DOI: 10.1016/j.atmosenv.2014.07.029
Scopus记录号: 2-s2.0-84904465484
论文题名: Indicators reflecting local and transboundary sources of PM2.5 and PMCOARSE in Rome - impacts in air quality
作者: Dimitriou K ; , Kassomenos P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 96 起始页码: 154
结束页码: 162
语种: 英语
英文关键词: Air mass trajectories
; Air quality
; PSCF
; Rome
Scopus关键词: Air quality
; Cluster analysis
; Pollution
; Principal component analysis
; Trajectories
; Air mass trajectories
; Air quality impacts
; Atmospheric pattern
; Balkan peninsulas
; Potential source contribution function
; PSCF
; Rome
; Secondary sources
; Particles (particulate matter)
; nitric oxide
; air mass
; air quality
; atmospheric pollution
; concentration (composition)
; particulate matter
; pollutant source
; transboundary pollution
; air pollutant
; air quality
; article
; atmospheric transport
; Balkan Peninsula
; combustion
; controlled study
; environmental impact
; geographic distribution
; Italy
; North Africa
; oxidation
; particulate matter
; particulate matter 2.5
; particulate matter coarse
; principal component analysis
; priority journal
; Balkans
; Italy
; Lazio
; North Africa
; Roma [Lazio]
; Rome
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The keystone of this paper was to calculate and interpret indicators reflecting sources and air quality impacts of PM2.5 and PMCOARSE (PM10-PM2.5) in Rome (Italy), focusing on potential exogenous influences. A backward atmospheric trajectory cluster analysis was implemented. The likelihood of daily PM10 exceedances was studied in conjunction with atmospheric patterns, whereas a Potential Source Contribution Function (PSCF) based on air mass residence time was deployed on a grid of a 0.5°×0.5° resolution. Higher PM2.5 concentrations were associated with short/medium range airflows originated from Balkan Peninsula, whereas potential PMCOARSE sources were localized across the Mediterranean and coastal North Africa, due to dust and sea spray transportation. According to the outcome of a daily Pollution Index (PI), a slightly increased degradation of air quality is induced due to the additional quantity of exogenous PM but nevertheless, average levels of PI in all trajectory clusters belong in the low pollution category. Gaseous and particulate pollutants were also elaborated by a Principal Component Analysis (PCA), which produced 4 components: [Traffic], [photochemical], [residential] and [Secondary Coarse Aerosol], reflecting local sources of air pollution. PM2.5 levels were strongly associated with traffic, whereas PMCOARSE were produced autonomously by secondary sources. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80820
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratory of Meteorology, Department of Physics, University of Ioannina, University Campus, GR-45110, Ioannina, Greece
Recommended Citation:
Dimitriou K,, Kassomenos P. Indicators reflecting local and transboundary sources of PM2.5 and PMCOARSE in Rome - impacts in air quality[J]. Atmospheric Environment,2014-01-01,96