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Environ Sci Technol


Title:Investigation of the volatile organic substances that cause the characteristic odor of pentachlorophenol treated wood utility poles
Author(s):Fortin M; Gilbert R; Besner A; Labrecque JF; Hubert J;
Address:"Institut de Recherche d'Hydro-Quebec, 1800, Boulevard Lionel-Boulet, Varennes, Quebec, Canada J3X 1S1"
Journal Title:Environ Sci Technol
Year:2002
Volume:36
Issue:23
Page Number:5014 - 5020
DOI: 10.1021/es020508x
ISSN/ISBN:0013-936X (Print) 0013-936X (Linking)
Abstract:"The nature of the volatile organic compounds that could be at the origin of the characteristic odor of treated wood utility poles was investigated by the study of compositional changes in the chromatographic profiles of fresh-pentachlorophenol (PCP) solvent samples and weathered samples collected from an in-service red pine pole. Over 99 peaks were identified in the chromatogram of the fresh solvent from which a large portion of the C3-, C4-, C5-, C6-alkylbenzene isomers and early eluting n-alkanes was missing from the analysis of weathered samples. Three domains in the chromatographic profile (volatile, semivolatile, and nonvolatile components) were confirmed by assessing the headspace of fresh-PCP solvent samples using direct syringe sampling and solid-phase microextraction. A first level of field validation was achieved using an emission cell for measuring substances emanating from sapwood specimens at different temperatures. The average latent heat of vaporization (deltaHvap) of the PCP-solvent components was estimated at 99.9 kJ/mol from these results. Finally, the analysis of airborne substances at a treating plant and a utility pole storage site confirmed that the C4-, C5-, and C6-alkylbenzene isomers could contribute to the characteristic odor perceived by humans"
Keywords:Air Pollutants Chromatography Environmental Monitoring Humans *Odorants Organic Chemicals/analysis Pentachlorophenol/*analysis/*chemistry Pesticides/*analysis/*chemistry Smell Solvents Volatilization Wood;
Notes:"MedlineFortin, Myriam Gilbert, Roland Besner, Andre Labrecque, Jean-Francois Hubert, Joseph eng Research Support, Non-U.S. Gov't 2003/01/14 Environ Sci Technol. 2002 Dec 1; 36(23):5014-20. doi: 10.1021/es020508x"

 
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