Filling the Gaps in PFAS Detection: Integrating GC-MS Non-Targeted Analysis for Comprehensive Environmental Monitoring and Exposure Assessment

Environmental Science & Technology Letters, Journal Year: 2025, Volume and Issue: 12(2), P. 104 - 112

Published: Jan. 23, 2025

Per- and polyfluoroalkyl substances (PFAS) have garnered increasing attention in recent years, non-targeted analysis (NTA) has become essential for elucidating novel PFAS structures. NTA research been dominated by liquid chromatography–mass spectrometry (LC-MS) with gas (GC-MS) used less often as evidenced bibliometrics. However, the performance of GC-MS studies (GC-NTA) rivals that LC-ESI-MS, is shown to cover a complementary chemical space. An LC-ESI-MS amenability model applied list approximately 12,000 revealed than 10% known chemistry predicted be amenable typical LC-MS analysis. Therefore, there strong potential applying methods more fully assess environmental contamination landscape, uniquely shedding light on both PFAS, especially within space realm volatile semivolatile PFAS. Waste streams from fluorochemical manufacturing facilities heavily studied using targeted GC-MS; however, GC-NTA needed discover are not emitted facilities. Studies incineration PFAS-containing materials, such aqueous film forming foam, focused destruction parent compounds, little about transformation products formed during processes. holds elucidate when incinerated. Wastewater treatment plants landfills sources environment, yet understand air emissions these sources. Consumer lead indoor exposures via dust, but this area either or GC-MS. Despite challenges advancing GC-NTA, we call researchers, grantors, managers, other stakeholders recognize necessity so may face together.

Language: Английский

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Updated review on current approaches and challenges for poly- and perfluoroalkyl substances removal using activated carbon-based adsorbents

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105625 - 105625

Published: June 14, 2024

Language: Английский

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PFAS in Landfill Leachate: Practical Considerations for Treatment and Characterization

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: unknown, P. 136685 - 136685

Published: Nov. 1, 2024

Language: Английский

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Per- and polyfluoroalkyl substances in environment and potential health impacts: Sources, remediation treatment and management, policy guidelines, destructive technologies, and techno-economic analysis

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 969, P. 178803 - 178803

Published: Feb. 27, 2025

Language: Английский

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Unraveling the Exposure Spectrum of PFAS in Fluorochemical Occupational Workers: Structural Diversity, Temporal Trends, and Risk Prioritization

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Despite extensive poly/perfluoroalkyl substance (PFAS) discovery studies in various samples, the exposure spectrum fluorochemical occupational workers remains largely unexplored. Here, serum samples from 28 at a facility were analyzed using nontarget techniques, identifying 64 PFAS classes, including 15 novel ones such as pentafluorosulfur ether-substituted perfluoroalkyl sulfonic acids, hydrogen-substituted perfluoroalkylamines, and perfluoroalkylsulfonyl protocatechualdehyde esters. Temporal trend analyses (2008–2018) revealed stable levels for most but an increase perfluorobutanoic acid (PFBA) perfluorohexanesulfonic (PFHxS), suggesting industrial shifts long-chain to short-chain homologues China since early 2010s. Commonly reported structurally modified (e.g., hydrogen/carbonyl/chlorine substitution, ether insertion, unsaturation) likely historical byproducts of legacy production rather than intentionally manufactured alternatives. A Toxicological Priority Index-based risk assessment, integrating mobility, persistence, bioaccumulation indices, identified di(perfluoroakyl sulfonyl)imides, acids/carboxylic perfluoroalkylsulfonamidoacetic acids high-risk chemicals. Overall, exhibited higher mobility lower persistence PFAS, except chlorinated variants, which showed increased potential. This study highlights critical gaps historically emitted emphasizes need large-scale monitoring assessments manage emerging PFAS.

Language: Английский

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Rethink biosolids: Risks and opportunities in the circular economy

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161749 - 161749

Published: March 1, 2025

Language: Английский

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Techno-economic analysis of proton exchange membrane fuel cell recycling through pyro- and hydrometallurgy

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145432 - 145432

Published: April 1, 2025

Language: Английский

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Recent advances in activated carbon driven PFAS removal: structure-adsorption relationship and new adsorption mechanisms

Frontiers of Environmental Science & Engineering, Journal Year: 2025, Volume and Issue: 19(6)

Published: April 15, 2025

Language: Английский

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“A review of PFAS remediation: Separation and degradation technologies for water and wastewater treatment”

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 74, P. 107793 - 107793

Published: April 27, 2025

Language: Английский

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Confronting PFAS persistence: enzymes catalyzing C–F bond cleavage

Trends in Biochemical Sciences, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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