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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 17, issue 4 | Copyright
Atmos. Chem. Phys., 17, 3145-3163, 2017
https://doi.org/10.5194/acp-17-3145-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 01 Mar 2017

Research article | 01 Mar 2017

The contribution of wood burning and other pollution sources to wintertime organic aerosol levels in two Greek cities

Kalliopi Florou1,2, Dimitrios K. Papanastasiou1,2, Michael Pikridas3, Christos Kaltsonoudis1,2, Evangelos Louvaris1,2, Georgios I. Gkatzelis1,2, David Patoulias1,2, Nikolaos Mihalopoulos4,5, and Spyros N. Pandis1,2,6 Kalliopi Florou et al.
  • 1Institute of Chemical Engineering Sciences, ICE/FORTH, Patras, Greece
  • 2Department of Chemical Engineering, University of Patras, Patras, Greece
  • 3The Cyprus Institute, Environment Energy and Water Research Center, Nicosia, Cyprus
  • 4Department of Chemistry, University of Crete, Heraklion, Greece
  • 5IERSD, National Observatory of Athens, Athens, Greece
  • 6Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, USA

Abstract. The composition of fine particulate matter (PM) in two major Greek cities (Athens and Patras) was measured during two wintertime campaigns, one conducted in 2013 and the other in 2012. A major goal of this study is to quantify the sources of organic aerosol (OA) and especially residential wood burning, which has dramatically increased due to the Greek financial crisis. A high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) was deployed at both sites. PM with diameter less than 1µm (PM1) consisted mainly of organics (60–75%), black carbon (5–20%), and inorganic salts (around 20%) in both Patras and Athens. In Patras, during evening hours, PM1 concentrations were as high as 100µgm−3, of which 85% was OA. In Athens, the maximum hourly value observed during nighttime was 140µgm−3, of which 120µgm−3 was OA. Forty to 60% of the average OA was due to biomass burning for both cities, while the remaining mass originated from traffic (12–17%), cooking (12–16%), and long-range transport (18–24%). The contribution of residential wood burning was even higher (80–90%) during the nighttime peak concentration periods, and less than 10% during daytime. Cooking OA contributed up to 75% during mealtime hours in Patras, while traffic-related OA was responsible for 60–70% of the OA during the morning rush hour.

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The composition of fine particulate matter (PM) in two major Greek cities (Athens and Patras) was measured during two wintertime campaigns in 2012 and 2013. Residential wood burning has dramatically increased due to the Greek financial crisis, contributing around 50 % of the fine PM on average and more than 80 % during nighttime. Cooking is also an important source during both midday and evening, while transportation dominates only during the morning rush hour.
The composition of fine particulate matter (PM) in two major Greek cities (Athens and Patras)...
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