Key Design Elements of Building Pressure Cycling for Evaluating Vapor Intrusion-A Literature Review [0.03%]
用于评估蒸气侵入的关键建筑设计要素综述
Christopher C Lutes,Chase W Holton,Robert Truesdale et al.
Christopher C Lutes et al.
Building pressure cycling (BPC) is becoming an increasingly important tool for studying vapor intrusion. BPC has been used to distinguish subslab and indoor sources of vapor intrusion as well as to define reasonable worst case volatile orga...
In Situ Chemical Oxidation: Permanganate Oxidant Volume Design Considerations [0.03%]
就地化学氧化：高锰酸盐氧化剂体积设计考虑因素
Scott G Huling,Randall R Ross,Kimberly Meeker Prestbo
Scott G Huling
Contaminant rebound and low contaminant removal are reported more frequently with in situ chemical oxidation than other in situ technologies. Although there are multiple causes for these results, a critical analysis indicates that low oxida...
Effect of Biofuels on Biodegradation of Benzene and Toluene at Gasoline Spill Sites [0.03%]
生物燃料对汽油泄漏场地苯和甲苯降解的影响
John T Wilson,Cherri Adair,Hal White et al.
John T Wilson et al.
The risk that benzene and toluene from spills of gasoline will impact drinking water wells is largely controlled by the natural anaerobic biodegradation of benzene and toluene. Benzene and toluene, as well as ethanol and other biofuels, are...
Examining the use of USEPA's Generic Attenuation Factor in determining groundwater screening levels for vapor intrusion [0.03%]
USEPA通用衰减因子在确定蒸汽入侵地下水筛查水平中的应用评估
Yijun Yao,Iason Verginelli,Eric M Suuberg et al.
Yijun Yao et al.
A value of 0.001 is recommended by the United States Environmental Protection Agency (USEPA) for its groundwater-to-indoor air Generic Attenuation Factor (GAFG), used in assessing potential vapor intrusion (VI) impacts to indoor air, given ...
An Excel®-based visualization tool of 2-D soil gas concentration profiles in petroleum vapor intrusion [0.03%]
基于Excel的石油蒸汽入侵二维土壤气体浓度分布可视化工具
Iason Verginelli,Yijun Yao,Eric M Suuberg
Iason Verginelli
In this study we present a petroleum vapor intrusion tool implemented in Microsoft® Excel® using Visual Basic for Applications (VBA) and integrated within a graphical interface. The latter helps users easily visualize two-dimensional soil...
Karen Wovkulich,Martin Stute,Thomas J Protus Sr et al.
Karen Wovkulich et al.
Many hydrological and geochemical studies rely on data resulting from injection of tracers and chemicals into groundwater wells. The even distribution of liquids to multiple injection points can be challenging or expensive, especially when ...
Persistence of a Groundwater Contaminant Plume after Hydraulic Source Containment at a Chlorinated-Solvent Contaminated Site [0.03%]
含氯溶剂污染场地在采取水力控制措施切断污染源后地下水中污染物羽的持续存在问题研究
D E Matthieu rd,M L Brusseau,Z Guo et al.
D E Matthieu rd et al.
The objective of this study was to characterize the behavior of a groundwater contaminant (trichloroethene) plume after implementation of a source-containment operation at a site in Arizona. The plume resides in a quasi three-layer system c...
Using DNA-Stable Isotope Probing to Identify MTBE- and TBA-Degrading Microorganisms in Contaminated Groundwater [0.03%]
利用DNA-同位素示踪技术鉴别受污染地下水中的甲基叔丁醚和叔丁醇降解微生物
Katherine C Key,Kerry L Sublette,Kathleen Duncan et al.
Katherine C Key et al.
Although the anaerobic biodegradation of methyl tert-butyl ether (MTBE) and tert-butyl alcohol (TBA) has been documented in the laboratory and the field, knowledge of the microorganisms and mechanisms involved is still lacking. In this stud...
Sewer Gas: An Indoor Air Source of PCE to Consider During Vapor Intrusion Investigations [0.03%]
室内空气中的PCE来源：在蒸汽入侵调查中考虑污水气体的影响
Kelly G Pennell,Madeleine Kangsen Scammell,Michael D McClean et al.
Kelly G Pennell et al.
The United States Environmental Protection Agency (USEPA) is finalizing its vapor intrusion guidelines. One of the important issues related to vapor intrusion is background concentrations of volatile organic chemicals (VOCs) in indoor air, ...
ANALYSIS OF SOIL VAPOR EXTRACTION DATA TO EVALUATE MASS-TRANSFER CONSTRAINTS AND ESTIMATE SOURCE-ZONE MASS FLUX [0.03%]
基于土壤蒸汽抽取数据评价质量传递效应及源区质量通量估算分析
Mark L Brusseau,Virginia Rohay,Michael J Truex
Mark L Brusseau
Methods are developed to use data collected during cyclic operation of soil vapor extraction (SVE) systems to help characterize the magnitudes and timescales of mass flux associated with vadose zone contaminant sources. Operational data col...