E1 - Building Aboveground Strategies to Identify and Address Belowground Hot Spots for VOC Vapor Intrusion in Complex Urban Settings

E1 - 制定地上策略来识别和解决复杂城市环境中 VOC 蒸气入侵的地下热点

• 批准号: 10352962
• 负责人: Shirley Papuga
• 金额: $ 31.67万
• 依托单位: WAYNE STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-08 至 2027-06-30
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10352962
• 关键词: Address; Architecture; Area; Awareness; Benzene; Biological; Biomedical Research; Characteristics; Chemicals; Cities; Collaborations; Communities; Complex; Data; Data Analyses; Development; Effectiveness; Environment; Environmental Health; Exposure to; Goals; Hazardous Substances; Health; Hot Spot; Human; Indoor Air Quality; Industrialization; Infrastructure; Leadership; Link; Maps; Methods; Modeling; Monitor; Outcome; Plant Roots; Plants; Positioning Attribute; Precipitation; Premature Birth; Privatization; Problem Solving; Process; Property; Public Health; Research; Research Project Grants; Risk; Sampling; Scheme; Signal Recognition Particle; Soil; Source; Superfund; Techniques; Technology; Testing; Tetrachloroethylene; Time; Tissues; Toluene; Toxic effect; Training; Trichloroethylene; Urban Community; Water; Work; Xylene; community engagement; contaminant transport; cost effective; cost efficient; data management; data sharing; effectiveness evaluation; ethylbenzene; experience; ground water; health data; hydrology; improved; indoor air; innovation; interest; member; method development; minimally invasive; offspring; remediation; residence; stable isotope; theories; uptake; urban setting; vapor; vapor intrusion; volatile organic compound

Project Summary/Abstract: In post-industrial cities, volatile organic compounds (VOCs) are increasingly recognized as especially persistent and problematic contaminants. VOCs have been highlighted because of their impact on public health through intrusion into basements via soil vapors. However, our ability to address this public health issue is limited by our ability to identify belowground VOC contamination in a spatially comprehensive and cost-efficient way. Project E1’s objective is to use an innovative aboveground approach to pinpoint possible hot spots of belowground VOCs in post-industrial urban environments that contribute to human health issues associated with degraded indoor air quality as a result of vapor intrusion. Our central hypothesis is that because VOCs can accumulate in plant tissue, mainly via root-water uptake, plant-water interactions can be used in a cost-effective way to inform VOC data and isolate belowground VOC hotspots in post-industrial urban environments with highly altered hydrology. We propose to address this hypothesis through three specific aims: (1) identify hot spots of VOC contamination using data from aboveground plant tissue in a geospatial GIS framework; (2) identify belowground source waters for urban plants to isolate possible sources of VOC contamination (especially in urban environments where access to groundwater through wells is limited); (3) verify belowground presence of VOCs and link to VOCs in indoor air. The proposed approach is the first effort to link phytoscreening and stable isotope techniques in understanding belowground VOCs. Compounds of interests include trichloroethylene; tetrachloroethylene; benzene, toluene, ethylbenzene, and xylenes – priority Superfund contaminants that have been detected in soil vapors of our study area (Detroit, MI). Our findings will contribute to the problem-solving goals of CLEAR by: (1) providing the proof-of-concept for using aboveground plant tissue in both point and non-point belowground source remediation efforts of Superfund-relevant VOC contaminants in complex urban environments and (2) providing the geospatial framework for sharing data between environmental and biomedical research efforts aimed at improving conditions that impact public health in complex post- industrial urban environments. Metrics from our geospatial framework and metrics of public health concern can be spatially correlated to focus remediation and/or mitigation efforts. Therefore, Project E1 directly responds to: SRP broad mandate 3, i.e., development of “methods and technologies to detect hazardous substances in the environment” – and directly relates to the goals of Project E2; SRP broad mandate 2, i.e., development of “methods to assess the risks to public health presented by hazardous substances” because the incorporation of our environmental data into a geospatial framework allows for direct integration with public health data – and directly relates to the goals of Project B3 and the Community Engagement Core; SRP broad mandate 4, i.e. evaluating “basic biological, chemical, and physical methods to reduce the amount and toxicity of hazardous substances” by monitoring existing phytoremediation efforts within the urban community for their effectiveness.

项目摘要/摘要：在后工业城市中，挥发性有机化合物（VOC）越来越多 被认为是特别持久和有问题的污染物。 VOC由于他们的 通过土壤蒸气侵入地下室对公共卫生的影响。但是，我们解决这个问题的能力 公共卫生问题受到我们在空间中识别地下vos污染的能力的限制 全面且成本效益的方式。 E1项目的目标是使用创新的地上方法 在后工业的城市环境中查明地下VOC的可能的热点，这有助于人类 由于蒸气侵入而导致的室内空气质量降低相关的健康问题。我们的中心假设 是因为VOC可以在植物组织中积聚，主要是通过根水吸收，所以植物 - 水相互作用可以 以具有成本效益的方式使用，以告知VOC数据并隔离后工业中的地下VOC热点 水文学高度改变的城市环境。我们建议通过三个特定 目的：（1）使用地球空间GIS中地上植物组织的数据确定VOC污染的热点 框架; （2）确定城市植物的地下源水，以隔离可能的VOC来源 污染（尤其是在通过水井进入地下水的城市环境中）； （3）验证 在地下存在VOC，并链接到室内空气中的VOC。拟议的方法是链接的第一个努力 在理解地下VOC时，植物镜和稳定的同位素技术。利益的化合物 包括三氯乙烯；四氯乙烯；苯，甲苯，乙烯苯和Xylenes - 优先超级基金 在我们研究区域（MI底特律）的土壤蒸气中检测到的污染物。我们的发现将做出贡献 到解决问题的解决目标：（1）提供使用地上植物组织的概念证明 在点和非点的地下源源补救工作中，与超级基金相关的VOC污染物在 复杂的城市环境以及（2）提供地理空间框架，以共享环境之间的数据 生物医学研究工作旨在改善影响复杂后公共卫生的条件 - 工业城市环境。我们的地理空间框架和公共卫生关注指标的指标可以 经常与重点补救和/或缓解工作相关。因此，E1项目直接回应： SRP广泛的授权3，即开发“检测有害物质的方法和技术 环境” - 直接与项目E2的目标； SRP广泛任务2，即开发 “评估危险物质带来的公共卫生风险的方法”，因为 我们进入地理空间框架的环境数据允许与公共卫生数据直接集成 - 直接与项目B3和社区参与核心的目标有关； SRP广泛任务4，即 评估“降低危险的量和毒性的基本生物学，化学和物理方法 通过监测城市社区中现有的植物修复工作的有效性。