Probing the Fate and Transport of PFAS in Urban Soils: Insights from ASE-LC-HR/MS Analysis

Journal of Hazardous Materials, Год журнала: 2025, Номер 494, С. 138635 - 138635

Опубликована: Май 20, 2025

Язык: Английский

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Approaches towards sensitive and reliable determination of trifluoroacetic acid (TFA) from German grass- and farmland soils

Chemosphere, Год журнала: 2025, Номер 382, С. 144496 - 144496

Опубликована: Май 24, 2025

Язык: Английский

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Perfluoroalkyl substances (PFAS) occurrence, concentrations and spatial distribution along the French Mediterranean coast and lagoons, based on active biomonitoring

Marine Pollution Bulletin, Год журнала: 2024, Номер 202, С. 116419 - 116419

Опубликована: Апрель 26, 2024

Язык: Английский

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Comprehensive nontargeted analysis of fluorosurfactant byproducts and reaction products in wastewater from semiconductor manufacturing

Sustainable Environment Research, Год журнала: 2024, Номер 34(1)

Опубликована: Июль 15, 2024

Abstract Semiconductor manufacturing employs per- and polyfluoroalkyl substances (PFAS) as fluoroasurfactants to enhance the quality of photolithography lines. Our research, employing a fragment-based approach investigate nontarget PFAS, overcomes conventional homologous series limitations. In mixture PFAS standards used control sample, 92% (36 out 39 compounds spanning 11 compound classes) were detectable through procedure. This indicates effectiveness this in identifying hydrophobic hydrophilic characteristics various fluorosurfactants. Eighty-three detected wastewater effluent samples from semiconductor industry, including 29 newly discovered compounds, categorized into three groups. First, besides detecting perfluorobutane sulfonamido ethanol (FBSE), fluoroalkyl chain structures FBSE derivatives initially identified wastewater. These include perfluorobutyl ether ethanol, unsaturated FBSE, hydrogen-substituted FBSE. also trace amounts commercial authentic To quantify their presence, we analyzed standard, relative proportions these contribute approximately 0.5%. suggests that derivative may arise byproducts chemical formulations semiconductors. Second, transformation products during oxidation, first intermediate acetaldehyde its hydrate, discovered. Third, diverse reaction are generated intricate processes manufacturing, which utilize strong acids, bases, solvents under UV light or heated conditions. formation PFAS-related hydration, sulfonation, nitrification. study revealed 25 isomeric encompassing headgroup isomers functional tail group isomers. findings underscore importance comprehending reactions overall emission compositions wastewater, highlighting complexity presenting challenges for subsequent treatment.

Язык: Английский

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Persulfate based total oxidizable precursor (TOP) assay approaches for advanced PFAS assessment in the environment ̶ a review

Trends in Environmental Analytical Chemistry, Год журнала: 2024, Номер unknown, С. e00242 - e00242

Опубликована: Окт. 1, 2024

Язык: Английский

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