The unique distribution pattern of PFAS in landfill organics
3 Sep 2024 | J. Hazard. Mater.
PFAS chemicals from decomposing landfill waste predominantly accumulate at middle depths within a landfill, with a strong correlation between total PFAS, total carbon, and dissolved organic matter in landfill organics.
Silicone Wristbands as a Personal Passive Sampler to Evaluate Indoor Exposure to Volatile and Non-volatile PFASs.
3 Sep 2024 | Environ Sci Technol
Silicone wristbands were used to measure personal exposure to PFAS chemicals, with gender, age, and time spent at home influencing individual exposure levels. For some PFAS, indoor air and skin contact were found to be significant sources of exposure.
Exposure to Per- and Polyfluoroalkyl Substances and Timing of Puberty in Norwegian Boys: Data from the Bergen Growth Study 2
3 Sep 2024 | Environ Sci Technol
Higher levels of PFAS chemicals, including PFOS, PFOA, PFNA, and PFHxS, were associated with delayed puberty in Norwegian boys, as measured by testicular volume and testosterone levels, with some PFAS showing stronger links to later pubertal onset.
Exposure to per- and polyfluoroalkyl substances is associated with impaired cardiovascular health: a cross-sectional study
29 Aug 2024 | Front Public Health
Exposure to PFNA, PFOA, and PFOS was associated with an increased risk of impaired cardiovascular health in U.S. adults.
Identification of Emerging Per-and Polyfluoroalkyl Substances (PFAS) in E-waste Recycling Practices and New Precursors for Trifluoroacetic Acid
23 Aug 2024 | Environ. Sci. Technol.
Soil samples from e-waste recycling sites in Pakistan revealed significant PFAS contamination, dominated by trifluoroacetic acid (TFA) and 6:2 fluorotelomer sulfonic acid, with concentrations up to 367 ng/g, indicating substantial environmental impact from these hazardous recycling practices.
Asthma and Decreased Lung Function in Children Exposed to Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs): An Updated Meta-Analysis Unveiling Research Gaps
23 Aug 2024 | Environ. Res.
Exposure to PFOA is associated with a higher risk of asthma in children, while PFOS does not show a clear link to decreased lung function. Further research with larger and more consistent studies is needed to better understand these relationships and their underlying mechanisms.
Concentration and human health risk attribute to per-and polyfluoroalkyl substances in fillet of carp and tilapia fish: systematic review and meta-analysis
22 Aug 2024 | J. Food Compos. Anal.
The meta-analysis revealed that PFAS concentrations are highest in tilapia (193.45 µg/kg) and carp (47.17 µg/kg) from China, with the highest non-carcinogenic risk from PFAS consumption for adults also observed in China; risk levels in other countries are notably lower, though ongoing monitoring is needed.
Characterization of the Bioavailability of Per- and Polyfluoroalkyl Substances in Farmland Soils and the Factors Impacting Their Translocation to Edible Plant Tissues
22 Aug 2024 | Environ Sci Technol
PFAS were detected in all crops from the Fen-Wei Plain, with higher accumulation in leafy vegetables and stronger bioavailability in soils with more dissolved organic carbon; plant tissue lipid and protein contents significantly influenced PFAS accumulation.
The perfluorooctanoic acid accumulation and release from pipelines promoted growth of bacterial communities and opportunistic pathogens with different antibiotic resistance genes in drinking water
22 Aug 2024 | J Hazard Mater
PFOA promotes the growth of harmful bacteria and the spread of antibiotic resistance genes in drinking water by enhancing bacterial metabolism, increasing protective substances, and facilitating gene transfer, leading to serious health risks.
Exposure to per- and polyfluoroalkyl substances and age-related macular degeneration in U.S. middle-aged and older adults
22 Aug 2024 | Chemosphere
Higher levels of certain PFAS chemicals, particularly PFOS, are linked to a significantly increased risk of age-related eye disease in middle-aged and older adults.
All fluorine-free lithium-ion batteries with high-rate capability
19 Aug 2024 | J. Chem. Eng.
Non-fluorinated alternatives for lithium batteries have been developed, replacing traditional fluorinated components and offering improved performance and stability, showing promise for high-capacity, fluorine-free battery technologies in response to potential regulatory bans.
Contribution of Continued Dermal Exposure of PFAS-Containing Sunscreens to Internal Exposure: Extrapolation from and Tests to Physiologically Based Toxicokinetic Models
18 Aug 2024 | Environ Sci Technol
Sunscreens containing PFAS were found to significantly increase skin absorption of these chemicals, with models predicting higher exposure from applying the same amount of sunscreen over larger skin areas, posing a greater potential health risk.
First report of accumulation of perfluorooctane sulfonate (PFOS) in platypuses (Ornithorhynchus anatinus) in New South Wales, Australia
16 Aug 2024 | Environ Sci Pollut Res Int
Platypuses in Australia were found to have PFOS levels in their livers ranging from less than 1 µg/kg to 1200 µg/kg, comparable to those in river otters and lower than in American mink, raising concerns about potential health impacts.
A Systematic Workflow for Compliance Testing of Emerging International Classwide Restrictions on PFAS
14 Aug 2024 | Environmental Science and Technology
The authors propose a three-step workflow to ensure compliance with new PFAS restrictions based on recent advances in analytical chemistry.
Clinical Implications of New Drinking Water Regulation for "Forever Chemicals"
14 Aug 2024 | JAMA
The new EPA regulations establish near-zero limits for specific PFAS in drinking water, underscoring the significant health risks associated with these persistent "forever chemicals" and the increasing importance for clinicians to address patient concerns about PFAS exposure and its potential health impacts.