| Title: | A Petroleum Vapor Intrusion Model Involving Upward Advective Soil Gas Flow Due to Methane Generation |
| Author(s): | Yao Y; Wu Y; Wang Y; Verginelli I; Zeng T; Suuberg EM; Jiang L; Wen Y; Ma J; |
| Address: | "Laboratory of Environmental Engineering, Department of Civil Engineering and Computer Science Engineering, University of Rome 'Tor Vergata' , Via del Politecnico, 1 00133 Rome, Italy. School of Engineering, Brown University , Providence, Rhode Island 02912, United States. Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China. State Key Laboratory of Heavy Oil Processing, Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum-Beijing , Beijing 102249, China" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Print) 0013-936X (Linking) |
| Abstract: | "At petroleum vapor intrusion (PVI) sites at which there is significant methane generation, upward advective soil gas transport may be observed. To evaluate the health and explosion risks that may exist under such scenarios, a one-dimensional analytical model describing these processes is introduced in this study. This new model accounts for both advective and diffusive transport in soil gas and couples this with a piecewise first-order aerobic biodegradation model, limited by oxygen availability. The predicted results from the new model are shown to be in good agreement with the simulation results obtained from a three-dimensional numerical model. These results suggest that this analytical model is suitable for describing cases involving open ground surface beyond the foundation edge, serving as the primary oxygen source. This new analytical model indicates that the major contribution of upward advection to indoor air concentration could be limited to the increase of soil gas entry rate, since the oxygen in soil might already be depleted owing to the associated high methane source vapor concentration" |
| Keywords: | "Air Air Pollution, Indoor/adverse effects/*analysis Biodegradation, Environmental Computer Simulation Explosions Gases/analysis Housing Humans Methane/*analysis/chemistry/metabolism *Models, Theoretical Oxygen/analysis/metabolism *Petroleum/analysis Risk;" |
| Notes: | "MedlineYao, Yijun Wu, Yun Wang, Yue Verginelli, Iason Zeng, Tian Suuberg, Eric M Jiang, Lin Wen, Yuezhong Ma, Jie eng P42 ES013660/ES/NIEHS NIH HHS/ Research Support, Non-U.S. Gov't 2015/09/01 Environ Sci Technol. 2015 Oct 6; 49(19):11577-85. doi: 10.1021/acs.est.5b01314. Epub 2015 Sep 21" |
