Showing 1-15 of 295
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Heavier sediment pollution by per-and polyfluoroalkyl substances (PFASs) in tropical coasts compared to temperate regions: An overlooked hotspot
Science
14 Jun 2025 | J. Environ. Sci.
Sediments along a tropical Chinese coastline contain markedly higher levels of both legacy and emerging PFAS, reaching about 13 ng/g dry weight and dominated by mid-chain compounds such as PFHxA and 9H-PFNA, a concentration exceeding those typically reported for temperate regions; researchers trace the pollution to land-based runoff, rocket-launch fallout, and other local sources.
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Burden of per- and polyfluoroalkyl substances (PFAS) in human breast milk: Implications for maternal and infant health
Science
7 Jun 2025 | Environ Int
Analyzing pooled breast-milk samples from five UN regions, researchers estimate that up to 24 % of mothers and 17 % of babies already exceed plasma levels of PFHxS and PFNA linked to endocrine, immune and developmental harm.
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Distribution pattern, source apportionment and health risk assessment of per and polyfluoroalkyl substances in drinking water treatment plants in South Africa
Science
26 May 2025 | Environ Toxicol Chem
Testing of drinking‑water plants in five South African provinces revealed measurable PFAS, sometimes climbing to hundreds of nanograms per litre, with one Northern Cape facility exceeding safety thresholds.
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Individual and mixtures of PFAS during pregnancy are associated with maternal cardiometabolic outcomes during pregnancy
Science
30 Apr 2025 | Environ Health
The majority of pregnant woman tested in central Arkansas had PFAS in her blood, and those with the highest levels showed shifts in cholesterol, triglycerides, resting pulse, and diastolic blood pressure— indicating potential harm to heart health during pregnancy.
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Oregon moves to regulate harmful ‘forever chemicals’
Policy
2 Apr 2025
Oregon’s list of regulated hazardous substances is getting its first update in nearly two decades with the addition of six “forever chemicals” known to harm human health.
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PFAS concentrations in the blood of Danish surfers
Science
20 Jan 2025 | Int J Hyg Environ Health
PFAS concentrations in the blood of Danish surfers were measured, revealing no significant relationship between the amount of time spent surfing and higher PFAS levels, but male sex and eating meat from free-ranging animals were found to be potential risk factors for increased exposure.
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[Press Release] Attorney General Bonta Co-leads Amicus Brief Defending Nationwide PFAS “Forever Chemicals” Drinking Water Standards
Policy
17 Jan 2025
California Attorney General Rob Bonta today co-led a coalition of 17 states in filing an amicus brief in the U.S. Court of Appeals for the D.C. Circuit defending a U.S. EPA rule establishing the first nationwide drinking water standards for certain toxic PFAS, also known as “forever chemicals,” under the Safe Drinking Water Act.
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Sex specificity in associations between exposure to a mixture of per and poly-fluoroalkyl substances and anxiety among US adults
Science
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.
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Per-and polyfluoroalkyl substances in paired serum and breastmilk samples among pregnant farmworkers in Thailand
Science
16 Dec 2024 | Int. J. Hyg. Environ. Health.
PFOS and PFNA were the most commonly detected PFAS in breastmilk from Thai farmworkers, with lactational transfer efficiencies up to 14.7%, highlighting a significant route of postnatal exposure for infants.
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Individual and joint associations of exposure to per- and polyfluoroalkyl substances with children's mitochondrial DNA copy number, and modified by estimated glomerular filtration rate
Science
10 Dec 2024 | Environ Res
Legacy and emerging PFAS, especially PFOA, were associated with lower levels of mitochondrial DNA in children, with more pronounced associations seen in those with weaker kidney function and older age, highlighting the potential health risks of PFAS exposure in early life.
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Associations between per-and polyfluoroalkyl substances and menstrual cycle regularity in reproductive-aged female: a cross-sectional study
Science
25 Nov 2024 | Emerging Contaminants
Exposure to branched PFOS and PFNA was significantly associated with irregular and long menstrual cycles, with these effects being more pronounced among women with low physical activity, suggesting potential reproductive risks linked to PFAS exposure and the influence of lifestyle factors.
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The Exposure Status of Environmental Chemicals in South Korea: The Korean National Environmental Health Survey 2018-2020
Science
19 Nov 2024 | Toxics
Among Korean adolescents, PFAS such as PFOA, PFOS, PFNA, and PFDeA were correlated with higher cholesterol levels, including LDL-C and total cholesterol. Adolescents highly exposed to both PFAS and heavy metals like mercury also had significantly higher lipid profiles.
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Serum per- and polyfluoroalkyl substance (PFAS) levels and health-related biomarkers in a pilot study of skiers in New England
Science
8 Oct 2024 | Environ Res
Ski coaches were found to have elevated levels of PFAS through ski wax exposure as well as higher cholesterol levels, suggesting a need for interventions to reduce PFAS in ski waxes and limit environmental release.
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Assessment of per- and poly-fluoroalkyl substances and physiological biomarkers in aquarium-based bottlenose dolphins and killer whales
Science
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.
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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
Science
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.