Latest Science

Associations between PFAS concentrations and the oxidative status in a free-living songbird (Parus major) near a fluorochemical facility

25 Sep 2023 | Environ Pollut

Some songbirds with high PFAS concentrations exhibit increased antioxidant defenses, indicating that they have managed to protect themselves against potential PFAS-induced oxidative stress, which may impact their overall well being.

Impact of per-and polyfluorinated alkyl substances (PFAS) on the marine environment: Raising awareness, challenges, legislation, and mitigation approaches under the One Health concept

25 Sep 2023 | Mar. Pollut. Bull.

The authors call for more recognition of the long-term impact of PFAS on the marine environment, discussing mitigation challenges and approaches, regulations and ecosystem management, and the exacerbation of PFAS persistence and bioaccumulation by climate changes and synergies with other pollutants.

A critical review of perfluoroalkyl and polyfluoroalkyl substances (PFAS) landfill disposal in the United States

25 Sep 2023 | Sci. Total Environ.

Annually, an estimated 7.5 metric tons of PFAS enter municipal solid waste landfills, with the majority staying in the solid waste and 16% leaving through leachate and landfill gas.

Per-and polyfluoroalkyl substances chemical degradation strategies: insights into the underlying reaction mechanisms

18 Sep 2023 | Curr. Opin. Chem. Eng.

This review discusses how PFAS are degraded by different mechanisms in order to facilitate the advancement of PFAS destruction methods.

An integrated assessment of ecological and human health risks of per- and polyfluoroalkyl substances through toxicity prediction approaches

18 Sep 2023 | Sci Total Environ

PFOS and PFOA are the most prevalent PFAS in surface water and in humans, and modeling indicates that they result in endocrine disruption and multi-generational behavioral effects.

Serum concentrations of per- and polyfluoroalkyl substances and risk of renal cell carcinoma in the Multiethnic Cohort Study

14 Sep 2023 | Environ. Int.

Researchers found a significant positive correlation between PFNA and renal cell carcinoma risk, particularly in African American participants but also in Native Hawaiian and White participants.

Per-and polyfluoroalkyl substances, gestational weight gain, postpartum weight retention and body composition in the UPSIDE cohort

11 Sep 2023 | Environmental Health

PFOA and PFHxS exposure during pregnancy are associated with altered patterns of gestational weight gain and post-partum adiposity with potential implications for fetal development and long-term maternal cardiometabolic health.

Target and Suspect Screening Integrated with Machine Learning to Discover Per- and Polyfluoroalkyl Substance Source Fingerprints

11 Sep 2023 | Environ Sci Technol

This study uses high-resolution mass spectrometry to identify specific PFAS fingerprints associated with various sources, including AFFF-contaminated groundwater, landfill leachate, biosolids leachate, wastewater treatment plant effluent, and wastewater effluent from the pulp and paper and power generation industries.

Per- and polyfluoroalkyl substances and organofluorine in lakes and waterways of the northwestern Great Basin and Sierra Nevada

10 Sep 2023 | Sci Total Environ

PFAS were detected in 85% of samples, with 6:2 FTS detection indicating AFFF impacts in surface waters.

Adverse birth outcomes related to concentrations of per- and polyfluoroalkyl substances (PFAS) in maternal blood collected from pregnant women in 1960-1966

9 Sep 2023 | Environ Res

Using data from a US-based cohort study, measured maternal PFAS levels from the 1960s were extremely high and were associated with lower birth weight and impaired fetal growth.

Per- and polyfluoroalkyl substances and sleep health in U.S. adults, NHANES 2005-2014

6 Sep 2023 | Environ Res

No indications were found that exposure to four legacy PFAS compounds has a detrimental impact on the self-reported sleep quality of U.S. adults.

Dermal bioaccessibility of perfluoroalkyl substances from household dust; influence of topically applied cosmetics

6 Sep 2023 | Environ Res

In vitro testing revealed that dermal contact with dust may be an important exposure pathway for many PFAS, and that personal care products like sunscreen and moisturizer may change how the body is exposed to PFAS through the skin.

Comparative study of Per-and Polyfluoroalkyl substances (PFAS) removal from landfill leachate

31 Aug 2023 | Chemosphere

Foam fractionation and anion exchange resin treatment were the most cost-effective methods for removing >90% of PFOA and PFOS, while nanofiltration was the only method practical for short-chain PFAS removal.

First observations of a potential association between accumulation of per- and polyfluoroalkyl substances in the central nervous system and markers of Alzheimer's disease

31 Aug 2023 | J Gerontol A Biol Sci Med Sci

PFAS accumulation in the central nervous system was potentially linked to clinical and biological markers of Alzheimer’s disease.

Novel Per- and Polyfluoroalkyl Substances Discovered in Cattle Exposed to AFFF-Impacted Groundwater

30 Aug 2023 | Environ Sci Technol

The results suggest that targeting only the major PFAS analytes in bovine serum of AFFF-exposed mammals likely underestimates the toxicological risks associated with their exposure.

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