Levels and oxidative toxicity of microplastics and perfluoroalkyl substances (PFASs) in different tissues of sea cucumber (Holothuria tubulosa)
13 Jan 2025 | Sci Total Environ
Sea cucumbers, as key marine organisms, serve as indicators of environmental pollution, and their exposure to microplastics and PFAS highlights the potential risks these pollutants pose to marine ecosystems and human health through the food chain.
Research on the PFAS release and migration behavior of multi-layer outdoor jacket fabrics
13 Jan 2025 | J Hazard Mater
The release and migration of PFAS from outdoor jacket fabrics, especially those treated with short-chain fluorinated polymers (C6F13-SFPs), increase during aging, abrasion, and washing cycles, posing significant environmental risks through the migration of PFAS into the environment and the release of microfibers that carry these pollutants.
Prenatal exposure to per- and polyfluoroalkyl substances (PFAS) from contaminated water and risk of childhood cancer in California, 2000-2015
9 Jan 2025 | Environ Epidemiol
Prenatal exposure to PFAS in drinking water may increase the risk of certain childhood cancers, with specific associations found for Wilms tumor, gliomas, and other cancer types, particularly among children with Mexico-born mothers.
Exposure to specific polyfluoroalkyl chemicals is associated with cardiovascular disease in US adults: a population-based study
9 Jan 2025 | Front Cardiovasc Med
Exposure to PFDE, MPAH, and PFUA, was linked to an increased risk of cardiovascular disease in U.S. adults, with gender and race playing a role in how these chemicals affect health.
Common infections in children aged 6 months to 7 years after high prenatal exposure to perfluoroalkyl substances from contaminated drinking water in Ronneby, Sweden
7 Jan 2025 | Environ Res
High prenatal exposure to PFAS from contaminated drinking water in Sweden was linked to an increased risk of childhood ear infections and potentially eye and urinary tract infections.
Sex specificity in associations between exposure to a mixture of per and poly-fluoroalkyl substances and anxiety among US adults
7 Jan 2025 | J Expo Sci Environ Epidemiol
Exposure to mixtures of PFAS was linked to anxiety in U.S. adults, with males showing decreased anxiety and females showing increased anxiety, highlighting sex-specific effects.
Surface soil per- and polyfluoroalkyl substance mixtures dominated by perfluorooctane sulfonate: prioritization for ecotoxicity testing and ecological risk assessment at current and former U.S. Air Force bases
7 Jan 2025 | Environ Toxicol Chem
PFAS mixtures in soil were dominated by PFOS (approximately 82%) but also included 5% to 12% of PFHxS, PFOA, PFOSA, and PFHxA. Additionally the study identified high concentrations but inconsistent prevalence of the 6:2 and 8:2 fluorotelomer sulfonates. These results highlight the need for toxicity testing of mixtures dominated by PFOS but including combinations of other PFAS.
Evaluating Dermal Absorption of Perfluorooctanoic Acid (PFOA) and Implications for Other Per-and Polyfluoroalkyl Substances (PFAS)
6 Jan 2025 | Regul Toxicol Pharmacol
PFOA was found to have low dermal absorption compared to other harmful chemicals, with these authors selecting a 1.6% absorption rate as the published value most likely to be accurate, suggesting that ingestion remains a higher exposure pathway compared to skin contact.
Unveiling the Truth of Interactions between Microplastics and Per-and Polyfluoroalkyl Substances (PFASs) in Wastewater Treatment Plants: Microplastics as a Carrier of PFASs and Beyond
6 Jan 2025 | Environ. Sci. Technol.
Microplastics in wastewater treatment plants were found to carry PFAS at concentrations ranging from 122 to 166 ng/g, with dominant compounds like PFOS and PFOA showing strong sorption and desorption behaviors, highlighting the dual roles of microplastics as both carriers and sources of PFAS.
High organofluorine concentrations in municipal wastewater affect downstream drinking water supplies for millions of Americans
6 Jan 2025 | Proc Natl Acad Sci U S A
Municipal wastewater treatment plants were found to discharge high concentrations of organofluorine compounds, including fluorinated pharmaceuticals and PFAS, with limited removal efficiency (<25%), significantly contaminating downstream drinking water supplies for up to 23 million Americans.
Per- and polyfluoroalkylated substances (PFAS) in the feathers and excreta of Gentoo penguins (Pygoscelis papua) from the Antarctic Peninsula
30 Dec 2024 | Sci Total Environ
Gentoo penguins exhibit bioaccumulation of PFAS compounds in feathers and excreta (including the first report of NaDONA in Antarctica), with adults showing higher levels than chicks; this study highlights the global reach of anthropogenic pollutants and the need for further investigation into their ecological impact.
Cleaner cuts: Farmed fish and skin-off fillets are lower in per- and polyfluoroalkyl substances (PFAS)
28 Dec 2024 | Sci Total Environ
Farmed fish and skin-off fillets generally contain lower levels of harmful PFAS chemicals compared to wild fish and skin-on fillets, making them potentially safer dietary choices for reducing exposure to these persistent environmental pollutants.
Target and non-target screening of poly-and perfluoroalkyl substances (PFAS) in fish liver samples from the River Nile in Sudan: A baseline assessment
24 Dec 2024 | Mar. Pollut. Bull.
PFAS contamination in fish livers from the Nile River, particularly downstream of a Sudanese Dam, is significant, with some levels exceeding international safety standards, emphasizing the need for continued monitoring and research into environmental and food safety risks in the region.
Characterization of PFAS Residuals: A Case Study on PFAS Content in a Firefighting Foam Delivery System of an Aircraft Rescue and Firefighting Vehicle
24 Dec 2024 | Chemosphere
Residual PFAS contamination in firefighting foam systems, even after rinsing, highlights the need for targeted replacement of critical components as brass and rubber parts retain the highest contamination levels.
Predicted Potential for Aquatic Exposure Effects of Per-and Polyfluorinated Alkyl Substances (PFAS) in Pennsylvania’s Statewide Network of Streams
19 Dec 2024 | Toxics
A machine learning model was used to effectively predict the ecological health risks of PFAS in Pennsylvania stream water, finding that industrial/urban land cover, rainfall intensity, geology, and agricultural factors had the greatest impacts.