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DOI	10.1016/j.atmosenv.2020.117796
	Simplified methods for characterizing dynamic sorption of SVOCs on viscous particles
	Zhou X.; Luo C.; Wang X.; Liu K.
发表日期	2020
ISSN	1352-2310
卷号	241
英文摘要	Exposure to indoor and outdoor semi-volatile organic compounds (SVOCs) poses a significant threat to human health. The dynamic mass transfer of SVOCs between gas and particles, especially those containing high-viscosity organic matter, plays an important role in determining the behavior of indoor and outdoor SVOCs and their exposure risk to human health. In this study, four simplified methods are proposed to characterize the dynamic interaction of SVOCs between gas and particles based on an analytical solution of the mass transfer model. The methods entail neither complex series calculations nor solutions to transcendental equations to estimate the SVOC dynamic behavior between the gas and particle phases. Through analysis, the critical value of mass Fourier number, i.e., 0.18, and the critical values of mass Biot number, i.e., 0.1 and 20, are used to divide the ranges of application of the different methods into six zones. The results calculated demonstrate that the simplified methods are sufficiently accurate to estimate the saturation state of SVOCs in viscous particles with different organic species. Based on these methods, the internal SVOC distribution in the particles and the time to reach equilibrium are discussed. The results calculated for benzo[a]pyrene between the gas phase and different particles show that the viscosity of the organic species in the particles has a significant impact on the sorption saturation degree of the SVOCs. Thus, caution should be exercised when the equilibrium assumption is made for studying the interaction of SVOCs between gas and particle phases, especially in the case of particles comprising organic species of high viscosities. © 2020 Elsevier Ltd
关键词	Dynamic model Particle Partitioning Semi-volatile organic compounds (SVOCs)Viscosity
语种	英语
scopus关键词	Health risks; Indoor air pollution; Mass transfer; Viscosity; Volatile organic compounds; Dynamic behaviors; Dynamic interaction; Mass transfer modeling; Risk to human health; Saturation degree; Semi-volatile organic compounds (SVOCs); Simplified method; Transcendental equations; Gases; benzo[a]pyrene; semi volatile organic compound; unclassified drug; volatile organic compound; detection method; health risk; pollution exposure; public health; risk factor; sorption; volatile organic compound; absorption; adsorption; aerosol; Article; calculation; chemical interaction; chemical reaction; conceptual model; critical value; gas; heat transfer; measurement accuracy; particulate matter; partition coefficient; phase partitioning; priority journal; solution and solubility; suburban area; surface area; viscosity
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248958
作者单位	School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China; Institute of Materials, China Academy of Engineering Physics, Mianyang, Sichuan 621907, China
推荐引用方式 GB/T 7714	Zhou X.,Luo C.,Wang X.,et al. Simplified methods for characterizing dynamic sorption of SVOCs on viscous particles[J],2020,241.
APA	Zhou X.,Luo C.,Wang X.,&Liu K..(2020).Simplified methods for characterizing dynamic sorption of SVOCs on viscous particles.ATMOSPHERIC ENVIRONMENT,241.
MLA	Zhou X.,et al."Simplified methods for characterizing dynamic sorption of SVOCs on viscous particles".ATMOSPHERIC ENVIRONMENT 241(2020).