CAREER: Vapor Intrusion, Knowledge Brokers and Environmental Health - A Three-Dimensional Perspective

职业：蒸汽入侵、知识经纪人和环境健康 - 三维视角

• 批准号: 1452800
• 负责人: Kelly Pennell
• 金额: $ 40.47万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-15 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1452800&HistoricalAwards=false
• 关键词: CAREER; Vapor; Intrusion; Knowledge; Brokers

1452800PI: Pennell, KellyCAREER: Vapor Intrusion, Knowledge Brokers and Environmental Health - A Three-Dimensional PerspectiveThe average person spends 90 % of their time indoors, which makes indoor air quality extremely important. There are many sources of indoor air contamination, but one that is too often overlooked is the transport of subsurface vapors into indoor air spaces (i.e. vapor intrusion).Vapor intrusion is notoriously difficult to characterize because extremely low chemical concentrations in indoor air are health-relevant and modeling indoor air and subsurface environments requires sophisticated approaches. This project will bridge the gap that exists between air transport modeling of above ground spaces and subsurface spaces. The research introduces a novel approach, where for the first time a volatile organic chemical vapor intrusion model will incorporate atmospheric, indoor and subsurface environments, in an effort to address unexplained preliminary field data collected by the PI, as well as some recent reports of unexplained field observations in the literature. Since vapor intrusion regulations are rapidly emerging, new knowledge generated must be translated by scientists and engineers to engage with key stakeholders, quickly and effectively. The educational goal of this proposal is to train students as knowledge brokers to build bridges between academic researchers and key stakeholders, such as regulators, professionals, legislators, and community members. The modeling will involve computational fluid dynamic approaches. The field data sets include variations in indoor air concentrations and soil gas concentrations that are inconsistent with existing numerical models. Qualitatively, the field data does not mimic the current conceptual understanding of vapor intrusion, which makes current vapor intrusion models extremely limited in their ability to describe field observations. The proposed model will advance the field of environmental engineering by establishing important, and previously omitted connections between the subsurface and aboveground domains that are relevant for environmental fate and transport. Moreover, vapor intrusion characterization also requires scientific knowledge from many different disciplines (e.g. soil scientists, industrial hygienists, analytical chemists, environmental engineers) to fully understand the matter. This project will develop a new vapor intrusion modeling technique that combines subsurface fate and transport modeling with mechanical and industrial engineering approaches for modeling aboveground air transport. Research results will be integrated into vapor intrusion assessment practices, so that exposure risks are assessed using accurate science-based methods. The results of the research will be shared with relevant stakeholders to ensure research results gain relevancy for policy decisions.

[1452800]彭奈尔，凯利。职业：蒸汽侵入、知识掮客和环境健康——三维视角一般人90%的时间都在室内度过，这使得室内空气质量极其重要。室内空气污染有许多来源，但其中一个经常被忽视的是地下蒸汽进入室内空气空间的运输（即蒸汽侵入）。众所周知，水汽侵入很难表征，因为室内空气中极低的化学物质浓度与健康有关，室内空气和地下环境的建模需要复杂的方法。这个项目将弥合存在于地面空间和地下空间的空气运输模型之间的差距。该研究引入了一种新方法，首次将挥发性有机化学蒸汽入侵模型纳入大气、室内和地下环境，以解决PI收集的无法解释的初步野外数据，以及最近文献中一些无法解释的野外观测报告。由于蒸汽入侵法规正在迅速出现，科学家和工程师必须将产生的新知识转化为快速有效地与关键利益相关者接触。该提案的教育目标是培养学生成为知识经纪人，在学术研究人员和关键利益相关者（如监管机构、专业人士、立法者和社区成员）之间建立桥梁。建模将涉及计算流体动力学方法。现场数据集包括室内空气浓度和土壤气体浓度的变化，这与现有的数值模型不一致。从质量上讲，现场数据并不能模拟目前对蒸汽侵入的概念理解，这使得目前的蒸汽侵入模型在描述现场观测的能力方面非常有限。所提出的模型将通过建立与环境命运和运输相关的地下和地上领域之间重要的、以前被忽略的联系来推进环境工程领域。此外，蒸汽侵入表征还需要来自许多不同学科（例如土壤科学家，工业卫生学家，分析化学家，环境工程师）的科学知识才能充分理解此事。该项目将开发一种新的蒸汽侵入建模技术，该技术将地下命运和运输建模与地面空气运输建模的机械和工业工程方法相结合。研究成果将整合到蒸汽侵入评估实践中，以便使用基于科学的准确方法评估暴露风险。研究结果将与相关利益攸关方分享，以确保研究结果与政策决策相关。