DOI: 10.1016/j.atmosenv.2019.117217
论文题名: Source apportionment of PM2.5 and PM10 by Ionic and Mass Balance (IMB) in a traffic-influenced urban atmosphere, in Portugal
作者: Pio C. ; Alves C. ; Nunes T. ; Cerqueira M. ; Lucarelli F. ; Nava S. ; Calzolai G. ; Gianelle V. ; Colombi C. ; Amato F. ; Karanasiou A. ; Querol X.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 223 语种: 英语
英文关键词: Factorization
; Organic pollutants
; Soil pollution
; Aerosol mass loading
; Carbonaceous aerosol
; Carbonaceous matter
; Complementary characteristics
; Mass balance
; Positive Matrix Factorization
; Source apportionment
; Urban aerosols
; Aerosols
; ammonia
; biofuel
; chloride
; magnesium
; sodium
; sulfate
; aerosol
; biomass burning
; combustion
; organic pollutant
; particulate matter
; pollutant source
; source apportionment
; urban area
; urban atmosphere
; urban pollution
; aerosol
; air pollution
; combustion
; comparative study
; controlled study
; exhaust gas
; moisture
; particulate matter
; pollutant
; Portugal
; priority journal
; traffic
; urban area
; Portugal
学科: Carbonaceous aerosol
; Ionic and mass balance
; Source apportionment
; Urban aerosol
中文摘要: The recently developed Ion and Mass Balance (IMB) source apportionment methodology was applied to a traffic influenced urban aerosol, permitting the quantification of the contributions of 11 source components, or formation processes, which accounted for more than 96% of the measured aerosol mass loading. Main sources included exhaust and non-exhaust road vehicle emissions, biomass burning, secondary inorganic and organic pollutants, and primary soil and sea salt emissions. While in summer secondary carbonaceous matter is the predominant fraction, in winter biomass burning accounts, on average, for more than 40% of the PM2.5 aerosol. Comparison with Positive Matrix Factorization (PMF) showed the complementary characteristics of the two methodologies. PMF yielded 8 source profiles, including industry and oil combustion sources not discriminated by IMB. PMF is better at quantifying multiple component contributions to sources. IMB solves problems of collinearity between aerosol tracers and permits the discrimination of secondary formed pollutants. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160583
Appears in Collections: 气候变化与战略
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作者单位: CESAM & Dep. Environment, University of Aveiro, Aveiro, 3810-193, Portugal; Dept. Physics and Astronomy, University of Florence and INFN - Florence, Sesto Fiorentino, 50019, Italy; Environmental Monitoring Sector, Arpa Lombardia, Via Rosellini 17, Milan, 20124, Italy; Inst. Environmental Assessment and Water Res. (IDAEA-CSIC), Barcelona, 08034, Spain
Recommended Citation:
Pio C.,Alves C.,Nunes T.,et al. Source apportionment of PM2.5 and PM10 by Ionic and Mass Balance (IMB) in a traffic-influenced urban atmosphere, in Portugal[J]. Atmospheric Environment,2020-01-01,223