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首页> 外文会议>Air and Waste Management Association annual conference and exhibition >Comparison of Technologies for Assessing Vapor Intrusion In Future Structures from Subsurface Sources - Case Study with Side-by-Side Measured Flux and JE Modeling
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Comparison of Technologies for Assessing Vapor Intrusion In Future Structures from Subsurface Sources - Case Study with Side-by-Side Measured Flux and JE Modeling

机译：地下来源对未来结构中蒸汽侵入的评估技术的比较-并行测量通量和J＆E建模的案例研究

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A field study was conducted in order to assess the efficacy of using direct flux chamber measurements and soil gas sampling and modeling to assess potential vapor infiltration into future buildings on a development site underlain with compounds found in groundwater. There are three basic approaches for assessing vapor infiltration into buildings: soil gas testing and vapor transport modeling, measurement of compounds found in indoor air compared to outdoor air, and direct flux chamber measurements using the USEPA flux chamber assessment technology. Without buildings, the assessment technologies are limited to soil gas testing and modeling, and direct measurement of VOC flux at the land surface. A field study was designed and implemented where a parcel in the development was tested at multiple locations using soil gas sampling and direct flux chamber measurement at the same locations. In addition, soil parameter data (coring and sampling) were also collected. This paper presents the results of the study. The goal of the work was to demonstrate the utility and both strengths and weaknesses of these assessment technologies for the purpose of assessing potential vapor intrusion into future structures. In addition to presenting the results of the study, which includes a comparison to measured flux via the USEPA flux chamber and predicted flux using site specific soil column parametric data, soil gas data collected at 5' and 10' BLS, and J&E modeling for up to three study compounds, data will also be presented demonstrating the assessment capability of using groundwater concentration data and J&E modeling, and J&E modeling using soil gas data and standard 'look-up' soil parametric data.
机译：为了评估使用直接通量室测量以及土壤气体采样和建模来评估潜在的蒸气渗透到开发场地中地下水中发现的化合物而对未来建筑物的潜在影响，进行了现场研究。共有三种评估蒸气渗透到建筑物中的基本方法：土壤气体测试和蒸气传输建模，与室外空气相比在室内空气中发现的化合物的测量以及使用USEPA流量室评估技术的直接流量室测量。如果没有建筑物，评估技术将仅限于土壤气体测试和建模，以及直接测量地表VOC通量。设计并实施了一项现场研究，其中使用土壤气体采样和直接通量室测量在多个位置在多个位置测试了开发中的包裹。此外，还收集了土壤参数数据（取心和采样）。本文介绍了研究结果。这项工作的目的是证明这些评估技术的实用性以及优缺点，以评估潜在的蒸气侵入未来结构的目的。除了介绍研究结果外，它还包括通过USEPA流量室测得的流量与使用现场特定土壤柱参数数据预测的流量，在5'和10'BLS收集的土壤气体数据以及J＆E建模的比较。在三个研究化合物中，还将提供数据，证明使用地下水浓度数据和J＆E建模以及使用土壤气体数据和标准“查找”土壤参数数据进行J＆E建模的评估能力。

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