Science

The Total Oxidizable Precursor (TOP) Assay as a Forensic Tool for Per-and Polyfluoroalkyl Substances (PFAS) Source Apportionment

5 Jul 2023 | ACS ES&T Water

Researchers created a model for allocating the sources of PFAS contamination using a more comprehensive detection method.

Occurrences and fates of per-and polyfluoralkyl substances in textile dyeing wastewater along full-scale treatment processes

1 Jul 2023 | Water Res

PFAS were found in high concentrations in textile dyeing wastewater treatment plant influent, effluent, and sludge, with additional PFAA increasing by a factor of 2.3-4.1 after oxidation by the TOP assay.

Research Progress on Neurodevelopmental Toxicity in Offspring after Indirect Exposure to PFASs in Early Life

30 Jun 2023 | MDPI

According to available scientific literature, early life exposure to PFAS may result in neurodevelopmental toxicity through oxidative stress and the development of abnormal nerve cells.

Prenatal exposure to per- and polyfluoroalkyl substances and infant sleep disturbance: A prospective cohort study

28 Jun 2023 | Environ Int

Exposure to several PFAS was significantly associated with an increased risk of sleep disturbance in infants, including nighttime awakenings, snoring, and longer nocturnal wakefulness.

Factors affecting serum PFAS concentrations among US females with surgically and naturally induced menopause: data from NHANES 2003-2018

27 Jun 2023 | Environ Sci Pollut Res Int

Supplementary hormone use, and specifically estrogen hormones, are associated with higher serum PFAS in postmenopausal women.

Per-and Polyfluoroalkyl Substances (PFAS) in United States Tapwater: Comparison of Underserved Private-Well and Public-Supply Exposures and Associated Health Implications

26 Jun 2023 | Environ. Int.

Models based on drinking water testing suggest that at least one PFAS is present in 45% of US drinking water. The authors recommend that monitoring should be improved by including more rural and private wells and by expanding target and non-target analysis methods.

Safer and effective alternatives to perfluoroalkyl-based surfactants in etching solutions for the semiconductor industry

26 Jun 2023 | J. Clean. Prod.

100 semiconductor manufacturers tested or adopted PFAS-free etching surfactants that showed superior wetting characteristics and predicted lower health harm compared to PFAS.

Flushing Home Plumbing Pipes Contaminated with Aqueous Film-Forming Foam Containing Per- and Polyfluoroalkyl Substances

24 Jun 2023 | J Environ Eng

Drinking water systems can be contaminated with AFFF through backflushing, and while flushing was found to reduce PFAS water concentrations 99.5-99.99%, PFAS were found to increase after stagnation likely due to PFAS adhered on water pipes.

Toward systematic understanding of adsorptive removal of legacy and emerging per-and polyfluoroalkyl substances (PFASs) by various activated carbons (ACs)

24 Jun 2023 | Environ Res

Particle size and surface properties of activated carbon affect their efficiency for PFAS removal, with increased efficiency when the activated carbon was chemically treated.

First Investigation of the Physiological Distribution of Legacy and Emerging Perfluoroalkyl Substances in Raw Bovine Milk According to the Component Fraction

22 Jun 2023 | Foods

In milk from 23 cows with no known PFAS exposure, PFOS was found in higher concentrations in cream compared to raw and skim milk, and PFBA was the most common PFAS detected.

Domestic Dogs and Horses as Sentinels of Per- and Polyfluoroalkyl Substance Exposure and Associated Health Biomarkers in Gray's Creek North Carolina

20 Jun 2023 | Environ Sci Technol

Many PFAS were detected in dogs and horses in areas with documented PFAS contamination, and as in humans, liver and kidney health in domestic animals may be sensitive to long-term PFAS exposures.

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