What's New With PFAS This Week
Matthew Von Hendy
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Peer Reviewed Articles
In a typical week more than 200 peer reviewed PFAS related articles are published--below is a small sample of recent articles.
PFAS covers many different subject areas--ranging from wastewater treatment to law to fashion. It can be easy to miss something important.
If you need to find PFAS related research, get in touch with us at: matt@greenheroninfo.net
Arima, Y., et al. (2024). "Multiphoton-driven Photocatalytic Defluorination of Persistent Perfluoroalkyl Substances and Polymers by Visible Light." Angew Chem Int Ed Engl: e202408687.
Perfluoroalkyl substances (PFASs) and fluorinated polymers (FPs) have been extensively utilized in various industries, whereas their extremely high stability poses environmental persistence and waste treatment. Current decomposition approaches of PFASs and FPs typically require harsh conditions such as heating over 400°C. Thus, there is a pressing need to develop a new technique capable of decomposing them under mild conditions.
Biek, S. K., et al. (2024). "Challenges and Remediation Strategies for Per- and Polyfluoroalkyl Substances (PFAS) Contamination in Composting." Sustainability 16(11).
Municipal solid waste (MSW) is projected to rise to 3.4 billion tonnes by 2050, with only 33% undergoing environmentally friendly management practices. Achieving a circular economy involves sustainable approaches, among which diverting waste from landfills to composting plays a crucial role. However, many of the products society uses and discards in MSW daily contain per- and polyfluoroalkyl substances (PFAS), raising concerns that composts may inadvertently introduce PFAS into the environment, posing a significant challenge to waste management and environmental sustainability.
Borghese, M. M., et al. (2024). "Serum concentrations of legacy, alternative, and precursor per- and polyfluoroalkyl substances: a descriptive analysis of adult female participants in the MIREC-ENDO study." Environmental Health: A Global Access Science Source 23(1 C7 - 55).
Background: Several legacy and emerging per- and polyfluoroalkyl substances (PFAS) have been regulated around the world. There is growing concern over the proliferation of alternative PFAS, as well as PFAS precursors. Biomonitoring data for PFAS are critical for assessing exposure and human health risk. Methods: We collected serum samples from 289 adult female participants in a 2018–2021 follow-up study of the Maternal-Infant Research on Environmental Chemicals (MIREC) Canadian pregnancy cohort. © Crown 2024.
Dauwe, Y., et al. (2024). "Synergistic Steatosis Induction in Mice: Exploring the Interactions and Underlying Mechanisms between PFOA and Tributyltin." Cells 13(11).
This study explores the impact of environmental pollutants on nuclear receptors (CAR, PXR, PPAR alpha, PPAR gamma, FXR, and LXR) and their heterodimerization partner, the Retinoid X Receptor (RXR). Such interaction may contribute to the onset of non-alcoholic fatty liver disease (NAFLD), which is initially characterized by steatosis and potentially progresses to steatohepatitis and fibrosis.
Deligiannis, M., et al. (2024). "Study on the fate of per- and polyfluoroalkyl substances during thermophilic anaerobic digestion of sewage sludge and the role of granular activated carbon addition." Bioresour Technol: 131013.
Limited information is available on the removal of per- and polyfluoroalkyl substances (PFAS) in anaerobic digestion (AD). Τhe fate of six PFAS was studied in thermophilic bioreactors in the presence of granular activated carbon (GAC) and voltage application. Reactors with GAC exhibited lower concentrations of volatile fatty acids and higher methane production compared to those with and without the application of voltage.
Hari, A., et al. (2024). "Exposure to PFAS chemicals induces sex-dependent alterations in key rate-limiting steps of lipid metabolism in liver steatosis." Front Toxicol 6: 1390196.
Although PFAS and PAH are classified as chemicals of concern, their molecular mechanisms of toxicity remain to be explored in detail. In this study, we aimed to identify potential mechanisms by which an acute exposure to PFAS and PAH chemicals can induce lipid accumulation and whether the responses depend on chemical class, dose, and sex. To this end, we analyzed mechanisms beginning with the binding of the chemical to a molecular initiating event (MIE) and the consequent transcriptomic alterations.
Hill, N. I., et al. (2024). "Bioconcentration of per- and polyfluoroalkyl substances and precursors in fathead minnow tissues environmentally exposed to aqueous film-forming foam-contaminated waters." Environ Toxicol Chem.
Decades of fire training activity at Joint Base Cape Cod (MA, USA) incorporated the use of aqueous film-forming foam (AFFF), which resulted in long-term PFAS contamination of sediments, groundwater, and hydrologically connected surface waters. To explore the bioconcentration potential of PFAS in complex environmental mixtures, a mobile laboratory was established to evaluate the bioconcentration of PFAS from AFFF-impacted groundwater by flow-through design. © 2024 The Author(s). Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
Huang, X., et al. (2024). "Comparison of perfluoroalkyl substance adsorption performance by inorganic and organic silicon modified activated carbon." Water Res 260: 121919.
Owing to the persistence and increasingly stringent regulations of perfluoroalkyl substances (PFAS), it is necessary to improve their adsorption capacities using activated carbon (AC). However, their adsorption capacities are suppressed by dissolved organic matter (DOM). In this study, two ACs modified with organic silicon (C-OS) and inorganic silicon (C-IS) were synthesized and used for the adsorption of PFAS in raw water (RW).
Kersnáková, Z., et al. (2024). "Occurrence and Consequences of Matrix Effects in Simultaneous Multi-class LC-MS/MS Determination of Pesticides, Pharmaceuticals and Perfluoroalkylsubstances in Different Types of Groundwater." Water Air and Soil Pollution 235(6).
Matrix effects are a recent remarkable feature in quantitative LC-MS/MS analysis. In this work, the matrix effects of a multiclass mixture of 46 analytes - pesticides, pharmaceuticals and perfluoroalkylsubstances in different types of natural groundwater were studied. Groundwater samples were spiked with different standards from different chemical groups and determined by direct injection and liquid chromatography coupled to tandem mass spectrometry.
Kim, H. H., et al. (2024). "Removal of PFAS by hydrotalcite: Adsorption mechanisms, effect of adsorbent aging, and thermal regeneration." Water Res 260: 121925.
Layered double hydroxides (LDH) have been shown to be effective adsorbents, but their utility for the treatment of per- and polyfluoroalkyl substances (PFAS) in water has not been fully explored. In this study, the adsorption of 9 PFAS on hydrotalcite (HT), a type of LDH, was investigated using reaction solutions with environmentally relevant PFAS concentrations.
Libenson, A., et al. (2024). "PFAS-Contaminated Pesticides Applied near Public Supply Wells Disproportionately Impact Communities of Color in California." ACS ES T Water 4(6): 2495-2503.
PFAS monitoring in groundwater is limited and fails to consider pesticides found to contain PFAS as a potential contamination source. Given previous findings on the disproportionate exposure of communities of Color to both pesticides and PFAS, we investigated disparities in PFAS-contaminated pesticide applications in California based on community-level sociodemographic characteristics.
PFAS Federal Register/Federal Government
US EPA (6/11)
US EPA (6/17)
US EPA (6/18)
US Air Force
Recommended by LinkedIn
PFAS Weekly US State News
If you are tracking PFAS news, happenings and business development opportunities in a particular area, contact us to find out about PFAS Local Service -- contact us at matt@greenheroninfo.net
Air Force has spent nearly $59 million to deal with PFAS chemicals at Wright-Patterson Air Force Base (daytondailynews.com)
East metro residents demanding bottled water during wait for state to test wells for PFAS - KSTP.com 5 Eyewitness News
Colorado law design to keep people safe from PFAS means certain products will be taken off shelves - CBS Colorado (cbsnews.com)
Baltimore sues Coke, Pepsi and other producers of plastic, citing pollution concerns – Baltimore Sun
PFAS Reports -- Other Sources
Why Banning PFAS Across Cosmetics and Other Industries Right Now is Misguided [opinion] | Cosmetics & Toiletries (cosmeticsandtoiletries.com)
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