Overview of Per- and Polyfluoroalkyl Substances (PFAS), Their Applications, Sources, and Potential Impacts on Human Health

Pollutants, Journal Year: 2024, Volume and Issue: 4(1), P. 136 - 152

Published: March 6, 2024

Per- and polyfluoroalkyl substances (PFAS) belong to a group of synthetic compounds that have recently raised concerns about human health environmental quality due their great prevalence, degradation resistance, potential toxicity. This review focuses on the applications PFAS effects health. Specific emphasis has been laid (i) application/use PFAS, (ii) sources distribution in diverse compartments, (iii) impact Significant humans are associated with exposure i.e., immunotoxicity, thyroid kidney disorders, cancer, etc. Conclusions obtained from studies demonstrate inadequate evidence should not be used justify delaying risk reduction steps for alternatives. can determined different matrices using both traditional analytical approaches, liquid chromatography coupled mass spectrometry (LC-MS/MS) semi-quantitative passive sampling, advanced methods colorimetric, spectrofluorimetric, electrochemical detection. Traditional costly broadly available, while emerging, cost-effective less sensitive unable meet regulatory limits. There is still significant number performed fully comprehend real contamination by PFAS.

Language: Английский

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Contamination of the terrestrial food chain by per- and polyfluoroalkyl substances (PFAS) and related human health risks: A systematic review

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 961, P. 178337 - 178337

Published: Jan. 1, 2025

PFAS contamination is a global issue, affecting various food sources, especially animal-based products like eggs and dairy. Collect scientific evidence of the presence in diverse edible resources along with related risks to human health, pursuing following objectives: determination level terrestrial chain contamination; health risk. Scopus, PubMed, Web Science databases. 4952 papers published from January 2013 August 2024 were retrieved at end selection process, 40 studies included. Clear description methodology used for detection; relevance or species, their parts, intended consumption; assessment Higher number China, 17, Italy 6 studies. The most detected PFOA PFOS. PFOS was maximum concentration about ng/g 2.5 ng/g, muscles cow pork, respectively. Among animal products, contaminated higher than 100 ng/g. For PFBS ranged 35 up 45 In vegetables, highest per- polyfluoroalkyl root, fruit, leaf vegetables 60 as PFBA. Daily Intake (DI) values toddlers, whereas lowest adult population. Concerning total diet, DI 30 (ng/kg bw/day) 90 bw/day). widespread PFAS, need new strategies reduce chains, emphasized. Gaps legislation limits detection methods also noted.

Language: Английский

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Ecological risk of per- and polyfluorinated alkyl substances in the phytoremediation process: a case study for ecologically keystone species across two generations

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 174962 - 174962

Published: July 26, 2024

Language: Английский

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Forever Chemicals, Per-and Polyfluoroalkyl Substances (PFAS), in Lubrication

Lubricants, Journal Year: 2024, Volume and Issue: 12(4), P. 114 - 114

Published: March 29, 2024

Per- and polyfluoroalkyl substances (PFAS), also known as forever chemicals, exhibit exceptional chemical stability resistance to environmental degradation thanks their strong C-F bonds nonpolar nature. However, widespread use persistence have a devastating impact on the environment. This review examines roles of PFAS in tribological applications, specifically lubricants lubricating systems. article focuses conventional advanced lubricants, including ionic liquids (ILs) modern automotive vehicles. The objective this paper is provide comprehensive overview adverse impacts whilst acknowledging outstanding performance surface coatings, composite materials, additives oils greases. pathways through which are introduced into environment via systems such seals O-rings identified, alongside subsequent dispersion routes interfaces across they interact. Furthermore, we examine toxicological implications exposure terrestrial aquatic life forms, plants, animals, humans, along with ecological consequences bioaccumulation biomagnification trophic levels ecosystems. ends potential remediation strategies for use, treatment technologies, biodegradation, recovery recycling methods, search more environmentally benign alternatives.

Language: Английский

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Influence of soil composition and environmental factors on the adsorption of per- and polyfluoroalkyl substances: A review

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 925, P. 171785 - 171785

Published: March 18, 2024

Language: Английский

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Advances in the Removal of Polyfluoroalkyl Substances (PFAS) from Water using Destructive and Non-Destructive Methods

Green Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100225 - 100225

Published: Feb. 1, 2025

Language: Английский

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PFAS occurrence and distribution in yard waste compost indicate potential volatile loss, downward migration, and transformation

Environmental Science Processes & Impacts, Journal Year: 2024, Volume and Issue: 26(4), P. 657 - 666

Published: Jan. 1, 2024

We discovered high concentrations of PFAS (18.53 ± 1.5 μg kg

Language: Английский

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Electrosorption-Driven Remediation of PFAS-Contaminated Water Using a MXene Nanosheet-PEDOT:PSS Adsorbent

ACS Applied Engineering Materials, Journal Year: 2024, Volume and Issue: 2(2), P. 368 - 375

Published: Feb. 8, 2024

Perfluoroalkyl substances (PFAS), widely used for their chemical and thermal stability in various industrial applications, have raised environmental health concerns due to ubiquitous presence water sources. Stringent regulations targeting long-chain PFAS been enacted, but emerging evidence indicates risks associated with short-chain PFAS. Adsorption stands out as a viable remediation technology PFAS-containing water. Electric-field-aided adsorption (electrosorption) emerges technique that has demonstrated it can adsorb from enable on-demand desorption of the retained upon alternating applied voltage. Effective electrosorption demands adsorbents significant specific surface area, capacitance, durability. Two-dimensional transition metal carbides nanotrides (MXene) are competitive candidates. MXene, conjunction poly(3,4-ethylene dioxythiophene) polystyrenesulfonate (PEDOT:PSS), exhibit increased area capacitance. This study develops titanium carbide (Ti3C2Tx) MXene-PEDOT:PSS adsorbent electrosorption. Acid etching enhances adsorbent's pore characteristics, resulting an approximately 400% increase volumetric capacitance compared untreated counterparts. The capacity perfluorohexanoic acid (PFHxA), perfluorooctanoic (PFOA), perfluorononanoic (PFNA) is measured at 45.6, 51.1, 54.9 mg/g, respectively, initial concentration 750 ppb application +1.0 V. reversible adsorption–desorption cycles demonstrate potential repeated use adsorbent. We envision contribute development efficient sustainable technologies addressing contamination

Language: Английский

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Aminated clay-polymer composite as soil amendment for stabilizing the short- and long-chain per- and poly-fluoroalkyl substances in contaminated soil

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 472, P. 134470 - 134470

Published: May 3, 2024

Soils contaminated with per- and poly- fluoroalkyl substances (PFAS) require immediate remediation to protect the surrounding environment human health. A novel animated clay-polymer composite was developed by applying polyethyleneimine (PEI) solution onto a montmorillonite clay-chitosan polymer composite. The resulting product, PEI-modified chitosan beads (MMTCBs) were characterized as an adsorptive soil amendment for immobilizing PFAS contaminants. MMTCBs exhibited good efficiency adsorb PFAS, showing adsorption capacities of 12.2, 16.7, 18.5, 20.8 mg g−1 PFBA, PFBS, PFOA, PFOS, respectively, which higher than those obtained granular activated carbon (GAC) (i.e., adsorbent used reference). Column leaching tests demonstrated that amending 10% resulted in substantial decrease PFBS 90%, 100%, 64%, 68%, respectively. These reductions comparable values GAC-modified soil, particularly long-chain PFAS. Incorporating into not only preserved structural integrity matrix but also enhanced its shear strength (kPa). Conversely, adding GAC reduction soil's mechanical properties. Per- poly-fluoroalkyl (PFASs) are classified some most hazardous due their persistent, bioaccumulative, toxic traits, posing risks both PFASs innovative aminated montmorillonite-chitosan this study effectively stabilizes simultaneously inhibiting groundwater media. This research progress makes significant contribution efforts, aim ecosystems mitigate negative effects these substances.

Language: Английский

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The Unique Distribution Pattern of PFAS in Landfill Organics

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 479, P. 135678 - 135678

Published: Aug. 29, 2024

Language: Английский

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