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.

项目概要/摘要：在后工业城市，挥发性有机化合物（VOC）越来越多 被认为是特别持久且有问题的污染物。 VOC 之所以受到关注，是因为它们 通过土壤蒸气侵入地下室对公众健康产生影响。然而，我们有能力解决这个问题 公共卫生问题受到我们在空间范围内识别地下 VOC 污染的能力的限制。 全面且具有成本效益的方式。 E1 项目的目标是使用创新的地面方法 查明后工业化城市环境中地下 VOC 可能的热点区域，这些区域对人类健康有贡献 与蒸汽侵入导致的室内空气质量下降相关的健康问题。我们的中心假设 是因为挥发性有机化合物可以在植物组织中积累，主要是通过根部-水的吸收，植物-水的相互作用可以 以经济有效的方式用于提供 VOC 数据并隔离后工业时代的地下 VOC 热点 水文学高度改变的城市环境。我们建议通过三个具体的方法来解决这个假设 目标：(1) 使用地理空间 GIS 中地上植物组织的数据识别 VOC 污染热点 框架; (2) 识别城市工厂地下水源水，隔离可能的VOC来源 污染（特别是在通过水井获取地下水受到限制的城市环境中）； (3)验证 地下存在 VOC 并与室内空气中的 VOC 存在关联。所提出的方法是链接的第一个努力 植物筛选和稳定同位素技术了解地下挥发性有机化合物。利益复合物 包括三氯乙烯；四氯乙烯；苯、甲苯、乙苯和二甲苯——优先超级基金 我们研究区域（密歇根州底特律）的土壤蒸气中检测到的污染物。我们的发现将有助于 通过以下方式实现 CLEAR 解决问题的目标：(1) 提供使用地上植物组织的概念验证 在与超级基金相关的 VOC 污染物的点和非点地下源修复工作中 复杂的城市环境（2）提供地理空间框架以在环境之间共享数据 和生物医学研究工作，旨在改善复杂的后影响公共卫生的条件 工业城市环境。我们的地理空间框架中的指标和公共卫生问题的指标可以 与重点修复和/或缓解工作在空间上相关。因此，E1项目直接回应： SRP广泛任务3，即开发“检测有害物质的方法和技术” 环境”——并且与项目 E2 的目标直接相关；SRP 广泛的任务 2，即开发 “评估有害物质对公众健康造成的风险的方法”，因为纳入了 我们的环境数据进入地理空间框架，可以与公共卫生数据直接集成——并且 与项目 B3 和社区参与核心的目标直接相关； SRP 广泛任务 4，即 评估“减少有害物质数量和毒性的基本生物、化学和物理方法” 物质”，通过监测城市社区内现有植物修复工作的有效性。