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• Insights into the effects of salinity on the sorption and desorption of legacy and emerging per-and polyfluoroalkyl substances (PFASs) on marine sediments

  Science

  16 Feb 2022 | Environ Pollut

  The desorption rate of PFAS from marine sediment decreases with increased perfluorocarbon chain length of PFAS and increased sediment salinity.

• New York PFAS Products Bill Has Broad Implications

  Policy

  15 Feb 2022

  A New York PFAS products bill aims to mimic the Maine law and implement a ban on intentionally added PFAS in products manufactured in New York.

• Concentrations of per- and polyfluoroalkyl substances (PFAS) in human placental tissues and associations with birth outcomes

  Science

  15 Feb 2022 | Chemosphere

  All tested placenta samples contained detectable PFAS, including PFOS, PFOA, PFNA, and PFDA in >96% samples, and placental PFOS was associated with lower birth weight for in male infants and higher birth weight in female infants.

• Sulfonamide functional head on short-chain perfluorinated substance drives developmental toxicity

  Science

  15 Feb 2022 | iScience

  FBSA significantly disrupted normal gene expression in a human model species while other short-chain PFAS induced changes in larval behavior.

• Human exposure to F-53B in China and the evaluation of its potential toxicity: An overview

  Science

  15 Feb 2022 | Environ Int

  A review of a novel PFAS demonstrated hepatotoxicity, endocrine disruption, reproductive, and developmental toxicity, and suggested further research given the extreme biopersistence of F-53B.

• Fire Test Performance of Eleven PFAS-Free Class B Firefighting Foams Varying Fuels, Admixture, Water Types and Foam Generation Techniques

  Science

  14 Feb 2022 | Fire Tech.

  PFAS-free firefighting foams were found to meet performance requirements depending on the foam generation technique and the type of fuel or water on which the foams were applied.

• Bioremediation of perfluorochemicals: current state and the way forward

  Science

  7 Feb 2022 | Bioprocess Biosyst Eng

  This review examines the efficiencies of the different bacterial, plant, and fungal species in PFAS bioremediation under different conditions, their limitations, and their improvement.

• Hepatic Fatty Acid Profiles Associated with Exposure to Emerging and Legacy Halogenated Contaminants in Two Harbor Seal Populations across the North Atlantic

  Science

  7 Feb 2022 | ES&T

  Several flame retardants and PFAS chemicals were significantly associated with changes in liver fatty acid profiles in seals from Maine and Sweden.

• Release of perfluoroalkyl substances from AFFF-impacted concrete in a Firefighting Training Ground (FTG) under repeated rainfall simulations

  Science

  7 Feb 2022 | J. Hazard. Mater.

  High concentrations of 5 PFAS were measured in concrete cores removed from firefighting training grounds, and simulated rainfall released approximately 1% of the total PFAS mass in the concrete surface layer, leading researchers to believe that concrete can be a secondary source of PFAS contamination.

• Per- and polyfluoroalkyl substances in the environment

  Science

  7 Feb 2022 | Science

  This review summarizes the sources, transport, degradation, and toxicological implications of the megatonne of PFAS produced yearly, highlighting the importance of investigating potential PFAS replacements, the importance of lifecycle considerations, and that PFAS remediation efforts are still in their infancy.

• Gestational exposure to GenX induces hepatic alterations by the gut-liver axis in maternal mice: A similar mechanism as PFOA

  Science

  1 Feb 2022 | Sci Total Environ

  Gestational exposure to PFOA or GenX induced similar disease indicator changes in maternal livers.

• A review of PFAS fingerprints in fish from Norwegian freshwater bodies subject to different source inputs

  Science

  1 Feb 2022 | Environ Sci Process Impacts

  Source tracking of PFAS exposure was most successful using fish livers, with fingerprints from AFFF dominated by PFOS and PFSA and fingerprints from paper production dominated by PFCAs and high ∑PFAS and PFOS.

• [Working Paper] Nordic enforcement project on PFOS and PFOA in chemical products and articles

  Policy

  25 Jan 2022

  The Nordic Enforcement Group found that 10% of chemical products and articles were non-compliant with restrictions on PFOA and PFOS, with more products containing other PFAS that are not yet restricted.

• Sulfonamide Functional Head on Short-Chain Perfluorinated Substance Drives Developmental Toxicity

  Science

  25 Jan 2022 | iScience

  FBSA exposure leads to changes in DNA that result in abnormal body structure and disrupted gene expression in human model species.

• [Working Paper] Nordic enforcement project on PFOS and PFOA in chemical products and articles

  Science

  25 Jan 2022 | Norden

  The Nordic Enforcement Group found that 10% of chemical products and articles were non-compliant with restrictions on PFOA and PFOS, with more products containing other PFAS that are not yet restricted.