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J Air Waste Manag Assoc

Title:		Indoor fine particles: the role of terpene emissions from consumer products
Author(s):		Sarwar G; Olson DA; Corsi RL; Weschler CJ;
Address:		"Center for Energy and Environmental Resources, University of Texas, Austin, Texas 78758, USA"
Journal Title:		J Air Waste Manag Assoc
Year:		2004
Volume:		54
Issue:		3
Page Number:		367 - 377
DOI:		10.1080/10473289.2004.10470910
ISSN/ISBN:		1096-2247 (Print) 1096-2247 (Linking)
Abstract:		"Consumer products can emit significant quantities of terpenes, which can react with ozone (O3). Resulting byproducts include compounds with low vapor pressures that contribute to the growth of secondary organic aerosols (SOAs). The focus of this study was to evaluate the potential for SOA growth, in the presence of O3, following the use of a lime-scented liquid air freshener, a pine-scented solid air freshener, a lemon-scented general-purpose cleaner, a wood floor cleaner, and a perfume. Two chamber experiments were performed for each of these five terpene-containing agents, one at an elevated O3 concentration and-the other at a lower O3 concentration. Particle number and mass concentrations increased and O3 concentrations decreased during each experiment. Experiments with terpene-based air fresheners produced the highest increases in particle number and mass concentrations. The results of this study clearly demonstrate that homogeneous reactions between O3 and terpenes from various consumer products can lead to increases in fine particle mass concentrations when these products are used indoors. Particle increases can occur during periods of elevated outdoor O3 concentrations or indoor O3 generation, coupled with elevated terpene releases. Human exposure to fine particles can be reduced by minimizing indoor terpene concentrations or O3 concentrations"
Keywords:		"Air Pollution, Indoor/*analysis Environmental Monitoring *Household Products Ozone/*chemistry Particle Size Seasons Terpenes/*chemistry Volatilization;"
Notes:		"MedlineSarwar, Golam Olson, David A Corsi, Richard L Weschler, Charles J eng Research Support, Non-U.S. Gov't 2004/04/06 J Air Waste Manag Assoc. 2004 Mar; 54(3):367-77. doi: 10.1080/10473289.2004.10470910"