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Indoor Air

Title:		Gas/particle partitioning and size distribution of primary and secondary carbonaceous aerosols in public buildings
Author(s):		Kavouras IG; Stephanou EG;
Address:		"Environmental Chemical Processes Laboratory (ECPL), Department of Chemistry, University of Crete, GR-71409 Heraclion, Greece"
Journal Title:		Indoor Air
Year:		2002
Volume:		12
Issue:		1
Page Number:		17 - 32
DOI:		10.1034/j.1600-0668.2002.120104.x
ISSN/ISBN:		0905-6947 (Print) 0905-6947 (Linking)
Abstract:		"The gas and particulate phase of semi-volatile organic compounds (six samples) and the composition of organic aerosol as a function of particle size (six samples) were studied in two public buildings in Greece. The objectives of this study were: i) to chemically characterize the organic content of indoor gas and particulate phases; ii) to classify indoor organic aerosol constituents as a function of particle size; and iii) to reconcile the sources of organic compounds indoors. Non-polar, semi-polar, polar, and acidic compounds were identified in both gas and particulate phases by using gas chromatography/mass spectrometry (GC/MS). Branched iso- and anteiso-alkanes were used to trace environmental tobacco smoke (ETS) concurrently with other compounds. Polycyclic aromatic hydrocarbons (PAHs) in the gas phase gave a pattern more characteristic to ETS than the corresponding pattern in the particulate phase. The chemical composition observed for n-alkanols and n-alkanoic acids in both gas and particulate phases indicated ETS as one of their main sources indoors. PAHs and n-alkanols were evenly associated between fine and coarse particles and their corresponding total mean mass median aerodynamic diameter (MMAD) was 1.27 and 1.38 microns respectively, indicating a mixed origin. Conversely, the MMAD of n-alkanes, unresolved complex mixture (UCM), iso- and anteiso-alkanes and free fatty acids varied from 0.30 to 0.62 micron denoting a stronger association with indoor sources"
Keywords:		"Aerosols/*analysis Air Pollution, Indoor/*analysis Alkanes/analysis *Environmental Monitoring Gas Chromatography-Mass Spectrometry Gases Particle Size Polycyclic Aromatic Hydrocarbons/*analysis Tobacco Smoke Pollution/*analysis Volatilization;"
Notes:		"MedlineKavouras, Ilias G Stephanou, Euripides G eng Research Support, Non-U.S. Gov't England 2002/04/16 Indoor Air. 2002 Mar; 12(1):17-32. doi: 10.1034/j.1600-0668.2002.120104.x"