Showing 916-930 of 1708
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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[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.
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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.
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[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.
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Background release and potential point sources of per-and polyfluoroalkyl substances to municipal wastewater treatment plants across Australia
Science
24 Jan 2022 | Chemosphere
About 60% of PFAS in Australian wastewater treatment plant influent was due to background release (at a rate of 8.1-24 μg/day/person) with the remaining ~40% due to point sources including industrial activities.
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Indiana firefighters could get annual blood testing for PFAS under proposed pilot program
Policy
20 Jan 2022
Indiana firefighters could get annual blood testing for exposure to synthetic PFAS chemicals through a proposed pilot program, according to a new bill introduced in the Statehouse.
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Perfluorooctanoic acid (PFOA)-induced alterations of biomolecules in the wetland plant Alisma orientale
Science
20 Jan 2022 | Sci Total Environ
FTIR was used to demonstrate the adverse effects of PFOA on plant growth and water uptake.
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Legal obstacles to toxic chemical research
Policy
17 Jan 2022
Amid debate about how policymakers should apply existing scientific findings, these science-hindering features are easy to overlook including insufficient availability of chemical standards, limited public access to information, and excessive fragmentation of information within and among government agencies.