| Title: | Diffusion studies of VOC mixtures in a building material |
| Address: | "Air Quality Unit, Environment Institute, Joint Research Center, Italy" |
| DOI: | 10.1034/j.1600-0668.2002.01131.x |
| ISSN/ISBN: | 0905-6947 (Print) 0905-6947 (Linking) |
| Abstract: | "Volatile organic compound (VOC) adsorption by indoor materials will reduce peak concentrations, and subsequent desorption will prolong the presence of a compound indoors. Diffusion within materials plays an important role in this context. The purpose of this paper is to present two experimental set-ups to study VOC diffusion, and to show corresponding experimental results. The Field and Laboratory Emission Cell (FLEC) is in both cases an integral part of the set-up. The mass flow of VOC mixtures across gypsum board is studied. Diffusion of less polar VOCs in gypsum board can be fast (diffusion coefficients of 0.001-0.003 m2/h). Diffusion coefficients of chlorinated compounds are correlated with boiling points and molecular areas. Different compounds show similar diffusion properties" |
| Keywords: | "Adsorption Air Movements Air Pollution, Indoor/*analysis *Construction Materials Diffusion Organic Chemicals/analysis Volatilization;" |
| Notes: | "MedlineMeininghaus, R Uhde, E eng Research Support, Non-U.S. Gov't England 2003/01/21 Indoor Air. 2002 Dec; 12(4):215-22. doi: 10.1034/j.1600-0668.2002.01131.x" |
