Latest Science

Internal Relative Potency Factors for the Risk Assessment of Mixtures of Per- and Polyfluoroalkyl Substances (PFAS) in Human Biomonitoring

26 Sep 2022 | EHP

It is recommended to assess the health risk resulting from exposure to PFAS as combined, aggregate exposure to the extent feasible.

Per- and Polyfluoroalkyl Substances in North American School Uniforms

21 Sep 2022 | ES&T

High PFAS levels in school uniforms could be an important source of PFAS exposure for children.

Waxing activity as a potential source of exposure to per- and polyfluoroalkyl substances (PFAS) and other environmental contaminants among the US ski and snowboard community

20 Sep 2022 | Environ Res

The majority of winter sports enthusiasts use PFAS-containing waxes and solvents with minimal exposure interventions, suggesting the need for further investigation into wax-related PFAS exposure.

First report on per- and polyfluoroalkyl substances (PFASs) in coral communities from the Northern South China sea: Occurrence, seasonal variation, and interspecies differences

20 Sep 2022 | Environ Pollut

PFHxS accounted for 43% of total PFAS detected in corals with short-chain PFAS concentrations higher than legacy PFAS, though concentrations depended on seasonal factors and coral type.

Emerging contaminants migration from pipes used in drinking water distribution systems: a review of the scientific literature

20 Sep 2022 | Environ Sci Pollut Res Int

PFOA, PFNA, PFDA, PFOS, and PFHxS were detected at levels indicating a potential non-carcinogenic health risk to consumers.

Characterization of per-and polyfluoroalkyl substances on fire suppression system piping and optimization of removal methods

19 Sep 2022 | Chemosphere

Fire suppression systems accumulate residual PFAS in pipe surfaces due to AFFF use, and new fluorine-free foam can be contaminated with PFAS if the systems are not properly cleaned.

Childhood exposure to per-and polyfluoroalkyl substances and neurodevelopment in the CHARGE case-control study

12 Sep 2022 | Environ Res

Childhood PFOA, PFHpA, and a PFAS mixture were associated with increased odds of autism spectrum disorder.

PFAS concentrations and deposition in precipitation: An intensive 5-month study at National Atmospheric Deposition Program–National trends sites (NADP-NTN) across Wisconsin, USA

10 Sep 2022 | Atmos. Environ.

PFCAs were detected in 83% of rainwater samples, and differences in sites’ chemical profiles suggest that local PFAS sources can influence the PFAS collected in rain.

Associations of perfluoroalkyl and polyfluoroalkyl substances with gestational hypertension and blood pressure during pregnancy: A cohort study

8 Sep 2022 | Environ Res

Higher concentrations of PFAS during early pregnancy were associated with lower gestational hypertension risk and reduced blood pressure measures in the third trimester in a population with relatively high exposure levels.

Drinking Water-Associated PFAS and Fluoroethers and Lipid Outcomes in the GenX Exposure Study

7 Sep 2022 | Environ Health Perspect

PFNA and PFOS exposure through drinking water was associated with higher levels of total cholesterol, especially in older adults.

Feeding and contaminant patterns of sub-arctic and arctic ringed seals: Potential insight into climate change-contaminant interactions

6 Sep 2022 | Environ. Pollut.

This paper demonstrates an important intersection between climate & toxics: that as climate change drives seals to consume different foods, their consumption of newer contaminants like PFAS may increase.

Distribution of Per-and Poly-fluoroalkyl Substances and Their Precursors in Human Blood

5 Sep 2022 | J. Hazard. Mater.

This study reports for the first time the partitioning of N-MeFOSA and N-EtFOSA in human blood.

A rapid assessment bioaccumulation screening (RABS) study design for emerging per-and polyfluoroalkyl substances in mice exposed to industrially impacted surface water

2 Sep 2022 | Chemosphere

A novel method was developed that can predict the bioaccumulation of PFAS mixture without chemical standards.

Glioma is Associated with Exposure to Legacy and Alternative Per-and Polyfluoroalkyl Substances

30 Aug 2022 | J. Hazard. Mater.

Higher concentrations of certain PFAS in brain tissue were associated with an increased risk of brain cancer.

Per- and polyfluoroalkyl substances exposure and its influence on the intestinal barrier: An overview on the advances

30 Aug 2022 | Sci Total Environ

This review summarizes current relationships between PFAS exposure and intestinal barrier damage and encourages further study to confirm the adverse effects of PFAS on the gastrointestinal tract.

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