Target and Suspect Screening Reveal PFAS Exceeding European Union Guideline in Various Water Sources South of Lyon, France

Environmental Science & Technology Letters, Год журнала: 2025, Номер 12(3), С. 327 - 333

Опубликована: Фев. 7, 2025

Lyon, a major hub for chemical industries in France, has been identified as contamination hotspot of per- and polyfluoroalkyl substances (PFAS). Major companies the Pierre-Bénite area have used PFAS production fluoropolymers fluorotelomers, with effluents discharged into Rhône River. This together other sources, such firefighting foam use at vicinal harbor oil depot, likely resulted complex signature. study investigated various water sources southern including ponds, rivers, factory channels, wells, springs, tap water. Out 47 samples, 22 had Σ77PFAS above 100 ng/L (maximum: ∼700 ng/L), 67% samples exceeded European guideline Σ20PFAS. Target profiles were dominated by perfluoroalkyl carboxylates (particularly C4 to C8), agreement their historical or current industrial usage. Suspect screening also revealed occurrence electrochemical fluorination precursors N-sulfopropyldimethylammoniopropyl perfluorohexanesulfonamido acetic acid (N-SPAmP-FHxSAA) bistriflimide (used composition ionic liquids). Certain ESI+ (e.g., 6:2 fluorotelomer sulfonamidopropyl betaine (6:2 FTAB)) ESI- FTS, FTSAS-sulfone) compounds, more prevalent surface than groundwater.

Язык: Английский

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What Do We Know About Per- or Polyfluoroalkyl Substances (PFASs)? Issues, Challenges, Regulations, and Possible Alternatives

Macromolecules, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Per- or polyfluoroalkyl substances (PFASs) are man-made compounds involved in compositions of many industrial processes and consumer products. They categorized into two main families based on their molar mass: though low mass products (<1000 Da) toxic, mobile, bioaccumulable, cross the human membranes, others much higher masses, e.g., fluorinated macromolecules especially fluoropolymers, safe reliable, do not face such concerns, membranes (hence, they regarded as Polymers Low Concern), applications including medical high-value-added materials devices. Because former family has led to a severe global contamination, recent regulating agencies Europe (REACH) USA (EPA) have aimed at restricting fluorochemicals. Recently, consultations from affected organisms industries more than 5600 answers comments. This review supplies an update overall situation PFASs, limitations, regulations, end life, degradations, possible alternatives.

Язык: Английский

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Comprehensive analysis of PFAS presence from environment to plate

npj Science of Food, Год журнала: 2024, Номер 8(1)

Опубликована: Окт. 6, 2024

Per- and polyfluoroalkyl substances (PFAS) pose an emerging environmental risk impacting food products ecosystems. This study analyzes over 150,000 entries from safety authorities scientific publications 2017 onwards. Our findings show that fish & seafood, biota have the highest PFAS concentrations due to contamination bioaccumulation. Surface water samples also frequently contain PFAS, raising concerns about long-term ecological human health effects. Comprehensive strategies are essential mitigate these risks.

Язык: Английский

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Emergency of per- and polyfluoroalkyl substances in drinking water: Status, regulation, and mitigation strategies in developing countries

Eco-Environment & Health, Год журнала: 2024, Номер 3(3), С. 355 - 368

Опубликована: Июнь 27, 2024

The detection of per- and polyfluoroalkyl substances (PFAS) in water presents a significant challenge for developing countries, requiring urgent attention. This review focuses on understanding the emergence PFAS drinking water, health concerns, removal strategies systems countries. indicates need more studies to be conducted many nations due limited information environmental status fate PFAS. consequences are enormous cannot overemphasized. Efforts ongoing legislate national standard water. Currently, there few known mitigation efforts from African contrast several Asia. Therefore, is an develop economically viable techniques that could integrated into large-scale operations remove region. However, despite success achieved with removing long-chain required eliminating short-chain moieties

Язык: Английский

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The accurate determination of Perfluorooctane sulfonic acid (PFOS) removal efficiency by integrated-sonochemical system

Ultrasonics Sonochemistry, Год журнала: 2025, Номер 113, С. 107222 - 107222

Опубликована: Янв. 5, 2025

Perfluorooctanesulfonic acid (PFOS) is one of the most investigated Per- and polyfluoroalkyl substances (PFAS) for being strongest compound to eliminate having adverse health concerns. In this work, we have conducted sonochemical treatment PFOS simulated water under high (500 kHz) low (22 frequencies while monitoring operational parameters via an integrated system. The advanced system includes software monitor power, solution temperature frequency allowing distinctive control reaction conditions. Considering lack calorimetric measurements in earlier studies difficulty achieving comparative outcomes, precise determination electrical energy per order (EEO) were performed study. complete removal was achieved 500 kHz with optimum including initial pollutant concentration (5 mg/L), ultrasound power density (400 W/L) (25 °C) within 180 min treatment. mineralization extents (defluorination) determined by ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS/MS) ion-chromatography (IC) analysis. Under conditions, 100 % 99 achieved. rate constant (k) ranged from 0.011 0.031 min-1 (first-order reaction), which increased increase density. While did not significantly affect efficiency, found a prominent effect on constant. However, experiments at showed negligible efficiency. specific requirement reaching 90 considering consumed ultrasonic main source be 700 kWh/m3, much lower than other reported work similar This will useful both laboratory industrial upscaling acting as benchmark reference follow.

Язык: Английский

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Eutectic Solvent Mixtures in Environmental Contaminants Analysis: A Review on Current Trends and Future Perspectives

Green Analytical Chemistry, Год журнала: 2025, Номер unknown, С. 100220 - 100220

Опубликована: Фев. 1, 2025

Язык: Английский

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Review on the need for inventories and management of reservoirs of POPs and other persistent, bioaccumulating and toxic substances (PBTs) in the face of climate change

Environmental Sciences Europe, Год журнала: 2025, Номер 37(1)

Опубликована: Март 22, 2025

Язык: Английский

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Designing Electrodes with No Ionomers: A Perspective on Ionomer-Free Electrodes for Proton-Exchange-Membrane Water Electrolyzers

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Язык: Английский

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Unveiling PFAS hazard in European surface waters using an interpretable machine-learning model

Environment International, Год журнала: 2025, Номер unknown, С. 109504 - 109504

Опубликована: Апрель 1, 2025

Язык: Английский

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Challenges and opportunities for porous media research to address PFAS groundwater contamination

InterPore journal., Год журнала: 2024, Номер 1(2), С. ipj240824 - 2

Опубликована: Авг. 24, 2024

Per- and polyfluoroalkyl substances (PFAS) have become one of the most important contaminants due to their ubiquitous presence in environment potentially profound impacts on human health even at parts per trillion (ppt) concentration levels. A growing number field investigations revealed that soils act as PFAS reservoirs many contaminated sites, with significant amounts accumulating over several decades. Because accumulated may migrate downward contaminate groundwater resources, understanding fate transport is paramount importance for characterizing, managing, mitigating long-term contamination risks. Many are surfactants adsorb air–water solid–water interfaces, which leads complex behaviors soils. Concomitantly, present porewater can modify surface tension other interfacial properties, turn impact variably saturated flow transport. Furthermore, some volatile (i.e., gas phase) and/or transform under environmental conditions into persistent PFAS. These nonlinear coupled processes further complicated by complexities soil such thin water films, spatial heterogeneity, geochemical conditions. In this commentary, we an overview current challenges environment. Building upon that, identify a few potential areas where porous media research play role addressing problem groundwater.

Язык: Английский

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