Field Deployable Vapor Intrusion Monitor
现场可部署蒸汽入侵监视器
基本信息
- 批准号:8738674
- 负责人:
- 金额:$ 48.47万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2011
- 资助国家:美国
- 起止时间:2011-09-01 至 2017-08-31
- 项目状态:已结题
- 来源:
- 关键词:AccountingAddressAirAreaAssesAutomationChemicalsClimateCollectionComplexDetectionDevicesDiagnosticDisadvantagedEnvironmental PollutionExposure toFood SafetyForensic MedicineFoundationsFourier TransformGas ChromatographyGoalsHazardous ChemicalsHealthIndividualInvestigationLaboratoriesLaboratory StudyMeasurementMeasuresMedicalMethodsMonitorNational Institute of Environmental Health SciencesNatureOpticsOrganic ChemicalsOutcomePerformancePharmaceutical PreparationsPharmacologic SubstancePhasePolymersPopulationPreparationPriceProblem SolvingProcessReagentResearchResearch ProposalsRetrievalSafetySamplingSiteSmall Business Innovation Research GrantSoilSolidSolventsSourceSpectroscopy, Fourier Transform InfraredStrategic PlanningSuperfundSurfaceSystemTelemetryTestingTimeVariantWorkplacebasecostdata managementdetectordrinking waterhazardinformation gatheringinstrumentinterestmethod developmentmigrationnoveloperationphase 1 studypoint of careportabilityprogramspublic health relevanceremediationsample collectionsensorsuperfund sitetoolvaporwastingwater quality
项目摘要
DESCRIPTION: Vapor intrusion is the migration of volatile organic chemicals from below ground into overlying buildings and is a major cause of large population exposure to hazardous chemicals. To assess health impacts of exposure to vapor intrusion compounds, monitoring of indoor air is required. Conventional vapor intrusion monitoring is done by on-site sample collection followed by laboratory analysis. Disadvantages of the conventional method include: the need for sample retrieval, extended processing times, inability to adequately track variations in concentration over time and high cost. Portable analysis methods that can be installed or operated and provide continuous and/or short term measurements are needed to solve these problems. This Phase II Small Business Innovation Research proposal addresses this need through a compact cartridge-based sampling and detection method that, when combined with a portable Fourier Transform Infrared (FTIR) spectrometer, can detect vapor intrusion compounds at low concentrations and with high selectivity. The approach incorporates advances in solid phase extraction and exploits novel coatings for optical waveguides. The method is differentiated from most other detection methods because it provides chemical signatures for unambiguous identification of compounds. Additional advantages include: compact/portable size, near real-time results, readily automated, minimal expertise required, reagent- free, solvent-free and embedded telemetry. The Phase I study successfully demonstrated the method's feasibility by detecting chlorinated vapor intrusion compounds at low parts per billion levels. A Phase II follow on study is proposed emphasizing understanding the capabilities of key components used for selective detection and addresses the methods needed for assembly of a function portable device. The study will characterize the devices' performance at a Superfund field site. The impact of this research goes beyond the immediate focus on vapor intrusion monitoring. Improvements in sample preparation methods can be applied wherever portable on-site analysis is desired, such as: workplace safety, forensic analysis, food safety, pharmaceutical manufacture, and drinking water qualities.
产品说明: 蒸汽侵入是挥发性有机化学品从地下迁移到上覆建筑物中,是大量人口接触危险化学品的主要原因。为了评估暴露于蒸汽侵入化合物的健康影响,需要监测室内空气。 传统的蒸汽侵入监测是通过现场样品收集,然后进行实验室分析来完成的。常规方法的缺点包括:需要样品回收、延长的处理时间、不能充分跟踪浓度随时间的变化以及高成本。 需要可以安装或操作并提供连续和/或短期测量的便携式分析方法来解决这些问题。该第二阶段小型企业创新研究提案通过一种紧凑的基于毛细管的采样和检测方法解决了这一需求,该方法与便携式傅里叶变换红外(FTIR)光谱仪结合使用时,可以检测低浓度和高选择性的蒸汽侵入化合物。该方法结合了固相萃取的进展,并利用了光波导的新型涂层。该方法与大多数其他检测方法不同,因为它提供了明确识别化合物的化学特征。其他优势包括:紧凑/便携式尺寸,接近实时结果,易于自动化,所需专业知识最少,无试剂,无溶剂和嵌入式遥测。第一阶段的研究成功地证明了该方法的可行性,通过检测氯化蒸汽侵入化合物在低十亿分之一的水平。建议进行第二阶段后续研究,重点是了解用于选择性检测的关键组件的能力,并解决功能便携式设备组装所需的方法。该研究将在超级基金现场表征设备的性能。这项研究的影响超出了对蒸汽入侵监测的直接关注。样品制备方法的改进可以应用于任何需要便携式现场分析的地方,例如:工作场所安全,法医分析,食品安全,制药和饮用水质量。
项目成果
期刊论文数量(0)
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BIKAS VAIDYA其他文献
BIKAS VAIDYA的其他文献
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$ 48.47万 - 项目类别:
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7271013 - 财政年份:2005
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