Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 49 for “"Polyfluoroalkyl substances (PFAS)"”.
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Biological and bioelectrochemical defluorination of per- and polyfluoroalkyl substances (PFAS)
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-08-01
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Transport of Per- and Polyfluoroalkyl Substances (PFAS) at a Managed Aquifer Recharge Site
… transport and attenuation of selected per- and polyfluoroalkyl substances (PFAS) in groundwater at the SRC. The transport of seven PFAS detected at the SRC is examined in this study: perfluorobutanoic acid (PFBA), perfluorobutane sulfonic acid (PFBS), perfluoropentanoic acid (PFPeA), …
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Design of a Portable Device to Detect Per- and Polyfluoroalkyl Substances (PFAS) in Water
PFAS or per- and polyfluoroalkyl substances are a group of man made chemicals used since the 1940s. The chemicals are highly stable and build up in the environment and organic systems. They can also cause several health problems in humans at high concentrations causing them to be a chemical of …
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Occurrence of Per- and Polyfluoroalkyl Substances (PFAS) in Private Water Supplies in Southwest Virginia
Per- and polyfluoroalkyl substances (PFAS) are a class of man-made contaminants of increasing human health concern due to their resistance to degradation, widespread occurrence in the environment, bioaccumulation in human and animal organ tissue, and potential negative health impacts. Drinking …
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Adsorption of Single and Multi-Component Per-and Polyfluoroalkyl Substances (PFAS) at Air-Water Interfaces
Per- and polyfluoroalkyl substances (PFAS) are a class of fluorinated chemicals that are highly persistent in the environment, pose significant health risks, and are widespread due to their use in consumer products and fire-fighting foams. The purpose of this study was to investigate the transport …
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Geospatial Trends of Per- and Polyfluoroalkyl Substances (PFAS) Incidence in Private Drinking Water in Virginia
Per- and polyfluoroalkyl substances (PFAS) are a class of synthetic organic compounds that are hydrophobic, thermally stable, and resistant to environmental degradation. Widespread industrial and household use has resulted in frequent environmental and drinking water detection, raising concerns …
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Per- and Polyfluoroalkyl Substances (PFAS) in Air, Water, and Soil and Their Impact on Air Quality
Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals of growing environmental and public health concern due to their persistence and toxicity. This study focuses on fluorotelomer alcohols (FTOHs) and fluorotelomer acrylates (FTAcrs), key volatile PFAS classes, for which ambient air …
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Evaluation of the degradation of per- and polyfluoroalkyl substances (PFAS) using UV-activated silica-based granular media (UV/SGM)
Per- and polyfluoroalkyl substances (PFAS) have become ubiquitous in the environment through production, industrial use, and consumer use. PFAS are recalcitrant, persistent, and bioaccumulative contaminants of concern which are present in many solid and liquid sources. PFAS have been detected in …
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The effects of per- and polyfluoroalkyl substances (PFAS) and high fat diet on metabolism, reproductive health & prostate cancer progression
Per- and polyfluoroalkyl substances (PFASs) are a group of synthetic chemicals that have been utilized in various industries and settings. Their resistance to water, oil, grease, and extreme temperatures enabled utilization of PFAS in adhesives, cleaning-products, paints, coatings, packaging, …
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Toward improved in vitro models for human health risk assessment : mechanisms of short-chain per- and polyfluoroalkyl substances (PFAS) toxicity.
… by the widespread contamination of per- and polyfluoroalkyl substances (PFAS) worldwide. Despite their extensive use in various consumer products, the persistent and toxic nature of PFAS was not fully understood until after their global dissemination. As scientific knowledge advanced and …
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Exploring the heterogeneous uptake of gas-phase PFCAs to the condensed phase
… carboxylic acids (PFCAs) are a class of per- and polyfluoroalkyl substances (PFAS) which are completely fluorinated, accompanied by a carboxylic head functional group. With varying toxic effects on animals, plants, and humans, it has become imperative to understand the fate of these compounds in …
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IMPROVING CANNABIS SATIVA'S PHYTOREMEDIATION CAPABILITIES OF FOREVER CHEMICALS THROUGH MICROBIAL INOCULATIONS
<p>Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants that pose ecological and human health risks due to their resistance to degradation and potential for bioaccumulation. Phytoremediation has emerged as a potential strategy for mitigating PFAS contamination, and …
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Surface Modification Of Exhausted Activated Carbon For The Enhanced Removal Of Per- And Polyfluoroalkyl Substances
… (MCL) has been proposed for a group of per- and polyfluoroalkyl substances (PFAS), a class of chemicals that have been used in many consumer products and industrial applications. GAC is capable of the treatment of PFAS below the MCL, but in many water sources competing contaminants are present …
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Acetylene Functionalized Photocatalytic COFs for PFAS Adsorption and Degradation
… have been successful in dealing with per- and polyfluoroalkyl substances (PFAS) due to the strong binding between fluorine and carbon atoms. The challenge is designing COFs that include electron-rich rings with a suitable pore size to absorb and degrade the contaminants. Herein, we demonstrate …
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Removal of Per- and Poly-fluoroalkyl Substances (PFAS) from Water: A Computational Approach
Per- and polyfluoroalkyl substances (PFAS) are persistent synthetic compounds widely detected in the environment due to the exceptional stability of the carbon–fluorine bond, posing significant risks to human health and ecosystems. This dissertation develops a multiscale framework for PFAS …
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Expanding the Capabilities of Paper Spray Mass Spectrometry: High-Throughput Drug Screening and On-Paper Electrokinetic Stacking
… devices to detect low levels of per- and polyfluoroalkyl substances (PFAS) in tap water and drugs of abuse in urine. These applications demonstrate substantial enhancements in sensitivity over conventional PS-MS, while preserving the technique's advantage of minimal sample preparation. …
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Essays on Industrial Pollution, Regulation, and Health
… first statewide policy regulating Per- and Polyfluoroalkyl Substances (PFAS) in drinking water on mortality and healthcare utilization among residents exposed to industrial pollution. Using a difference-in-differences design that exploits proximity to polluting manufacturing facilities, I …
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Nanomaterials from lignocellulosic biomass : tailorable synthesis via surface functionalization and self-assembly mechanisms
… and cost-effective adsorbents in per- and polyfluoroalkyl substances (PFAS) removal.
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Evaluation of hybrid treatment configurations of granular activated carbon and alternative adsorbents for per- and polyfluoroalkyl substances removal from surface water and groundwater
Per- and polyfluoroalkyl substances (PFAS) have emerged as a significant global environmental concern due to their persistence, ubiquitous presence, and associated human health hazards. As a result, regulatory agencies worldwide have enacted stringent drinking water standards to mitigate human …
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Navigating the Unregulated: A Multi-Tiered Public Health Risk Assessment of PFAS and N-DBPs Utilizing Unregulated Contaminant Monitoring Rule Data
Per- and polyfluoroalkyl substances (PFAS) and nitrogenous disinfection byproducts (N-DBPs) are significant drivers of genotoxic and non-genotoxic health risks, primarily through the ingestion of drinking water containing these contaminants. While risk depends on individual chemical properties …
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