Urban road traffic; Wind speed and directions; Urban growth; nanoparticle; air quality; air sampling; atmospheric pollution; dispersion; nanoparticle; pollution incidence; public health; respiratory disease; road traffic; roadside environment; urban transport; air pollution; air sampling; air temperature; Article; atmosphere; climate; concentration (parameter); dispersion; high temperature; highway; humidity; particle size; priority journal; surface property; traffic pollution; urban area; wind; wind speed; Auvergne-Rhone-Alpes; France; Grand Lyon; Lyons |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/248911 |
| 作者单位 | Laboratory of Thermal and Energy Systems Studies (LESTE), National Engineering School, University of Monastir, Tunisia; Environment, Planning, Safety and Eco-design Laboratory, Department of Mobility, Planning and the Environment, Gustave Eiffel University, University of Lyon, Lyon, France; Department of Transport Technology and Engineering, Higher Institute of Transport and Logistics, University of Sousse, Tunisia |
| 推荐引用方式 GB/T 7714 | Belkacem I.,Khardi S.,Helali A.,et al. The influence of urban road traffic on nanoparticles: Roadside measurements[J],2020,242. |
| APA | Belkacem I.,Khardi S.,Helali A.,Slimi K.,&Serindat S..(2020).The influence of urban road traffic on nanoparticles: Roadside measurements.ATMOSPHERIC ENVIRONMENT,242. |
| MLA | Belkacem I.,et al."The influence of urban road traffic on nanoparticles: Roadside measurements".ATMOSPHERIC ENVIRONMENT 242(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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