Showing 106-120 of 151
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Towards a Long-Chain Perfluoroalkyl Replacement: Water and Oil Repellent Perfluoropolyether-Based Polyurethane Oligomers
Science
3 May 2021 | Polymers (Basel)
A short-chain PFAS was developed to replace legacy chemicals without losing functionality.
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Bioactivity Profiling of Per- and Polyfluoroalkyl Substances (PFAS) Identifies Potential Toxicity Pathways Related to Molecular Structure
Science
28 Apr 2021 | Toxicology
Using 142 PFAS, key structural features were associated with receptor activity which can inform the design of new structures devoid of biological activity.
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PFAS-Tox Database
Science
21 Apr 2021
The PFAS-Tox Database was developed as a free, online, publicly available tool to explore the health and toxicology research published on 29 PFAS beyond PFOA and PFOS.
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[Press Release] Harmful PFAS chemicals are pervasive in building materials
News
21 Apr 2021
From the floor to the roof, the average building may be rife with persistent and potentially toxic “forever chemicals” called PFAS.
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Fluorine-Specific Detection Using ICP-MS Helps to Identify PFAS Degradation Products in Nontargeted Analysis
Science
19 Apr 2021 | Anal Chem
The feasibility of the detection of PFAS metabolites using a fluorine-specific detection was demonstrated using a model compound and can thus be applied to new experiments and unknown organofluorine-containing samples in the future.
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Exploring Unknown Per- and Polyfluoroalkyl Substances in the German Environment – the Total Oxidizable Precursor Assay as Helpful Tool in Research and Regulation
Science
7 Apr 2021 | Sci. Total Environ.
Time trend analysis showed decreasing trends for most detected PFAS since 2005 with the results demonstrating that target analysis detects only a minor fraction of the PFAS burdens in environmental samples.
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Getting control of PMT and vPvM substances under REACH
Events
25 Mar 2021
This workshop will feature case studies of selected, emerging PMT/vPvM substances that are attracting increasing attention (e.g. ChemSEC's SIN List).
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Hydrolysis of FTOH precursors, a simple method to account for some of the unknown PFAS
Science
3 Mar 2021 | Chemosphere
Analysis of extracts of textile samples with preliminary hydrolysis and without it showed up to 1300-fold higher level of “hidden” FTOHs.
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Regulating PFAS as a Chemical Class under the California Safer Consumer Products Program
Science
22 Feb 2021 | Environ Health Perspect
In this commentary, we present the rationale adopted by the State of California's DTSC for regulating PFAS as a class in certain consumer products.
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Response to “Comment on Scientific Basis for Managing PFAS as a Chemical Class
Science
1 Feb 2021 | Environ. Sci. Technol
Here we are responding to the comment by Singh and Papanastasiou who disagree with a class-based approach to PFAS and build their argument around hydrochlorofluorocarbons.
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Comparison of currently available PFAS remediation technologies in water: A review
Science
28 Jan 2021 | J Environ Manage
In this review, extra consideration is given to novel advanced techniques for PFAS including short chain PFAS removal, and compare their efficiencies, effectiveness, energy use, sustainability, cost, and simplicity in laboratory scale to field applications.
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Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000-2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales
Science
20 Jan 2021 | Environ Sci Technol
Short-chain PFAS were found in beluga whales which indicates that the continuous emissions of unregulated PFAS into the environment.
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Atmospheric particulate represents a source of C8–C12 perfluoroalkyl carboxylates and 10:2 fluorotelomer alcohol in tree bark
Science
18 Jan 2021 | Environ. Poll.
Overall, this study provides the first evidence that atmospheric particulate is an obvious source of C8–C12 PFCAs and 10:2 FTOH in tree bark.
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[Blog] How many of us are drinking toxic forever chemicals?
News
12 Jan 2021 | BioMed Central
A recent study found that nearly 100 million people in 16 out of 66 cities investigated in China are likely using drinking water that exceeds 20 ppt for the sum of five PFAS (PFOA, PFOS, PFHxS, PFHpA, and PFNA), new maximum contaminant level set by the U.S. state of Vermont.
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Deterministic risk assessment of firefighting water additives to terrestrial organisms
Science
12 Jan 2021 | Environ Sci Pollut Res Int
A number of PFAS-free firefighting water additives were found to pose a hazard to terrestrial organisms based on a worst-case exposure scenario of direct application at the greatest recommended application rate for a class A fire (e.g., wood, paper).