Showing 121-135 of 2183
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Surface soil PFAS mixtures dominated by PFOS: Prioritization for ecotoxicity testing and ecological risk assessment at current and former US Air Force Bases
Science
7 Feb 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.
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Maine bill could set PFAS limits for food grown by local farmers
Policy
6 Feb 2025
If approved, Maine could lead the nation in setting new PFAS thresholds for some of the foods we consume.
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Notes from the field: Serum concentrations of perfluoroalkyl and polyfluoroalkyl substances among first responders to the Maui wildfires — Hawaii
Policy
6 Feb 2025
Median summed concentrations of selected PFAS among Maui County, Hawaii employees approximately 1 month after the 2023 Maui wildfires were higher among firefighters than among other responder groups. Sources other than the wildfires could have contributed to the levels.
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[Report] Notes from the Field: Serum Concentrations of Perfluoroalkyl and Polyfluoroalkyl Substances Among First Responders to the Maui Wildfires - Hawaii, September 2023
Science
6 Feb 2025 | MMWR Morb Mortal Wkly Rep
First responders to the 2023 Maui wildfires had elevated serum levels of PFAS, particularly firefighters, likely due to exposure from fire effluents, contaminated gear, and firefighting foams, raising concerns about long-term health risks such as cancer and metabolic disorders.
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Investigation of common and unreported parabens alongside other plastic-related contaminants in human milk using non-targeted strategies
Science
6 Feb 2025 | Chemosphere
A study of human milk in Canada and South Africa detected multiple paraben-related contaminants, including restricted and uncommon ones, as well as a tire-related chemical, PFAS, and phthalate metabolites. The results emphasize the need to utilize non-target analysis as well as further research the usage, biotransformation, and potential toxicity of a number of contaminants.
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Per- and polyfluoroalkyl substances and global water resources: an in-depth review of existing regulatory frameworks worldwide
Science
5 Feb 2025 | Int. J. Environ. Sci. Technol.
Global efforts to regulate PFAS are hindered by inconsistent policies, political and economic barriers, and scientific uncertainties, despite increasing evidence of their persistence, bioaccumulation, and toxicity in water resources; the study emphasizes the need for stronger international collaboration and enforcement to effectively manage PFAS pollution.
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Evers announces $145 million budget proposal to address PFAS pollution
Policy
4 Feb 2025
Wisconsin Governor Tony Evers on Tuesday announced a $145 million budget proposal to address PFAS pollution across the state, an amount that more than doubles the money set aside in the last state budget to address the problem.
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Per- and Poly-fluoroalkyl Substances (PFAS) in Sediment: a Source of PFAS to the Food Web?
Science
4 Feb 2025 | Integr Environ Assess Manag
While treatment of wastewater treatment plant effluent initially decreased PFAS levels in Kent Lake fish in Michigan, high contamination levels were found to continue due to PFAS accumulation in sediment acting as a persistent contamination source.
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First-of-its-kind PFAS study finds 'potentially harmful' levels of forever chemicals in Marylanders
News
3 Feb 2025 | WBALTV
A first-of-its-kind study testing the blood of Maryland residents for toxic forever chemicals found every participant had it in their blood — with nearly all of them at risk for health problems due to their levels of PFAS contamination.
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Per- and Poly-Fluoroalkyl Substances, and Organophosphate Flame Retardants in the Upper Yangtze River: Occurrence, Spatiotemporal Distribution, and Risk Assessment
Science
1 Feb 2025 | Toxics
PFAS and OPFRs were detected in the upper Yangtze River, with higher concentrations in the main stream than in tributaries, particularly near industrial and urban areas, and while ecological risks were generally low, some locations, especially near wastewater discharge sites, showed potential carcinogenic risks for adults due to OPFR exposure.
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PFAS exposure during pregnancy: Implications for placental health and functioning
Science
30 Jan 2025 | Environ. Int.
Exposure to PFAS during pregnancy has been linked to impaired placental health, including reduced placental weight, altered fetal-maternal exchange, and disrupted vascularization, which may contribute to pregnancy complications such as fetal growth restriction and preeclampsia.
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Record levels of ‘forever chemicals’ found in wildlife near New Mexico base, hunters warned
News
29 Jan 2025 | AP
Environmental regulators and health officials in New Mexico are warning hunters that harmful chemicals known to cause cancer in people have been found at record levels in birds, small mammals and plants at a lake near Holloman Air Force Base.
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Anti-icing properties of polar bear fur
Science
29 Jan 2025 | Sci Adv
Polar bear fur naturally prevents ice buildup due to its sebum composition, reducing ice adhesion similarly to fluorocarbon coatings, and providing insights for developing environmentally friendly anti-icing materials.
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Per- and Polyfluoroalkyl Substances and Twin Growth Discordance: New Insights from a Twin Birth Cohort Study
Science
29 Jan 2025 | Environ Sci Technol
Prenatal exposure to PFAS is associated with greater differences in birth weight and height between twin siblings, with non-identical twins being more affected than identical twins.
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PFAS regulation rollback under Trump administration sparks legal and environmental concern
News
28 Jan 2025 | FSJA
The Trump administration has halted plans to regulate PFAS discharges in wastewater, reversing guidelines developed under the Biden administration.