Latest Science

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.

Determination of per- and polyfluoroalkyl substances (PFAS) in six different fish species from Swiss lakes

1 Oct 2024 | Anal Bioanal Chem

Significant PFAS contamination was found in freshwater fish from Swiss lakes, particularly in European Perch, with PFOS and PFHxS levels often exceeding EU safety limits, highlighting the need for ongoing monitoring and regulation to protect aquatic ecosystems and human health through decreased fish consumption.

Tissue distribution and temporal and spatial assessment of per- and polyfluoroalkyl substances (PFAS) in smallmouth bass (Micropterus dolomieu) in the mid-Atlantic United States

30 Sep 2024 | Environ Sci Pollut Res Int

PFAS contamination was found in smallmouth bass from various river systems in the mid-Atlantic U.S., with higher concentrations linked to areas with more developed land and PFAS facilities like military installations and airports, emphasizing the effects of land use and point sources on fish contamination.

Kidney function mediates the association of per- and poly-fluoroalkyl substances (PFAS) and heavy metals with hepatic fibrosis risk

30 Sep 2024 | Environ Res

Exposure to heavy metals and PFAS increases the risk of liver damage, with declining kidney function playing a major role in worsening this effect, emphasizing the need to consider kidney health in managing liver disease risks.

Fluoropolymer sorbent for efficient and selective capturing of per- and polyfluorinated compounds

27 Sep 2024 | Nat Commun

A newly developed reusable polymeric sorbent, PFPE-IEX+, has been shown to efficiently capture over 98% of multiple PFAS contaminants from water sources, including drinking water and landfill leachate, with high sorption capacity and the potential for repeated regeneration.

Forecasting and Hindcasting PFAS Concentrations in Groundwater Discharging to Streams near a PFAS Production Facility

25 Sep 2024 | Environ. Sci. Technol.

PFAS was detected in groundwater that is nearly half a century old near North Carolina's Cape Fear River, and is expected to persist above safe levels in discharge to streams until at least 2050-2060, highlighting the long-term environmental impact of these chemicals.

Prenatal exposure to PFAS and the association with neurobehavioral and social development during childhood

25 Sep 2024 | Int J Hyg Environ Health

Prenatal exposure to PFAS shows mixed effects on children's neurobehavioral and social development markers like behavioral issues and anxiety, but strong associations were not found in this population with low PFAS exposure and depended on the children’s sex, type of PFAS, and developmental outcome.

Antibody response to SARS-CoV-2 mRNA vaccination in Danish adults exposed to per-and polyfluorinated substances: The ENFORCE study

24 Sep 2024 | Environ Res

No clear association was found between PFAS exposure and immune responses to initial COVID-19 vaccines, but higher PFAS exposure was weakly associated with a diminished immune response to booster vaccines.

A 20-Year study reveal decrease in per- and polyfluoroalkyl substances (PFAS) in a pelagic seabird from the Western Mediterranean

24 Sep 2024 | Environ Pollut

PFAS levels in the livers of a Mediterranean seabird have decreased by 77%, though persistent detection of these chemicals, especially PFOS and its substitutes, highlights the ongoing need for stronger global efforts to reduce environmental PFAS pollution.

Per-and polyfluoroalkyl substances and disrupted sleep: mediating roles of proteins

23 Sep 2024 | Environmental Advances

Exposure to certain PFAS chemicals has been associated with shorter sleep duration and increased sleep disturbances in young adults, potentially due to disruptions in metabolic and immune system functions.

Per-and polyfluoroalkyl substances (PFAS) in floor dust from different indoor environments in Australia: Levels, variation, and human exposure risks

19 Sep 2024 | Chemosphere

Human exposure to PFAS through dust varies across indoor environments, with higher concentrations found in offices compared to houses and public transport vehicles.

Multimedia and Full-Life-Cycle Monitoring Discloses the Dynamic Accumulation Rules of PFAS and Underestimated Foliar Uptake in Wheat near a Fluorochemical Industrial Park

18 Sep 2024 | Environ. Sci. Technol.

PFAS contamination near a major industrial park in China, particularly from airborne deposition, has led to significant accumulation in soil and wheat, with spray irrigation increasing PFAS absorption in wheat compared to flood irrigation. Local residents have high exposure risks through wheat consumption and air inhalation.

Storms mobilize organophosphate esters, bisphenols, PFASs, and vehicle-derived contaminants to San Francisco Bay watersheds

18 Sep 2024 | Environ Sci Process Impacts

Stormwater runoff in San Francisco Bay watersheds contains several PFAS and flame retardants, with some concentrations exceeding safe levels, posing significant toxicity risks to aquatic ecosystems.

Levels and trends of persistent organic pollutants in human populations living in the Arctic

17 Sep 2024 | Int J Circumpolar Health

Long-chain PFAS, such as PFNA and PFDA, are increasing in Arctic populations, especially in Greenland and Nunavik, due to their bioaccumulation in marine wildlife, posing significant health risks.

Per-and polyfluoroalkyl substances (PFAS) in drinking water in Southeast Los Angeles: Industrial legacy and environmental justice

16 Sep 2024 | Sci. Total Environ.

PFAS were detected in 30% of tap water samples from California, with the highest concentrations found in low-income, predominantly Latino communities in heavily industrialized areas of Southeast Los Angeles, highlighting the need for improved water testing and regulations to protect vulnerable populations.

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