Showing 31-45 of 1089
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Target and non-target screening of poly-and perfluoroalkyl substances (PFAS) in fish liver samples from the River Nile in Sudan: A baseline assessment
Science
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.
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Arctic snow shows up to 71 times more PFAS during sunny months
News
19 Dec 2024 | Phys.org
FAS refers collectively to the thousands of man-made chemicals that take a very long time to break down in nature. None of these substances occur naturally—also called forever chemicals, and several are suspected of negatively affecting humans and nature.
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Impacts of Gestational F-53B Exposure on Fetal Neurodevelopment: Insights from Placental and Thyroid Hormone Disruption
Science
11 Dec 2024 | Environ Health (Wash)
Exposure to the PFOS replacement chemical F-53B during pregnancy led to its accumulation in the placenta and fetal brain, disrupting thyroid hormone transport and gene regulation, ultimately causing fetal growth issues and impaired brain development in mice.
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Per- and polyfluoroalkyl substances, apolipoproteins and the risk of coronary heart disease in US men and women
Science
3 Dec 2024 | Environ Health
Elevated concentrations of PFOS in the blood were strongly associated with an increased risk of coronary heart disease, with the risk more than tripling for each unit increase in PFOS levels.
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Comprehensive characterization of European house dust contaminants: Concentrations and profiles, geographical variability, and implications for chemical regulation and health risk
Science
2 Dec 2024 | Sci Total Environ
Analysis of European house dust revealed over 1,200 contaminants, including persistent pollutants like DEHP, PFOA, PFOS, PFBA, and PFBS, with geographic trends showing higher levels of certain chemicals in Southern Europe, underscoring the need for stricter regulation and improved risk assessment​.
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Impact of local food consumption on exposure to perfluorooctanoic acid and perfluorooctane sulfonate in a contaminated community in North-Eastern Italy
Science
30 Nov 2024 | Epidemiol Prev
Consuming locally-grown foods in PFAS-contaminated areas can significantly increase exposure to PFOA and PFOS, leading to prolonged elevated blood levels, with affected individuals taking about three more years to reduce their concentrations to levels below a clinically significant threshold level.
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Exploring Perfluoroalkyl Substances Contamination in Human Breast Milk: First Ghanaian Study
Science
29 Nov 2024 | Chemosphere
Human breast milk in Ghana contains detectable levels of PFAS, including PFHxA, PFHpA, PFOA, and PFOS, highlighting potential exposure risks to infants through breastfeeding, especially for PFOS and PFOA.
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Spatial Variations in Per-and Polyfluoroalkyl Substance Concentrations in Pooled Sera from Inland, Coastal, and Island Populations
Science
28 Nov 2024 | Environmental Research
PFAS levels were found to be higher in coastal and island populations compared to inland areas, likely due to seafood consumption and other location-specific exposure routes.
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Sources and Seasonal Variations of Per- and Polyfluoroalkyl Substances (PFAS) in Surface Snow in the Arctic
Science
26 Nov 2024 | Environ Sci Technol
PFAS in remote Arctic snow formed during long-range atmospheric processes were found to positively correlate with the amount of sunlight, suggesting seasonal influences on their formation and deposition. This study also provided the first evidence for the possible atmospheric formation of PFOS and GenX.
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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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Study of Endocrine-Disrupting Chemicals in Infant Formulas and Baby Bottles: Data from the European LIFE-MILCH PROJECT
Science
18 Nov 2024 | Molecules
Infant formulas and baby bottles were found to contain endocrine-disrupting chemicals, including PFAS such as PFOA, PFBS, PFDA, PFHxA, and PFHpA, along with phthalates, bisphenols, metals, and more, highlighting the need for stricter monitoring and public health interventions to protect infants.
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Association between Exposure to Per- and Polyfluoroalkyl Substances and Missed Miscarriage: A Hospital-Based Case-Control Study in Shanghai, China
Science
16 Nov 2024 | Environ Toxicol Pharmacol
Plasma concentrations of 13 PFAS, including PFOA, L-PFOS, and 6:2 Cl-PFESA were significantly associated with increased risk of miscarriage in women, with PFOA showing the strongest association, highlighting the reproductive risks linked to PFAS exposure.
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Examining Disparities in PFAS Plasma Concentrations: Impact of Drinking Water Contamination, Food Access, Proximity to Industrial Facilities and Superfund Sites
Science
14 Nov 2024 | Environ Res.
PFAS plasma levels were higher in individuals living near Superfund sites or PFAS-polluting facilities and in areas with low food access, with drinking water contamination contributing significantly to elevated plasma PFOS, PFOA, and PFHxS levels, highlighting disparities in PFAS exposure driven by industrial and socioeconomic factors.
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Exposure to and Transplacental Transfer of Per- and Polyfluoroalkyl Substances in a Twin Pregnancy Cohort in Korea
Science
6 Nov 2024 | Environ Sci Technol
In twin pregnancies, higher levels of certain PFAS chemicals, like L-PFOS and PFOA, were found in the mothers' blood compared to their babies' cord blood. Differences in blood flow through the placenta were linked to varying PFAS levels between the twins, suggesting that the way these chemicals transfer from mother to baby can be affected by placental structure, potentially impacting health.
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Relationship between per-fluoroalkyl and polyfluoroalkyl substance exposure and insulin resistance in nondiabetic adults: Evidence from NHANES 2003-2018
Science
5 Nov 2024 | Ecotoxicol Environ Saf
Higher exposure to PFAS chemicals, such as PFOS, PFOA, and MeFOSAA, is strongly associated with increased insulin resistance in adults, especially when measured by the TyG index, with the association stronger in younger individuals and those with higher BMI, emphasizing the health risks of PFAS exposure.