DOI: 10.1016/j.atmosenv.2015.01.073
Scopus记录号: 2-s2.0-84922136331
论文题名: PM2.5 source apportionment in Lombardy (Italy): Comparison of receptor and chemistry-transport modelling results
作者: Pirovano G ; , Colombi C ; , Balzarini A ; , Riva G ; M ; , Gianelle V ; , Lonati G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 106 起始页码: 56
结束页码: 70
语种: 英语
英文关键词: CAMx/PSAT
; Chemistry transport models
; CMB8.2
; Po valley
; Receptor models
; Source apportionment
Scopus关键词: Chemical analysis
; Particles (particulate matter)
; Roads and streets
; Transportation
; CAMx/PSAT
; Chemistry transport model
; CMB8.2
; PO Valley
; Receptor model
; Source apportionment
; Motor transportation
; ammonium nitrate
; anthropogenic effect
; atmospheric modeling
; emission
; heating
; nitrate
; particulate matter
; pollutant source
; pollution control
; air sampling
; Article
; atmospheric dispersion
; chemistry transport model
; cold climate
; model
; particulate matter
; priority journal
; Italy
; Lombardy
; Po Valley
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: This work discusses the source apportionment results produced by receptor and chemistry-transport modelling for PM2.5 in Northern Italy, selected as case study due to its very critical conditions. Receptor modelling was performed using the Chemical Mass Balance model, while source oriented analysis by means of the CAMx chemistry transport model. Models shared the same source profiles, mostly based on local data. CMB showed a better reconstruction of the mass closure, while CAMx systematically underestimated cold season concentrations. Nevertheless both models provided the same source ranking at several receptors. According to CMB results, the most relevant contributions during the cold season, ranging around 10μgm-3, were yielded by road transport, domestic heating and ammonium nitrate. CAMx provided similar results for the secondary sources, while systematically underestimated road transport and domestic heating. A similar behaviour was observed during the summer season. The main discrepancies between the models were: the questionable results from CMB at some receptors, missing the road transport contribution, clearly pointed out by CAMx/PSAT; the ability of CAMx/PSAT to apportion the contribution of sources sharing similar profiles and strongly correlated such as CI and SI vehicles, altogether recognized as traffic source by CMB; the ability of CAMx/PSAT to identify the contribution of secondary PM deriving from complex chemical transformation, such as anthropogenic and biogenic SOA. Finally, the comparison of specific source contribution pointed out that CAMx missed the reconstruction of the road transport contribution to the OC, mostly as a consequence of deficiencies in the emission inventories concerning the primary OC in the cold season and the concurrent underestimation of emissions and secondary OC formation in the warm season. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81927
Appears in Collections: 气候变化事实与影响
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作者单位: RSE Spa, via Rubattino 54, Milano, Italy; ARPA Lombardia Settore Monitoraggi Ambientali, via Juvara 22, Milano, Italy; DICA Politecnico di Milano, P.za L. da Vinci 32, Milano, Italy
Recommended Citation:
Pirovano G,, Colombi C,, Balzarini A,et al. PM2.5 source apportionment in Lombardy (Italy): Comparison of receptor and chemistry-transport modelling results[J]. Atmospheric Environment,2015-01-01,106