Latest Science
Statistical Mapping of PFOA and PFOS in Groundwater throughout the Contiguous United States
23 Oct 2024 | Environ Sci Technol
Mapping PFAS contamination in U.S. groundwater is challenging due to inconsistent testing, but a new statistical approach using ecological modeling helps create continuous maps of PFAS distribution, guiding future sampling and addressing health risks from these chemicals.
Regulation of terrestrial input and ocean processes on the occurrence and transport of traditional and emerging per-and polyfluoroalkyl substances in the inner shelf of the East China Sea
21 Oct 2024 | Water Research
Coastal oceans show significant accumulation of PFAS in nearshore waters due to terrestrial inputs, industrial sources, and hydrological conditions, with certain PFAS compounds posing elevated ecological risks in regions like the East China Sea.
PFAS profiles in Biosolids, Composts, and Chemical Fertilizers Intended for Agricultural Land Application in Quebec (Canada)
21 Oct 2024 | J. Hazard. Mater.
Biosolids, sewage sludge, and composts used for sustainable agriculture may contain PFAS chemicals that can accumulate in soil and enter the food chain, with this study finding significant PFAS levels across various biowastes in Quebec, Canada, highlighting concerns about long-term environmental and health risks from repeated applications.
Insights into PFAS contaminants before and after sewage discharges into a marine protected harbour
21 Oct 2024 | Chemosphere
Untreated wastewater discharges in the UK are causing elevated levels of harmful PFAS chemicals in protected marine areas, with significant contamination found in water, seaweed, and oysters, underscoring the need for better wastewater management and a deeper understanding of PFAS impacts on marine ecosystems.
Trends in NHANES Biomonitored Exposures in California and the United States following Enactment of California’s Proposition 65
21 Oct 2024 | EHP
California's Proposition 65 aimed to reduce exposure to harmful chemicals like PFAS, but despite overall declines in these substances nationwide, it's uncertain if the law directly drove the reductions, as broader regulations and public awareness may have played significant roles.
Role of Fluorocarbon Chain Length in the Adsorption of Perfluoroalkyl Substances on Nanoplastic Particles
20 Oct 2024 | ACS ES&T Water
In aquatic environments, nanoplastics and PFAS can interact through electrostatic forces, with PFAS adsorption on oppositely charged nanoplastics leading to changes in particle stability depending on PFAS chain length and water chemistry, influencing how these contaminants might spread in different water conditions.
Prenatal exposure to per- and polyfluoroalkyl substances, fetoplacental hemodynamics, and fetal growth
20 Oct 2024 | Environ Int
Legacy PFAS exposure during pregnancy may be linked to reduced fetal growth, but the effects of next-generation PFAS and PFAS mixtures are less clear, with further research needed to understand their impact on fetoplacental blood flow.
Fluorotelomer Alcohol (FTOH) Emission Rates from New and Old Rain Jackets to Air Determined by Iodide High-Resolution Chemical Ionization Mass Spectrometry
16 Oct 2024 | Indoor Environments
Older rain jackets released high amounts of fluorotelomer alcohols (FTOHs) into indoor air, raising concerns about indoor PFAS exposure through clothing, and even newer “PFAS-free” jackets emitted small amounts of PFAS, likely through contamination during transport or storage.
Comprehensive analysis of PFAS presence from environment to plate
16 Oct 2024 | npj Science of Food volume
Fish, seafood, and biota show the highest PFAS concentrations due to environmental contamination and bioaccumulation, along along with frequent detections in surface water, raising concerns about long-term ecological and human health effects.
Removal of Per-and Polyfluoroalkyl Substances (PFAS) in Fixed Bed Anion Exchange Reactors: Factors Determining PFAS Uptake Capacity and Models Predicting PFAS Breakthrough
13 Oct 2024 | Water Research
Anion exchange processes can effectively remove PFAS from water, but their efficacy is influenced by PFAS structure and other chemicals dissolved in the water. New models were developed to predict PFAS removal based on these factors in water treatment.
Partitioning of Neutral PFAS in Homes and Release to the Outdoor Environment: Results from the IPA Campaign
10 Oct 2024 | Indoor Environments
A study measuring neutral PFAS in 11 North Carolina homes found that (fluorotelomer alcohols) FTOHs dominate in dust, HAC filter, and dryer lint samples, while perfluorooctane sulfonamidoethanols (FOSEs) are most prevalent in airborne particles.
The potential mediating role of the gut microbiome and metabolites in the association between PFAS and kidney function in young adults: A proof-of-concept study
10 Oct 2024 | Sci Total Environ
Researchers reported for the first time that changes to the gut microbiome may explain the association between high PFAS exposure and impaired kidney function.
Uptake of PFAS into forages grown in contaminated soil, a key aspect of the soil-to-livestock exposure pathway
8 Oct 2024 | J. Agric. Food Chem.
PFAS uptake from contaminated soil into different plants was measured in order to better model soil-to-livestock exposure scenarios, which is essential to guide farm management to reduce PFAS exposure in livestock and humans.
Serum per- and polyfluoroalkyl substance (PFAS) levels and health-related biomarkers in a pilot study of skiers in New England
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.
Skin Permeability of Perfluorocarboxylic Acids Using Flow-Through Diffusion on Porcine Skin
7 Oct 2024 | Toxics
Using porcine skin, PFBA showed higher skin permeability compared to other PFAS, and although overall absorption was low, these chemicals can accumulate in the skin, potentially acting as a long-term reservoir. Using porcine skin, PFBA showed higher skin permeability compared to other PFAS, and although overall absorption was low, these chemicals can accumulate in the skin, potentially acting as a long-term reservoir.