| Title: | A review of vapor intrusion models |
| Author(s): | Yao Y; Shen R; Pennell KG; Suuberg EM; |
| Address: | "School of Engineering, Brown University , Providence, Rhode Island 02912, USA" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Print) 0013-936X (Linking) |
| Abstract: | "A complete vapor intrusion (VI) model, describing vapor entry of volatile organic chemicals (VOCs) into buildings located on contaminated sites, generally consists of two main parts: one part describing vapor transport in the soil and the other describing its entry into the building. Modeling the soil vapor transport part involves either analytically or numerically solving the equations of vapor advection and diffusion in the subsurface. Contaminant biodegradation must often also be included in this simulation, and can increase the difficulty of obtaining a solution, especially when explicitly considering coupled oxygen transport and consumption. The models of contaminant building entry pathway are often coupled to calculations of indoor air contaminant concentration, and both are influenced by building construction and operational features. The description of entry pathway involves consideration of building foundation characteristics, while calculation of indoor air contaminant levels requires characterization of building enclosed space and air exchange within this. This review summarizes existing VI models, and discusses the limits of current screening tools commonly used in this field" |
| Keywords: | "Air Pollution, Indoor/*analysis Biodegradation, Environmental Computer Simulation Diffusion Environmental Pollutants/*analysis/metabolism Models, Chemical Soil/chemistry Volatile Organic Compounds/*analysis/metabolism Volatilization;" |
| Notes: | "MedlineYao, Yijun Shen, Rui Pennell, Kelly G Suuberg, Eric M eng P42 ES013660/ES/NIEHS NIH HHS/ P42ES013660/ES/NIEHS NIH HHS/ Research Support, N.I.H., Extramural Review 2013/01/31 Environ Sci Technol. 2013 Mar 19; 47(6):2457-70. doi: 10.1021/es302714g. Epub 2013 Feb 27" |
