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Environ Sci Technol

Title:		Dynamic behavior of semivolatile organic compounds in indoor air. 2. Nicotine and phenanthrene with carpet and wallboard
Author(s):		Van Loy MD; Riley WJ; Daisey JM; Nazaroff WW;
Address:		"Department of Civil and Environmental Engineering, University of California-Berkeley, Berkeley, California 94720-1710, USA"
Journal Title:		Environ Sci Technol
Year:		2001
Volume:		35
Issue:		3
Page Number:		560 - 567
DOI:		10.1021/es001372a
ISSN/ISBN:		0013-936X (Print) 0013-936X (Linking)
Abstract:		"The surface interactions of nicotine and phenanthrene with carpet, painted wallboard, and stainless steel were investigated in a room-sized environmental test chamber. Adsorption kinetics were tested by flash evaporating a known mass of each compound into a sealed 20 m3 chamber containing one or more of the tested sorbents. In each experiment, one or more emissions were performed after the gas-phase concentration had reached an apparent plateau. At the end of each experiment, the chamber was ventilated and resealed to monitor reemission of the compound from the sorbents. Kinetic sorption parameters were determined by fitting a mass-balance model to the experimental results. The sorption capacity of stainless steel was of similar magnitude for nicotine and phenanthrene. Sorption of nicotine on carpet and wallboard was much stronger, with equilibrium partitioning values 2-3 orders of magnitude higher. The sorption capacities of phenanthrene on carpet and wallboard were smaller, approximately 10-20% of the stainless steel values. The rates of uptake are of similar magnitude for all sorbate--sorbent pairs and are consistent with the limit imposed by gas-phase boundary-layer mass transport. The rates of desorption are much faster for phenanthrene than for nicotine. Model simulations predict average nicotine levels in a typical smoking residence that are consistent with published data"
Keywords:		"Adsorption Air Pollution, Indoor/*analysis Ganglionic Stimulants/analysis/*chemistry Humans Kinetics *Manufactured Materials Nicotine/analysis/*chemistry Organic Chemicals Phenanthrenes/analysis/*chemistry Smoking Volatilization;"
Notes:		"MedlineVan Loy, M D Riley, W J Daisey, J M Nazaroff, W W eng R01-HL42490/HL/NHLBI NIH HHS/ Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. 2001/05/16 Environ Sci Technol. 2001 Feb 1; 35(3):560-7. doi: 10.1021/es001372a"