Title: Sources and geographic origin of particulate matter in urban areas of the Danube macro-region: the cases of Zagreb (Croatia), Budapest (Hungary) and Sofia (Bulgaria)
Authors: PERRONE MARIA GRAZIAVRATOLIS S.GEORGIEVA EMILIATOROK SZABINASEGA KRESIMIRVELEVA BLAGORODKAOSAN JANOSBESLIC IVANKERTESZ ZSOFIAPERNIGOTTI DENISEELEFTHERIADIS K.BELIS CLAUDIO
Citation: SCIENCE OF THE TOTAL ENVIRONMENT vol. 619-620 p. 1515-1529
Publisher: ELSEVIER SCIENCE BV
Publication Year: 2018
JRC N°: JRC107486
ISSN: 0048-9697
URI: http://www.sciencedirect.com/science/article/pii/S0048969717331492?via%3Dihub
http://publications.jrc.ec.europa.eu/repository/handle/JRC107486
DOI: 10.1016/j.scitotenv.2017.11.092
Type: Articles in periodicals and books
Abstract: The contribution of main PM pollution sources and their geographic origin in three urban sites of the Danube macro-region (Zagreb, Budapest and Sofia) were determined by combining receptor and Lagrangian models. The source contribution estimates were obtained with the Positive Matrix Factorization (PMF) receptor model and the results were further examined using local wind data and backward trajectories obtained with FLEXPART. Potential Source Contribution Function (PSCF) analysis was applied to identify the geographical source areas for the PM sources subject to long-range transport. Gas-to-particle transformation processes and primary emissions from biomass burning are the most important contributors to PM in the studied sites followed by re-suspension of soil (crustal material) and traffic. These four sources can be considered typical of the Danube macro-region because they were identified in all the studied locations. Long-range transport was observed of: a) sulphate-enriched aged aerosols, deriving from SO2 emissions in combustion processes in the Balkans and Eastern Europe and b) dust from the Saharan and Karakum deserts. The study highlights that PM pollution in the studied urban areas of the Danube macro-region is the result of both local sources and long-range transport from both EU and no-EU areas.
JRC Directorate:Energy, Transport and Climate

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