Showing 31-45 of 1056
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The Total Mass of Per- and Polyfluoroalkyl Substances (PFASs) in California Cosmetics
Science
27 Jun 2024 | Environ Sci Technol
Cosmetics sold in California were found to contain between 650 to 56,000 kg of PFAS annually, with the majority coming from shaving creams, hair care products, facial cleansers, sun care products, and lotions, contributing 4% to the PFAA load in wastewater treatment plants.
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In silico prediction of the interaction of legacy and novel per- and poly-fluoroalkyl substances (PFAS) with selected human transporters and of their possible accumulation in the human body
Science
17 Jun 2024 | Arch Toxicol
PFAS were examined through computer simulations, revealing that legacy PFAS like PFOA and PFOS have a higher propensity to interact with human proteins involved in chemical transportation and accumulation, suggesting a greater potential for bioaccumulation compared to newer PFAS formulations.
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Developmental perfluorooctane sulfonic acid exposure exacerbates house dust mite induced allergic responses in adult mice
Science
4 Jun 2024 | Sci Total Environ
PFOS not only disrupts lung development and increases asthma risk in mice, but also exacerbates allergic inflammation caused by house dust mites, particularly in females, underscoring potential sex-dependent health risks from PFOS exposure.
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The bioaccumulation and ecotoxicity of co-exposure of per(poly)fluoroalkyl substances and polystyrene microplastics to Eichhornia crassipes
Science
3 Jun 2024 | Water Res
Gen X and F-53B, used as alternatives to PFOA and PFOS, respectively, show significant bioaccumulation and eco-environmental risks, especially when co-exposed with polystyrene microplastics, which increase their bioavailability and toxicity to the aquatic plant Eichhornia crassipes.
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PEER Files Request for Correction Regarding Verification Analysis for PFAS in Pesticide Products
News
31 May 2024 | The National Law Review
According to PEER, “[i]n an effort to protect its reputation,” EPA issued false statements that the pesticides it tested contained no detectable PFAS.
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Immune cell profiles associated with human exposure to perfluorinated compounds (PFAS) suggest changes in Natural Killer, T helper and T cytotoxic cell subpopulations
Science
23 May 2024 | Environ Res
Exposure to various PFAS chemicals, even at low levels, is associated with changes in immune cell subpopulations, potentially explaining the immunosuppressive effects observed in epidemiological studies.
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Investigation of the Link between Per- and Polyfluoroalkyl Substances and Stress Biomarkers in Bottlenose Dolphins
Science
14 May 2024 | Environ Sci Technol
Exposure to various PFAS chemicals in bottlenose dolphins from South Carolina and Florida correlates with changes in stress-related cortisol levels, suggesting PFAS may impact their stress response and highlighting the need for further long-term research.
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Association of diet with per- and polyfluoroalkyl substances in plasma and human milk in the New Hampshire Birth Cohort Study
Science
11 May 2024 | Sci Total Environ
Certain dietary factors during pregnancy, such as increased consumption of fish/seafood, eggs, coffee, or white rice, were found to be associated with higher concentrations of PFAS in both maternal plasma and human milk, indicating the importance of understanding food-related sources of PFAS exposure for pregnant individuals and their offspring. Fruit, whole grain, and fiber consumption was associated with lower levels of PFAS in maternal plasma.
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Can Bees Detect Perfluorooctane Sulfonate (PFOS)?
Science
9 May 2024 | Environ Toxicol Chem
Bee behavior testing revealed that bees avoid syrup spiked with high levels of PFOS when given a choice between contaminated and uncontaminated food. This may have implications for bee health, pollination, and human health as PFOS has been detected in honey.
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Assessment and Comparison of Early Developmental Toxicity of Six Per- and Polyfluoroalkyl Substances with Human Embryonic Stem Cell Models
Science
30 Apr 2024 | Environ Sci Technol
Six PFAS compounds were found to disrupt cell fate determination, cilia formation, and gene expression in human embryonic stem cell models, signaling potential adverse health effects on early embryonic development.
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A Review of Sample Collection and Analytical Methods for Detecting Per- and Polyfluoroalkyl Substances in Indoor and Outdoor Air
Science
26 Apr 2024 | Chemosphere
This review of two decades of research on PFAS in outdoor and indoor air highlights the persistent presence of various PFAS, including those such as fluorotelomer alcohols and perfluorinated carboxylic acids and thousands more estimated, indicating ongoing environmental contamination despite regulatory measures, underscoring the need for improved air sampling techniques to comprehensively assess PFAS atmospheric distribution.
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Associations between serum perfluoroalkyl and polyfluoroalkyl concentrations and diabetes mellitus in the Korean general population: Insights from the Korean National Environmental Health Survey 2018-2020
Science
26 Apr 2024 | Int J Hyg Environ Health
PFAS exposure and prediabetes risk in the general Korean population was found to have a significant positive association between specific PFAS compounds, such as PFHxS and PFOS, and the risk of pre-diagnostic diabetes and prediabetes.
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E.P.A. Will Make Polluters Pay to Clean Up Two ‘Forever Chemicals’
News
19 Apr 2024 | The New York Times
The step follows an extraordinary move that requires utilities to reduce the levels of carcinogenic PFAS compounds in drinking water to near-zero.
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Superfund Designations Could Fuel PFAS Litigation
News
19 Apr 2024 | U.S. News
EPA officials have said that the agency will prioritize enforcement against PFAS manufacturers.
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Relationship between crustacean consumption and serum perfluoroalkyl substances (PFAS): the Korean National Environmental Health Survey (KoNEHS) cycle 4
Science
19 Apr 2024 | Ann Occup Environ Med
Frequent consumption of crustaceans is linked to higher concentrations of PFAS such as PFOS, PFNA, and PFDeA in the blood of the general Korean population.