New PFASs Identified in AFFF Impacted Groundwater by Passive Sampling and Nontarget Analysis

Environmental Science & Technology, Год журнала: 2024, Номер 58(3), С. 1690 - 1699

Опубликована: Янв. 8, 2024

Monitoring contamination from per- and polyfluoroalkyl substances (PFASs) in water systems impacted by aqueous film-forming foams (AFFFs) typically addresses a few known PFAS groups. Given the diversity of PFASs present AFFFs, current analytical approaches do not comprehensively address range these systems. A suspect-screening nontarget analysis (NTA) approach was developed applied to identify novel groundwater samples contaminated historic AFFF use. total 88 were identified both passive samplers grab samples, dominated sulfonate derivatives sulfonamide-derived precursors. Several ultrashort-chain (USC) (≤C3) detected, 11 reported for first time Australian groundwater. transformation products identified, including perfluoroalkane sulfonamides (FASAs) sulfinates (PFASis). Two new (((perfluorohexyl)sulfonyl)sulfamic acid; m/z 477.9068 (E)-1,1,2,2,3,3,4,5,6,7,8,8,8-tridecafluorooct-6-ene-1-sulfonic 424.9482). This study highlights that several are overlooked using standard target analysis, therefore, potential risk all is likely be underestimated.

Язык: Английский

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Water Analysis: Emerging Contaminants and Current Issues

Analytical Chemistry, Год журнала: 2024, Номер 96(20), С. 8184 - 8219

Опубликована: Май 3, 2024

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTWater Analysis: Emerging Contaminants and Current IssuesSusan D. Richardson*Susan RichardsonDepartment of Chemistry Biochemistry, University South Carolina, JM Palms Center for GSR, 631 Sumter Street, Columbia, Carolina 29208, United States*[email protected]More by Susan RichardsonView Biographyhttps://orcid.org/0000-0001-6207-4513 Tarek ManasfiTarek ManasfiEawag, Environmental Chemistry, Uberlandstrasse 133, Dubendorf 8600, SwitzerlandMore ManasfiView BiographyCite this: Anal. Chem. 2024, 96, 20, 8184–8219Publication Date (Web):May 3, 2024Publication History Received16 March 2024Accepted16 April 2024Revised14 2024Published online3 May inissue 21 2024https://pubs.acs.org/doi/10.1021/acs.analchem.4c01423https://doi.org/10.1021/acs.analchem.4c01423review-articleACS PublicationsCopyright © 2024 American Chemical SocietyRequest reuse permissionsArticle Views826Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum full text article downloads since November 2008 (both PDF HTML) across all institutions individuals. These metrics regularly updated to reflect usage leading up last few days.Citations number other articles citing this article, calculated Crossref daily. Find more information about citation counts.The Altmetric Attention Score is a quantitative measure attention that research has received online. Clicking on donut icon will load page at altmetric.com with additional details score social media presence given article. how calculated. Share Add toView InAdd Full Text ReferenceAdd Description ExportRISCitationCitation abstractCitation referencesMore Options onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose SUBJECTS:Drinking water,Extraction,Impurities,Liquid chromatography,Mass spectrometry Get e-Alerts

Язык: Английский

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Suspect, Nontarget Screening, and Toxicity Prediction of Per- and Polyfluoroalkyl Substances in the Landfill Leachate

Environmental Science & Technology, Год журнала: 2024, Номер 58(10), С. 4737 - 4750

Опубликована: Фев. 26, 2024

Landfills are the final stage of urban wastes containing perfluoroalkyl and polyfluoroalkyl substances (PFASs). PFASs in landfill leachate may contaminate surrounding groundwater. As major environmental pollutants, emerging have raised global concern. Besides widely reported legacy PFASs, distribution potential toxic effects numerous remain unclear, unknown still need discovery characterization. This study proposed a comprehensive method for PFAS screening samples using suspect nontarget analysis. A total 48 from 10 classes were identified; nine novel including eight chloroperfluoropolyether carboxylates (Cl-PFPECAs) bistriflimide (HNTf2) first time leachate, where Cl-PFPECA-3,1 Cl-PFPECA-2,2 media. Optimized molecular docking models established prioritizing with activity against peroxisome proliferator-activated receptor α estrogen α. Our results indicated that several

Язык: Английский

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Unveiling per- and polyfluoroalkyl substance contamination in Chinese paper products and assessing their exposure risk

Environment International, Год журнала: 2024, Номер 185, С. 108540 - 108540

Опубликована: Фев. 28, 2024

The contamination characteristics, migration patterns and health risks of per- polyfluoroalkyl substances (PFAS) were investigated in 66 Chinese paper products by using target non-target screening methods. Among 57 PFASs, 5 6 PFASs found the hygiene (

Язык: Английский

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Antibiotic resistome in landfill leachate and impact on groundwater

The Science of The Total Environment, Год журнала: 2024, Номер 927, С. 171991 - 171991

Опубликована: Март 26, 2024

Язык: Английский

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Development of a Nontargeted Algorithm for Per- and Polyfluoroalkyl Substances in the FT-ICR Mass Spectra of Complex Organic Mixtures

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

The unrivaled mass resolving power and subppm error enable the application of Fourier transform ion cyclotron resonance spectrometry (FT-ICR MS) for nontargeted screening per- polyfluoroalkyl substances (PFAS). Few automated FT-ICR MS methods exist analysis PFAS in solutions containing other dissolved organic matter. In this study, isotopic pattern dynamic homologous series inspection were complementarily employed FTMSDeu algorithm to simultaneously assign chemical formulas molecules, with an overall assignment accuracy 91.2% 1,802 unique their 11,634 formulas. negative effects fluorine-related isobaric isotopes sub-mDa differences on formula natural matter addressed by empirical F/(H + X) rule adoption a threshold number plus number. There 203 one novel formula, C9H6O4S1I1F11, identified fluoropolymer industry-impacted river water sample using our analyzing spectra. Overall, results study highlighted great potential updated high-throughput spectra complex mixtures from real environmental samples.

Язык: Английский

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A critical review of the occurrence, fate and treatment of per- and polyfluoroalkyl substances (PFASs) in landfills

Environmental Research, Год журнала: 2022, Номер 218, С. 114980 - 114980

Опубликована: Ноя. 29, 2022

Язык: Английский

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Per- and Polyfluoroalkyl Substances in Personal Hygiene Products: The Implications for Human Exposure and Emission to the Environment

Environmental Science & Technology, Год журнала: 2023, Номер 57(23), С. 8484 - 8495

Опубликована: Июнь 1, 2023

Per- and polyfluoroalkyl substances (PFAS) have been related to reproductive toxicity in humans, but their occurrence some specific personal hygiene products, i.e., sanitary pads, panty liners, tampons, paper diapers, menstrual cups, bactericidal liquids, has not extensively studied. This work investigated 31 representative PFAS six categories of such products (

Язык: Английский

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Target and Suspect Screening Integrated with Machine Learning to Discover Per- and Polyfluoroalkyl Substance Source Fingerprints

Environmental Science & Technology, Год журнала: 2023, Номер 57(38), С. 14351 - 14362

Опубликована: Сен. 11, 2023

This study elucidates per- and polyfluoroalkyl substance (PFAS) fingerprints for specific PFAS source types. Ninety-two samples were collected from aqueous film-forming foam impacted groundwater (AFFF-GW), landfill leachate, biosolids municipal wastewater treatment plant effluent (WWTP), the pulp paper power generation industries. High-resolution mass spectrometry operated with electrospray ionization in negative mode was used to quantify up 50 target PFASs screen semi-quantify 2,266 suspect each sample. Machine learning classifiers identify that diagnostic of type. Four C5–C7 perfluoroalkyl acids one (trihydrogen-substituted fluoroethernonanoic acid) AFFF-GW. Two (5:3 6:2 fluorotelomer carboxylic acids) two (4:2 fluorotelomer-thia-acetic acid N-methylperfluoropropane sulfonamido acetic leachate. Biosolids leachates best classified along N-methyl N-ethyl perfluorooctane assisted classification. WWTP, paper, contained few PFASs, but fipronil (a fluorinated insecticide) WWTP samples. Our results provide known sources can be allocation.

Язык: Английский

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Sorptive removal of per- and polyfluoroalkyl substances (PFAS) in organic-free water, surface water, and landfill leachate and thermal reactivation of spent sorbents

Journal of Hazardous Materials Advances, Год журнала: 2023, Номер 10, С. 100311 - 100311

Опубликована: Май 1, 2023

This study evaluated the performance of five commercially available granular activated carbons (GACs) derived from different sources for removal short-chain and long-chain per- polyfluoroalkyl substances (PFAS) raw pretreated landfill leachate using ozonation to break down organic substances. The adsorption isotherms PFAS on GAC in organic-free water surface were also established understand effect chemistry. results demonstrated that bituminous GACs have highest capacity compared made coconut shells lignite coal. was two orders magnitude lower than water. Pretreatment by moderately increased GAC. is first time isotherm data are mainstream samples. Such can be used design a treatment system removing leachate. Furthermore, our showed contaminated with could effectively regenerated conventional muffle tube furnaces, indicating presence other has no significant impact reactivation Lastly, indicate induction heating an efficient rapid method thermally reactivating various PFAS.

Язык: Английский

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