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: 10700798
• 负责人: Shirley Papuga
• 金额: $ 31.84万
• 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/10700798
• 关键词: Address; Architecture; Area; Awareness; Benzene; Biological; Biomedical Research; Characteristics; Chemicals; Cities; Collaborations; Communities; Complex; Data; Data Analyses; Dedications; Development; Effectiveness; Environment; Environmental Health; Exposure to; Goals; Hazardous Substances; Health; Hot Spot; Human; Indoor Air Quality; Industrialization; Infiltration; Infrastructure; Leadership; Link; Maps; Methods; Modeling; Monitor; Outcome; Plants; Positioning Attribute; Precipitation; Predisposition; Premature Birth; Privatization; Problem Solving; Process; Property; Public Health; Research; Risk Assessment; 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：后工业化城市中，挥发性有机物（VOCs）污染日益严重