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Carbonaceous Aerosols in Contrasting Atmospheric Environments in Greek Cities: Evaluation of the EC-tracer Methods for Secondary Organic Carbon Estimation by Dimitris G. Kaskaoutis; Georgios Grivas; Christina Theodosi; Maria Tsagkaraki; Despina Paraskevopoulou; Iasonas Stavroulas; Eleni Liakakou; Antonis Gkikas; Nikolaos Hatzianastassiou; Cheng Wu; Evangelos Gerasopoulos; Nikolaos Mihalopoulos is a Earth and Planetary Sciences article available to read on EtoBox.

What is Carbonaceous Aerosols in Contrasting Atmospheric Environments in Greek Cities: Evaluation of the EC-tracer Methods for Secondary Organic Carbon Estimation about?

This study examines the carbonaceous-aerosol characteristics at three contrasting urban environments in Greece (Ioannina, Athens, and Heraklion), on the basis of 12 h sampling during winter (January to February 2013), aiming to explore the inter-site differences in atmospheric composition and carbonaceous-aerosol characteristics and sources. The winter-average organic carbon (OC) and elemental carbon (EC) concentrations in Ioannina were found to be 28.50 and 4.33 μg m−3, respectively, much higher than those in Heraklion (3.86 μg m−3 for OC and 2.29 μg m−3 for EC) and Athens (7.63 μg m−3 for OC and 2.44 μg m−3 for EC). The winter OC/EC ratio in Ioannina (6.53) was found to be almost three times that in Heraklion (2.03), indicating a larger impact of wood combustion, especially during the night, whereas in Heraklion, emissions from biomass burning were found to be less intense. Estimations of primary and secondary organic carbon (POC and SOC) using the EC-tracer method, and specifically its minimum R-squared (MRS) variant, revealed large differences between the sites, with a prevalence of POC (67–80%) in Ioannina and Athens and with a larger SOC fraction (53%) in Heraklion. SOC estim

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Author

Dimitris G. Kaskaoutis; Georgios Grivas; Christina Theodosi; Maria Tsagkaraki; Despina Paraskevopoulou; Iasonas Stavroulas; Eleni Liakakou; Antonis Gkikas; Nikolaos Hatzianastassiou; Cheng Wu; Evangelos Gerasopoulos; Nikolaos Mihalopoulos

Publisher

Korean Meteorological Society; MDPI AG; Rotoweb Cantelli; Basel: MDPI AG, 2010- (ISSN 2073-4433)

Published

2020

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)