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Chemosphere

Title:		"Surface-dependent gas equilibrium of semi-volatile organic compounds on glass, wood, and polyurethane foam using SPME-GC/MS"
Author(s):		Kim T; Sohn S; Park H; Jang S; Lee C; Lee JI; Joo SW; Zoh KD;
Address:		"Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, South Korea. Department of Chemistry, Sejong University, Seoul, 143-747, South Korea. Department of Chemical & Biological Engineering, Seokyeong University, Seoul, 02713, South Korea. Korea Testing & Research Institute, Gwacheon, 13810, South Korea. Department of Information Communication, Materials, Chemistry Convergence Technology, Soongsil University, Seoul, 06978, South Korea. Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, 08826, South Korea. Electronic address: zohkd@snu.ac.kr"
Journal Title:		Chemosphere
Year:		2022
Volume:		20211110
Issue:		Pt 2
Page Number:		132869 -
DOI:		10.1016/j.chemosphere.2021.132869
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Linking)
Abstract:		"The surface-dependent evaporation behavior of phthalates as semi-volatile organic compounds (SVOCs) on glass, wood, and polyurethane foam (PUF) was investigated. Three phthalates of di-2-ethylhexyl phthalate (DEHP), butyl benzyl phthalate (BBP), and dibutyl phthalate (DBP) were studied to compare the amount of gases vaporized from their surfaces. A 10 mL silicate glass vial was used to compare the gas equilibrium of the phthalates after 2 h. The gases accumulated in the air were transferred to a solid-phase microextraction (SPME) column and analyzed by gas chromatography-mass spectrometry (GC-MS). As correlated with the physicochemical properties of the phthalates, including molecular weights and vapor pressure, the surface-air partition coefficients (K(sa)) were found to be in the range of 10(1)-10(5) m, 10(6)-10(7) m, and 10(7)-10(9) m on glass, wood, and PUF, respectively, implying that a significant amount of phthalates are retained on wood and PUF surfaces as compared to glass, and only a trace amount of phthalates can be volatilized into the air, especially the less volatile DEHP. The three-dimensional (3D) morphologies of glass and wood were also examined using a white-light interferometric surface profile microscope and an atomic force microscope (AFM). In contrast to smooth glass surfaces within the sub-micrometer vertical range, the wood surfaces exhibited uneven irregular structures at a height of 5-30 mum. The rough wood surfaces were found to adsorb substantial amounts of gases to prevent the effective volatilization of phthalates into the air, especially the low molecular DBP. Our results imply that wood and PUF surfaces may be superior to glass surfaces in storage and reduction of phthalates in the air, especially DBP"
Keywords:		Gas Chromatography-Mass Spectrometry Gases *Phthalic Acids/analysis Polyurethanes Solid Phase Microextraction *Volatile Organic Compounds/analysis Wood/chemistry Building material surface morphologies Gas exposure estimation Partition coefficients Phthala;
Notes:		"MedlineKim, Taeyeon Sohn, Seungwoon Park, Heungjoo Jang, Soonmin Lee, Cheolmin Lee, Jung Il Joo, Sang-Woo Zoh, Kyung-Duk eng England 2021/11/15 Chemosphere. 2022 Mar; 291(Pt 2):132869. doi: 10.1016/j.chemosphere.2021.132869. Epub 2021 Nov 10"