Analysis of One Year's OC/EC Data at a Prague Suburban Site with 2-Hour Time Resolution.

0394017 - ÚCHP 2014 RIV GB eng J - Journal Article
Vodička, Petr - Schwarz, Jaroslav - Ždímal, Vladimír
Analysis of One Year's OC/EC Data at a Prague Suburban Site with 2-Hour Time Resolution.
Atmospheric Environment. Roč. 77, OCT (2013), s. 865-872. ISSN 1352-2310. E-ISSN 1873-2844
R&D Projects: GA ČR GA205/09/2055; GA ČR GAP209/11/1342
Institutional support: RVO:67985858
Keywords : carbonaceous aerosol * organic carbon * elemental carbon
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 3.062, year: 2013

The behaviour of elemental and organic carbon (EC and OC) in the atmospheric aerosol fraction PM2.5 was measured at a Prague urban background site in the Czech Republic. The measurements were performed by a semi-online field OC/EC analyzer with a two-hour resolution that sufficiently showed the diurnal variability of OC/EC. The seasonal, daily and diurnal behaviour of the EC and OC were studied using an analysis of the collected data. The results of a one-year campaign (Sep 2009 – Aug 2010) provide various seasonal patterns of the EC and OC concentrations characteristic for a suburban site in Central Europe. Different sources of carbonaceous aerosols during the various seasons were identified. The winter main sources were probably traffic (mainly EC) and residential heating (both EC and OC). On the other hand, the main EC source in summer is traffic, while the major OC source may be secondary organic aerosols. Winter concentrations were significantly higher than in other seasons.
Permanent Link: http://hdl.handle.net/11104/0222349