Showing 16-30 of 1147
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Development and validation of an LC-MS/MS method for simultaneous determination of 39 PFAS in soil samples: applications to playgrounds in Attica, Greece
Science
4 Dec 2025 | Anal Bioanal Chem
An optimized research method was found to be a useful tool for environmental and public-health decision making by reliably detecting 39 PFAS in playground soils, and the results suggest that some PFAS levels may potentially exceed a precautionary child-health screening value of about 100 ng per kg of body weight per day.
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Assessing PFAS exposure in Rocky Mountain elk (Cervus canadensis nelsoni) populations adjacent to the former Rocky Flats nuclear site: A preliminary analysis.
Science
1 Dec 2025 | PLoS One
Preliminary analysis finds that PFOS was consistently detected in elk livers at both Rocky Flats and control sites while PFOA was not detected, suggesting that PFOS may accumulate in elk regardless of proximity to known contamination sources and highlighting potential wildlife exposure pathways and implications for game consumption.
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Arsenic, Cadmium, Lead, Mercury, and PFAS Exposure During Pregnancy or Lactation and Respective Concentrations in Human Milk: Systematic Review
Science
26 Nov 2025 | Environ Res
Evidence from 46 studies suggests that higher maternal exposure to lead, mercury, PFOA, and PFOS may be linked with higher concentrations of the same contaminants in human milk, potentially exposing infants during critical development windows.
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Bone marrow accumulation of perfluoroalkyl substances (PFASs) predicts post-transplant relapse in acute myeloid leukemia patients and associated with T-cell dysregulation
Science
25 Nov 2025 | Ecotoxicol Environ Saf
Higher early post-transplant levels of PFOA, PFOS, 9Cl-PF3ONS, and PFUnDA in the bone marrow of leukemia patients were linked to patterns of T-cell disruption associated with relapse, pointing to a potential environmental influence on immune recovery after a transplant.
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The unintentional role of chemical regulation in regrettable substitution: The case of PFAS
Science
25 Nov 2025 | ES&P
The authors argue that regulatory systems like TSCA and REACH may unintentionally drive regrettable PFAS substitutions by allowing insufficiently assessed alternatives onto the market, highlighting the policy significance of shifting toward earlier hazard evaluation, coordinated global oversight, and mechanisms to prevent substitution with equally persistent or hazardous chemicals.
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‘Toxic Soup’: PFAS and other contaminants surged in French Broad River after Helene
News
24 Nov 2025 | NC Health News
Among the chemicals detected were 11 types of PFAS, including PFOA and PFOS, which the study found at levels exceeding the Environmental Protection Agency’s maximum contaminant levels of 4 parts per trillion.
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Asymmetrical contamination of anionic PFAS across global freshwater reservoirs
Science
18 Nov 2025 | Water Research
Freshwater reservoirs across Asia, North America, Europe, Africa, and Oceania show three distinct PFAS contamination stages, including PFOA-dominated, PFOA plus PFOS co-dominated, and short-chain PFBA-dominated profiles, which together point to the need for more coordinated global multi-media PFAS monitoring and governance.
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Perfluoroalkyl and polyfluoroalkyl substances contamination in dairy: A global perspective.
Science
17 Nov 2025 | Sci Total Environ
PFOS, PFOA, and other PFAS may contaminate milk and dairy products through polluted water, PFAS-treated feed, food-contact packaging, and fluoropolymer-coated equipment, raising concern for infant and population-wide exposure and underscoring the need for stronger global monitoring and regulatory alignment given highly variable and sometimes inconsistent contamination data.
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PFAS dynamics in the American black bear (Ursus americanus): Physiological stages (hyperphagia, hibernation, and post-hibernation), and temporal trends from 1989 to 2015
Science
8 Nov 2025 | Sci Total Environ
PFAS built up in black bears during hibernation and declined after, with levels peaking around 2002 then dropping after PFOS phase-outs, while long-chain PFCAs kept rising, showing that newer PFAS continue to persist in the environment.
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F-53B exposure induced testicular premature aging through ZBP1-mediated programmed necrosis
Science
4 Nov 2025 | J Hazard Mater
F-53B, a PFAS replacement for PFOS used in chrome plating, was found to cause severe reproductive toxicity, resulting in premature testicular aging in mice.
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Concentrations of per- and polyfluoroalkyl substances in Canadian sea otters (Enhydra lutris) are higher near urban centers
Science
4 Nov 2025 | Environ Toxicol Chem
PFAS were detected in all sampled British Columbia sea otters, with liver concentrations over 25 times higher than in muscle tissue and dominated by PFNA, PFOSA, and PFOS.
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Childhood exposure to per-and polyfluoroalkyl substances during eating activities: Occurrence, exposure, and developmental risk
Science
3 Nov 2025 | J. Environ. Chem. Ecotoxicol.
Children’s feeding bibs and tablecloths were found to contain multiple PFAS, including PFOA, PFNA, and PFOS. Modeled hand-to-mouth exposure during meals was estimated to approach or exceed safety thresholds for infants that potentially disrupt hormone and developmental pathways.
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Perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) in seafood from Thailand: Levels, geographic distribution, and risk from dietary exposure
Science
27 Oct 2025 | Environ Monit Assess
Short-chain PFAS like PFBS and PFPeA were the most common contaminants found in Thai rivers and irrigation canals, showing that industrial discharge, agriculture, and urban runoff are spreading these persistent chemicals even into areas once considered clean.
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Association between maternal exposure to per-and polyfluoroalkyl substances and childhood growth trajectories up to 4 years of age: The Japan environment and children’s study
Science
24 Oct 2025 | Environ Sci Technol
Maternal exposure to PFAS during pregnancy was linked to slower early childhood growth in Japan, with higher PFOS, PFOA, and PFHxS levels associated with lower weight gain and shorter height through age four, suggesting that prenatal PFAS exposure may hinder fetal and postnatal development.
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Challenging assumptions: Per-and polyfluoroalkyl substances detected in deep groundwater across southeastern Australia
Science
22 Oct 2025 | ACS ES&T Water
PFAS compounds were detected in deep groundwater across southeastern Australia, including aquifers over 100 meters deep, revealing that even supposedly protected water sources are vulnerable to contamination through surface infiltration, bore leakage, and long-range subsurface transport.