Chemosphere, Год журнала: 2025, Номер 376, С. 144287 - 144287
Опубликована: Март 11, 2025
Язык: Английский
Environmental Research, Год журнала: 2024, Номер 249, С. 118404 - 118404
Опубликована: Фев. 8, 2024
Язык: Английский
Процитировано
41
Toxics, Год журнала: 2025, Номер 13(2), С. 134 - 134
Опубликована: Фев. 12, 2025
Per- and polyfluoroalkyl substances (PFAS) are synthetic chemicals widely used in consumer industrial products due to their unique physicochemical properties. However, persistence bioaccumulative potential pose significant environmental human health risks. This review focuses on the use of non-invasive matrices-urine, hair, nails-for biomonitoring PFAS, highlighting key findings from scientific studies. While urine offers a practical option, its limited sensitivity for long-chain PFAS requires further analytical advances. Hair nails have demonstrated biomonitoring, with higher detection frequencies concentrations certain compared urine. The variability levels across studies reflects differences population characteristics, exposure sources, geographic regions. emphasizes need standardized methods, expanded studies, complementary matrices enhance accuracy reliability assessment.
Язык: Английский
Процитировано
3
Archives of Toxicology, Год журнала: 2025, Номер unknown
Опубликована: Фев. 22, 2025
Abstract Per- and polyfluoroalkyl substances (PFAS), previously known as perfluorinated compounds (PFC), are a group of synthetic chemicals widely used over the past decades. Their extensive application, combined with their environmental persistence, has contributed to ubiquitous presence in environment associated toxicological risks. Regarding humans, blood serum testing remains primary method for biomonitoring PFAS exposure, while breast milk also been due transfer these from mothers infants during lactation. This paper aims review scientific literature (using PubMed Scopus databases) on concentrations non-occupationally exposed women. Where available, estimated daily intake by breastfeeding is examined. The reviewed studies categorized continent country/region, revealing significant lack data many countries, including both developed developing nations. findings indicate substantial variability concentrations, influenced factors such geographic location, sampling year, specific analyzed. Among identified compounds, perfluorooctane sulfonate (PFOS) perfluorooctanoic acid (PFOA) most commonly detected, along perfluorohexanesulfonic (PFHxS) perfluorononanoic (PFNA), being only regulated maximum levels certain foodstuffs. Most were conducted before implementation current (updated) tolerable weekly (TWI) values substances. Consequently, majority reported low health risk infants, even high-intake scenarios. Nevertheless, urgently needed countries limited or no data, new investigations should assess whether intakes exceed updated TWI. Special focus be given rural industrial areas where exposure remain poorly understood.
Язык: Английский
Процитировано
3
Journal of environmental chemical engineering, Год журнала: 2025, Номер 13(2), С. 115470 - 115470
Опубликована: Янв. 15, 2025
Язык: Английский
Процитировано
2
Environmental Science & Technology, Год журнала: 2024, Номер unknown
Опубликована: Сен. 12, 2024
As regulatory standards for per- and polyfluoroalkyl substances (PFAS) become increasingly stringent, innovative water treatment technologies are urgently demanded effective PFAS removal. Reported sorbents often exhibit limited affinity frequently hindered by competitive background substances. Recently, fluorinated (abbreviated as fluorosorbents) have emerged a potent solution leveraging fluorine-fluorine (F···F) interactions to enhance selectivity efficiency in This review delves into the designs applications of fluorosorbents, emphasizing how F···F improve binding affinity. Specifically, existence results removal efficiencies orders magnitude higher than other counterpart sorbents, particularly under conditions. Furthermore, we provide detailed analysis fundamental principles underlying elucidate their synergistic effects with sorption forces, which contribute enhanced efficacy selectivity. Subsequently, examine various fluorosorbents synthesis fluorination techniques, underscore importance accurately characterizing through advanced analytical methods, emphasize significance this interaction developing selective sorbents. Finally, discuss challenges opportunities associated employing techniques guide design advocate further research development sustainable cost-effective interactions.
Язык: Английский
Процитировано
14
Water Research, Год журнала: 2024, Номер 260, С. 121878 - 121878
Опубликована: Июнь 3, 2024
Язык: Английский
Процитировано
12
SAR and QSAR in environmental research, Год журнала: 2024, Номер 35(4), С. 309 - 324
Опубликована: Апрель 2, 2024
In this study, we focus on the development of Quantitative Structure-Property Relationship (QSPR) models to predict critical micelle concentration (CMC) for per- and polyfluoroalkyl substances (PFASs). Experimental CMC values both fluorinated non-fluorinated compounds were meticulously compiled from existing literature sources. Our approach involved constructing two distinct types based Support Vector Machine (SVM) algorithms applied dataset. Type (I) trained exclusively compounds, while (II) developed utilizing entire dataset, incorporating compounds. Comparative analyses conducted against reference data, as well between model types. Encouragingly, exhibited robust predictive capabilities demonstrated high reliability. Subsequently, having broadest applicability domain was selected complement experimental thereby enhancing our understanding PFAS behaviour.
Язык: Английский
Процитировано
9
Analytica Chimica Acta, Год журнала: 2025, Номер 1345, С. 343746 - 343746
Опубликована: Янв. 31, 2025
Язык: Английский
Процитировано
1
Nature, Год журнала: 2025, Номер unknown
Опубликована: Март 26, 2025
Abstract Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are persistent, bioaccumulative anthropogenic pollutants that have attracted the attention of public private sectors because their adverse impact on human health 1 . Although various technologies been deployed to degrade PFASs with a focus non-polymeric functionalized compounds (perfluorooctanoic acid perfluorooctanesulfonic acid) 2–4 , general PFAS destruction method coupled fluorine recovery for upcycling is highly desirable. Here we disclose protocol converts multiple classes PFAS, including fluoroplastics polytetrafluoroethylene polyvinylidene fluoride, into high-value fluorochemicals. To achieve this, were reacted potassium phosphate salts under solvent-free mechanochemical conditions, mineralization process enabling as KF K 2 PO 3 F fluorination chemistry. The can be recovered reuse, implying no detrimental phosphorus cycle. Therefore, not only destructible but now contribute sustainable circular economy.
Язык: Английский
Процитировано
1
The Journal of Physical Chemistry B, Год журнала: 2025, Номер unknown
Опубликована: Апрель 17, 2025
Mechanical recycling of polytetrafluoroethylene (PTFE) has long been a crucial matter in fluorocarbon chemistry. Since the molecular aggregation PTFE is outstandingly strong, solvents are believed to be necessary for disaggregation PTFE, but they should not used as much possible because concerns about environmental impact. Recently, new technique using solid sodium chloride with aid planetary ball milling, instead solvents, proposed, and this simple works powerfully indeed purpose, confirmed by significant decrease crystallinity. Here, we show that process revealed detail infrared (IR) spectroscopy. The spectra clearly readily crushed into fine particles, within particles also recognized. These changes found at all does use chloride. In addition, generation helical defects perfluoroalkyl chains found, which correlated disaggregation. manner, IR spectroscopy useful tool providing us rich information on across three different hierarchical structures.
Язык: Английский
Процитировано
1