DOI: 10.1016/j.atmosenv.2014.05.002
Scopus记录号: 2-s2.0-84901069995
论文题名: Mass closure and source apportionment of PM2.5 by Positive Matrix Factorization analysis in urban Mediterranean environment
作者: Mantas E ; , Remoundaki E ; , Halari I ; , Kassomenos P ; , Theodosi C ; , Hatzikioseyian A ; , Mihalopoulos N
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 154
结束页码: 163
语种: 英语
英文关键词: Elemental carbon
; EPA PMF
; Mass closure
; Organic matter
; Secondary inorganic aerosol
; Source apportionment
Scopus关键词: Aerosols
; Biogeochemistry
; Biological materials
; Calcium
; Carbon
; Dust
; Lead
; Magnesium
; Manganese removal (water treatment)
; Matrix algebra
; Organic compounds
; Particulate emissions
; Quartz
; Silicon
; Elemental carbon
; EPA PMF
; Mass closure
; Secondary inorganic aerosol
; Source apportionment
; Titanium
; ammonia
; calcium
; chromium
; copper
; element
; fuel oil
; manganese
; methane
; nickel
; organic carbon
; organic matter
; phosphorus
; politef
; sulfate
; trace element
; trace metal
; zinc
; aerosol composition
; anthropogenic source
; atmospheric dynamics
; combustion
; concentration (composition)
; dust
; Mediterranean environment
; nitrate
; numerical model
; organic matter
; particle size
; particulate matter
; pollutant source
; resuspension
; sea salt
; sulfur
; trace element
; traffic emission
; urban atmosphere
; air monitoring
; article
; biomass
; calculation
; dust
; factorial analysis
; ion pair chromatography
; particulate matter
; photochemistry
; precipitation
; priority journal
; urban area
; Athens [Attica]
; Attica
; Greece
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: A systematic monitoring of PM2.5 was carried out during a period of three years (from February 2010 to April 2013) at an urban site, at the National Technical University of Athens campus. Two types of 24-hPM2.5 samples have been collected: 271 samples on PTFE and 116 samples on quartz filters. Daily PM2.5 concentrations were determined for both types of samples. Total sulfur, crustal origin elements and elements of a major crustal component (Al, Si, Fe, Ca, K, Mg, Ti) trace elements (Zn, Pb, Cu, Ni, P, V, Cr, Mn) and water soluble ions (Cl-, NO3 -, SO4 2-, Na+, K+, NH4 +, Ca2+, Mg2+) were determined on the PTFE samples. Organic carbon (OC), elemental carbon (EC) and water soluble ions were determined on the quartz samples. For the mass closure six components were considered: Secondary Inorganic Aerosol (SIA), Organic Matter (OM), Elemental Carbon (EC), Dust, Mineral anthropogenic component (MIN) and Sea Salt (SS). SIA and OM contributed in the mass of PM2.5 almost equally: 30-36% and 30% respectively. EC, SS and MIN accounted for 5, 4 and 3% respectively of the total PM2.5 mass. Dust accounted for about 3-5% in absence of dust transport event and reached a much higher percentage in case of dust transport event. These contributions justify at least 80% of the PM2.5 mass. Source apportionment analysis has been performed by Positive Matrix Factorization. The combination of the PMF results obtained by both data sets lead to the definition of six factors: 1. SO4 2-, NH4 +, OC (industrial/regional sources, secondary aerosol) 2. EC, OC, K and trace metals (traffic and heating by biomass burning, locally emitted aerosol). 3. Ca, EC, OC and trace metals (urban-resuspended road dust reflecting exhaust emissions), 4. Secondary nitrates 5. Na, Cl (marine source) 6. Si, Al, Ti, Ca, Fe (Dust transported from Sahara). These factors reflect not only main sources contributions but also underline the key role of atmospheric dynamics and aerosol ageing processes in this Mediterranean environment. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81169
Appears in Collections: 气候变化事实与影响
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作者单位: Laboratory of Environmental Science and Engineering, School of Mining and Metallurgical Engineering, National Technical University of Athens, Heroon Polytechniou 9, 15780 Zografou, Greece; Hellenic Open University, School of Science and Technology, Tsamadou 13-15, 26222 Patras, Greece; Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, PO Box 2208, 71003 Heraklion, Greece; Laboratory of Meteorology, Department of Physics, University of Ioannina, University Campus GR-45110, Ioannina, Greece
Recommended Citation:
Mantas E,, Remoundaki E,, Halari I,et al. Mass closure and source apportionment of PM2.5 by Positive Matrix Factorization analysis in urban Mediterranean environment[J]. Atmospheric Environment,2014-01-01,94