Multiple toxicological implications (right panel) reflect the diversity of PFAS physicochemical properties and have been linked to both functional group and fluoroalkyl carbon chain length. Data were originally compiled by Burkhard .

2024年9月1日 · To better characterize the diverse and complex PFAS contamination, a novel pollution assessment method, PFAS “diversity”, was adopted based on a modified Shannon–Weiner diversity index and Pielou evenness index, reflecting numbers of PFAS detected and how evenly each PFAS contributed to the …

2024年12月1日 · The structural diversity influences the physicochemical properties and environmental profile of PFAS (Le et al., 2021). Table S1 summarizes the molecular characteristics of select PFAS commonly detected in human matrices (Ao et al., 2023, Gao et al., 2022, Kirk et al., 2018, Nakayama et al., 2020, Perovani et al., 2023).

2023年3月23日 · In a recent review, authors from the US EPA provide an overview on the diversity of PFAS in the environment, their distribution, their environmental fate, and options for remediation of resulting damage .

2 天之前 · The diversity and complexity of PFAS substances suggests the need of a multifaceted classification system that can guide regulatory efforts, risk assessment, and environmental monitoring through standardized criteria accepted on an international scale. A pivotal role in establishing a universal definition of PFAS will be played by the ...

2025年3月6日 · The number of PFAS molecules is huge (>14000 ) and most of them are perfluorocarboxylic acids and perfluorosulfonic acids, ... These materials were carefully analyzed and structured into 32 material categories to better understand their diversity and range of applications (optical photolithography for the production of microchips, automotive ...

2024年10月6日 · Per- and polyfluoroalkyl substances (PFAS) pose an emerging environmental risk impacting food products and ecosystems. This study analyzes over 150,000 entries from food safety authorities and...

2024年6月29日 · To better characterize the diverse and complex PFAS contamination, a novel pollution assessment method, PFAS "diversity", was adopted based on a modified Shannon-Weiner diversity index and Pielou evenness index, reflecting numbers of PFAS detected and how evenly each PFAS contributed to the total PFAS concentrations at specific sampling sites.

The results showed that the composition, concentration, and diversity of PFAS in water and sediment samples significantly differed between high-vulnerability lakes (HVL) and low-vulnerability lakes (LVL) clustered by EVI. The linear regression of PFAS concentration and diversity on EVI was most pronounced at the 1-km buffer zone scale compared ...

2024年9月24日 · Statistical analyses revealed that both functional groups and carbon chain length significantly influenced (p < 0.05) the variations in toxicity observed among different PFAS. This study underscores the importance of obtaining high-quality PFAS ecotoxicity data to comprehend associated hazards.