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Concentrations and source contributions of particulate organic matter before and after implementation of a low emission zone in Munich, Germany.

Environ. Pollut. 175, 158-167 (2013)
Verlagsversion Volltext DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Within the Munich low emission zone (LEZ), samples of PM(2.5) were collected before (2006/2007) and after (2009/2010) the implementation of the LEZ. The samples were analyzed for carbon fraction (EC/OC) and particulate organic compounds (POC). Significant lower concentrations were noticed for elemental carbon (EC) and some of the POC like vanillic acid, acetosyringone, syringylacetone and syringic acid after the implementation of the LEZ. Higher concentrations of levoglucosan, retene and O-PAH were detected in the second sampling period. Positive matrix factorization (PMF) was used to identify the main sources of POC. Emissions from traffic, solid fuels combustion, cooking and mixed source were separated. The contribution of traffic source factor was decreased about 60% after the implementation of the LEZ. Thus the average concentration of EC from traffic factor decreased from 1.1 to 0.5 μg/m(3) after the implementation of the LEZ.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter low emission zone; pm2.5; particulate organic compounds (POC); positive matrix factorization (PMF); Positive Matrix Factorization ; Air-pollution Sources ; Source Apportionment ; Aromatic-hydrocarbons ; Molecular Markers ; Elemental Carbon ; Aerosol ; Combustion ; Urban ; Pm2.5
ISSN (print) / ISBN 0269-7491
e-ISSN 1873-6424
Quellenangaben Band: 175, Heft: , Seiten: 158-167 Artikelnummer: , Supplement: ,
Verlag Elsevier
Begutachtungsstatus Peer reviewed