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Chemosphere

Title:		The influence of temperature on the emissions of organophosphate ester flame retardants from polyisocyanurate foam: Measurement and modeling
Author(s):		Liang Y; Liu X; Allen MR;
Address:		"Oak Ridge Institute for Science and Education Participant at U.S. Environmental Protection Agency, USA. U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, Research Triangle Park, NC, 27711, USA. Electronic address: liu.xiaoyu@epa.gov. Jacobs Technology Inc., 600 William Northern Boulevard, Tullahoma, TN, 37388, USA"
Journal Title:		Chemosphere
Year:		2019
Volume:		20190531
Issue:
Page Number:		347 - 354
DOI:		10.1016/j.chemosphere.2019.05.289
ISSN/ISBN:		1879-1298 (Electronic) 0045-6535 (Print) 0045-6535 (Linking)
Abstract:		"The material-phase diffusion coefficient (D(m)) and material/air partition coefficient (K(ma)) are the key parameters controlling the emissions of semivolatile organic compounds (SVOCs) from source materials. In indoor environments, air temperature is subject to change and can significantly affect the emission rates of SVOCs from building materials and consumer products. In this study, the emissions of organophosphate ester flame retardants (OPEFRs) from customized polyisocyanurate foam materials were measured in 44-mL microchambers at 23, 35, and 55?ª+ degrees C. The values of D(m) and K(ma) at different temperatures were determined. The results showed that the increase of temperature can significantly enhance the emissions of OPEFRs from the foam materials, and the emissions of OPEFRs were found to transfer from SVOC-type to volatile organic compound (VOC)-type with the increase of temperature. A correlation for OPEFRs between the steady-state emission rate and temperature and correlations between D(m), K(ma,) and temperature were obtained. The research results shed light on the effect of temperature on the mechanisms governing emissions of SVOCs"
Keywords:		"Air Pollutants/analysis/*chemistry Air Pollution, Indoor Construction Materials *Flame Retardants/analysis Organophosphates/analysis/*chemistry Polymers/*chemistry Temperature Triazines/*chemistry Volatile Organic Compounds/analysis/*chemistry Chamber tes;"
Notes:		"MedlineLiang, Yirui Liu, Xiaoyu Allen, Matthew R eng EPA999999/ImEPA/Intramural EPA/ England 2019/06/10 Chemosphere. 2019 Oct; 233:347-354. doi: 10.1016/j.chemosphere.2019.05.289. Epub 2019 May 31"