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Title: Relationships between particle number and mass concentrations in an urban area
Authors: Kavouras, Ilias G. 
Kotronarou, Anastasia 
Lianiou, Maria 
Chalbot, Marie Cecile 
Vei, Ino 
Akylas, Evangelos 
Keywords: Coarse particles;Europe;Fine particles;Seasonal variation;Traffic
Category: Civil Engineering
Field: Engineering and Technology
Issue Date: 20-Jun-2006
Source: Air and Waste Management Association's - 99th Annual Conference and Exhibition, 2006, New Orleans, LA, United States, 20 June 2006 through 23 June 2006
Conference: Air and Waste Management Association's - 99th Annual Conference and Exhibition 
Abstract: The PM10, PM2.5, and PM2.5-10 mass concentrations along with fine particle absorbance (PM2.5, abs) and particle number (PN) in the metropolitan area of Athens, Greece were studied. The sampling site was an urban background site in the city center, 50 m from the nearest road with traffic density of ≈ 10,000 vehicles/day. The measured PM2.5 and PM10 concentrations were comparable and higher than those measured in urban areas in Western Europe and US, providing additional evidence of the north-to-south and west-to-east concentration gradient. Particle number concentration measurements were similar to those measured in major urban and industrial areas in Western Europe. Higher particle number concentrations were measured during winter compared to those during summer. This pattern was caused by both variations of particle sources in time and prevailing meteorological conditions. In particular, increased traffic emissions along with emissions from diesel-powered boilers used for domestic heating resulted in higher particle number concentrations during wintertime. While no seasonal pattern was observed for fine and coarse particle mass, wintertime particle number concentrations were substantially higher than those measured during the summer due to differences in particle number sources and local air circulation. This is an abstract of a paper presented at the AWMA Associations 99th Annual Conference and Exhibition 2006 (New Orleans, LA 6/20-23/2006).
Description: Proceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA Volume 1, 2006, Pages 144-148
ISSN: 10526102
Type: Conference Papers
Appears in Collections:Δημοσιεύσεις σε συνέδρια/Conference papers

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