| Title: | Modeling the formation and growth of organic films on indoor surfaces |
| Author(s): | Eichler CMA; Cao J; Isaacman-VanWertz G; Little JC; |
| Address: | "Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia" |
| ISSN/ISBN: | 1600-0668 (Electronic) 0905-6947 (Linking) |
| Abstract: | "Emission, transport, and fate of semi-volatile organic compounds (SVOCs), which include plasticizers, flame retardants, pesticides, biocides, and oxidation products of volatile organic compounds, are influenced in part by their tendency to sorb to indoor surfaces. A thin organic film enhances this effect, because it acts as both an SVOC sink and a source, thus potentially prolonging human exposure. Unfortunately, our ability to describe the initial formation and subsequent growth of organic films on indoor surfaces is limited. To overcome this gap, we propose a mass transfer model accounting for adsorption, condensation, and absorption of multiple gas-phase SVOCs on impervious, vertical indoor surfaces. Further model development and experimental research are needed including more realistic scenarios accounting for surface heterogeneity, non-ideal organic mixtures, and particle deposition" |
| Keywords: | "Absorption, Physicochemical Adsorption Air Pollutants *Air Pollution, Indoor/analysis Humans *Models, Chemical Volatile Organic Compounds/analysis/*chemistry/*metabolism absorption condensation heat and mass transfer organic film surface chemistry;" |
| Notes: | "MedlineEichler, Clara M A Cao, Jianping Isaacman-VanWertz, Gabriel Little, John C eng Research Support, U.S. Gov't, Non-P.H.S. England 2018/11/06 Indoor Air. 2019 Jan; 29(1):17-29. doi: 10.1111/ina.12518. Epub 2018 Nov 27" |
