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.
Preferential Partitioning of Per-and Polyfluoroalkyl Substances in Freshwater Ice
13 Aug 2024 | Environ. Sci. Technol.
PFAS are typically excluded from ice as freshwater lakes freeze, but some PFAS and dissolved organic carbon are preferentially concentrated in the ice, affecting their distribution and potential release into the environment when the ice melts.
Sampling of per-and polyfluoroalkyl substances in drainage water from a waste management facility
12 Aug 2024 | Chemosphere
Drainage water at a Swedish waste management facility contained various PFAS, including short-chain perfluoroalkyl sulfonic acids (C4 and C5) and perfluoroalkyl carboxylic acids (C4 to C6).
Drinking water quality parameters in Africa and the United States: Implications for public health
12 Aug 2024 | Eng. Sci. Technol.
This study highlights significant disparities between water quality in Africa and the United States, with Africa facing high levels of microbiological and chemical contaminants due to inadequate infrastructure, while the U.S. contends with challenges like PFAS contamination and lead from aging pipes despite advanced treatment technologies, emphasizing the need for targeted interventions and policy improvements in both regions.
Dioxins vs. PFAS: Science and Policy Challenges
12 Aug 2024 | Environ Health Perspect
Dioxin-like chemicals, once a major environmental concern, have been largely controlled through regulations, but attention has now shifted to PFAS, a group of "forever chemicals" that pose a serious and urgent health threat, with ongoing debates about their regulation.
It’s too soon to stop studying the potential effects of PFAS on human health
9 Aug 2024 | Nature
Despite positive signs regarding the decreasing presence of specific PFAS in the blood of sampled humans, we do not know enough about this broad class of substances to justify stopping research on their toxicity.
Per- and polyfluoroalkyl substances exposure is associated with polycystic ovary syndrome risk among women attending a fertility clinic
6 Aug 2024 | Sci Total Environ
Exposure to certain PFAS, particularly PFOS and PFHxS, has been linked to an increased risk of polycystic ovary syndrome among women seeking fertility treatment, even at lower exposure levels, highlighting the reproductive health risks associated with PFAS.
Assessment of per- and poly-fluoroalkyl substances and physiological biomarkers in aquarium-based bottlenose dolphins and killer whales
6 Aug 2024 | Chemosphere
PFAS, especially PFOS and PFNA, were found in the serum of zoo-based bottlenose dolphins and killer whales, and the study revealed significant correlations between PFAS exposure and physiological effects, such as increased reactive oxygen species, suggesting potential health risks that could inform future conservation and regulatory decisions.
The long-chain polyfluorinated alkyl substance perfluorohexane sulfonate (PFHxS) promotes bone marrow adipogenesis
5 Aug 2024 | Toxicol Appl Pharmacol
PFAS, particularly PFHxS, can accumulate in bones and promote the formation of bone marrow fat, potentially increasing the risk of conditions like osteoporosis and tumor progression. This study highlights the need for further research on the health impacts of PFHxS exposure, especially in combination with a high-fat diet.
Gestational PFAS Exposure and Newborn Size: The Modifying Effect of Cord Blood Fatty Acids
3 Aug 2024 | ESE
Emerging evidence shows that PFAS exposure during pregnancy, particularly from short-chain PFAS, is linked to decreased newborn size, but higher levels of fatty acids in cord blood may mitigate these adverse effects.
Mapping Per-and Polyfluoroalkyl Substance Footprint from Cosmetics and Carpets across the Continental United States
2 Aug 2024 | ACS EST Water
Consumer products like cosmetics and carpets are significant contributors to PFAS contamination in the environment, especially in densely populated and coastal areas, highlighting the urgent need to stop the production and use of PFAS in these items.
Association between mixed exposure to per-and polyfluoroalkyl substances and metabolic syndrome in Korean adults: Data from the Korean National environmental health survey cycle 4
1 Aug 2024 | Int. J. Hyg. Environ. Health
Exposure to multiple PFAS increases the risk of metabolic syndrome—a cluster of conditions including obesity, high blood pressure, high triglycerides, low HDL cholesterol, and high blood sugar—particularly in females, with significant contributions from PFNA.