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Chemosphere

Title:		Ions species size distribution in particulate matter associated with VOCs and meteorological conditions over an urban region
Author(s):		Pateraki S; Maggos T; Michopoulos J; Flocas HA; Asimakopoulos DN; Vasilakos C;
Address:		"Environmental Research Laboratory/INT-RP, National Centre for Scientific Research DEMOKRITOS, 153 10 Aghia Paraskevi Attikis, P.O. Box 60228, Athens, Greece. stella@ipta.demokritos.gr"
Journal Title:		Chemosphere
Year:		2008
Volume:		20080425
Issue:		3
Page Number:		496 - 503
DOI:		10.1016/j.chemosphere.2008.02.061
ISSN/ISBN:		0045-6535 (Print) 0045-6535 (Linking)
Abstract:		"Airborne particulate matter (PM10, PM2.5, PM1) and volatile organic compounds (benzene, toluene, m,p-xylene, o-xylene) samples were collected during winter and summer seasons of 2005 at two sites, representing an urban and a suburban region of the Greater Athens Area. Urban site traffic emissions were the major contributor to the concentration of PM2.5, PM10, toluene, and xylenes, while benzene and PM1 concentrations were presented in significant spatial variations. K+, Na+, Mg2+, Ca2+, NO3-, Cl- and SO42- ions were analyzed for the chemical characterization of the collected PM samples. The results showed that Na+ cations and SO42- anions were the dominant species, during winter and summer, respectively, in both sites. The analysis of the synoptic scale and mesoscale atmospheric circulation during the experimental periods demonstrated that the meteorological conditions play a key role, not only in the variation but also in the distribution of the ionic concentrations at the three fractions of particulates and the dominant character (alkaline/acidic/neutral) of the particulates at the two sampling sites"
Keywords:		Air Pollutants/*analysis/chemistry Cities Environmental Monitoring/*methods Geography Greece Particle Size Particulate Matter/*analysis/chemistry Volatilization;
Notes:		"MedlinePateraki, St Maggos, Th Michopoulos, J Flocas, H A Asimakopoulos, D N Vasilakos, Ch eng England 2008/04/29 Chemosphere. 2008 Jun; 72(3):496-503. doi: 10.1016/j.chemosphere.2008.02.061. Epub 2008 Apr 25"