| Title: | Development and application of a three-dimensional finite element vapor intrusion model |
| Author(s): | Pennell KG; Bozkurt O; Suuberg EM; |
| Address: | "Division of Engineering, Brown University, Providence, RI 02912, USA. Kelly_pennell@brown.edu" |
| DOI: | 10.3155/1047-3289.59.4.447 |
| ISSN/ISBN: | 1096-2247 (Print) 1096-2247 (Linking) |
| Abstract: | "Details of a three-dimensional finite element model of soil vapor intrusion, including the overall modeling process and the stepwise approach, are provided. The model is a quantitative modeling tool that can help guide vapor intrusion characterization efforts. It solves the soil gas continuity equation coupled with the chemical transport equation, allowing for both advective and diffusive transport. Three-dimensional pressure, velocity, and chemical concentration fields are produced from the model. Results from simulations involving common site features, such as impervious surfaces, porous foundation sub-base material, and adjacent structures are summarized herein. The results suggest that site-specific features are important to consider when characterizing vapor intrusion risks. More importantly, the results suggest that soil gas or subslab gas samples taken without proper regard for particular site features may not be suitable for evaluating vapor intrusion risks; rather, careful attention needs to be given to the many factors that affect chemical transport into and around buildings" |
| Keywords: | "Computer Simulation Environmental Exposure *Models, Chemical Pressure Risk Assessment Soil Pollutants/*analysis/chemistry Volatile Organic Compounds/*analysis/chemistry;" |
| Notes: | "MedlinePennell, Kelly G Bozkurt, Ozgur Suuberg, Eric M eng P42 ES013660/ES/NIEHS NIH HHS/ P42 ES013660-05/ES/NIEHS NIH HHS/ P42ES013660/ES/NIEHS NIH HHS/ Evaluation Study Research Support, N.I.H., Extramural 2009/05/08 J Air Waste Manag Assoc. 2009 Apr; 59(4):447-60. doi: 10.3155/1047-3289.59.4.447" |
