What's New With PFAS This Week

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.

If you need to do a PFAS market analysis or landscape assessment, get in touch with us at: [email protected]

Peer Reviewed Articles

Battye, N., et al. (2024). "Mechanochemical degradation of per- and polyfluoroalkyl substances in soil using an industrial-scale horizontal ball mill with comparisons of key operational metrics." Sci Total Environ: 172274.

Horizontal ball mills (HBMs) have been proven capable of remediating per- and polyfluoroalkyl substances (PFAS) in soil. Industrial-sized HBMs, which could easily be transported to impacted locations for on-site, ex-situ remediation, are readily available. This study examined PFAS degradation using an industrial-scale, 267?L cylinder HBM. This is the typical scale used in the industry before field application. Near-complete destruction of 6:2 fluorotelomer sulfonate (6:2 FTS), as well as the non-target PFAS in a modern fluorotelomer-based aqueous film forming foam (AFFF), was achieved when spiked onto nepheline syenite sand (NSS) and using potassium hydroxide (KOH) as a co-milling reagent.

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Beisner, K. R., et al. (2024). "Temporal variability and sources of PFAS in the Rio Grande, New Mexico through an arid urban area using multiple tracers and high-frequency sampling." Emerging Contaminants 10(3).

Per- and polyfluoroalkyl substances (PFAS) are ubiquitous in the environment but sources are not well defined for temporal and spatial aspects within an urban environment, and especially for an arid urban environment subject to seasonal short term high -intensity precipitation events. A focused diel sampling was conducted in the summer of 2021 to assess the temporal and spatial variability of PFAS in the Rio Grande near Albuquerque, New Mexico and showed an order of magnitude increase of PFAS as it flows through the Albuquerque urban area. Discrete samples were collected at two different locations on the Rio Grande in addition to wastewater treatment plant (WWTP) effluent that discharges directly to the Rio Grande between the sampling locations. (c) 2024 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).

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Calore, F., et al. (2024). "Non-conventional sorption materials for the removal of legacy and emerging PFAS from water: A review." Emerging Contaminants 10(3).

Typically, PFAS removal from water relies on adsorption techniques using conventional sorption materials like activated carbons (ACs) and ion exchange resins (IERs). However, there is a continuous search for more efficient and performing adsorbent materials to better address the wide range of chemical structures of PFAS in the environment, to increase their selectivity, and to achieve an overall high adsorption capacity and faster uptake kinetics. In this context, results from the application of non-conventional sorption materials (i.e., readily available biological-based materials like proteins and advanced materials like nanocomposites and cyclodextrins) are reported and discussed… (c) 2024 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/ 4.0/).

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Clark, K. L., et al. (2024). "An environmentally relevant mixture of Perfluoroalkyl Substances (PFAS) impacts proliferation, steroid hormone synthesis, and gene transcription in primary human granulosa cells." Toxicol Sci.

This study investigated the effects of an environmentally relevant PFAS mixture [perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), perfluorohexanesulfonic acid (PFHxS)] on the transcriptome and function of human granulosa cells (hGCs). Primary hGCs were harvested from follicular aspirates of healthy, reproductive-age women who were undergoing oocyte retrieval for in vitro fertilization. LC/MS-MS was performed to identify PFAS compounds in pure follicular fluid.

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Dunn, F., et al. (2024). "Metabolomic changes following GenX and PFBS exposure in developing zebrafish." Aquat Toxicol 271: 106908.

Short chain per- and polyfluoroalkyl substances (PFAS), including hexafluoropropylene oxide dimer acid (GenX) and perfluorobutane sulfonate (PFBS), are replacement chemicals for environmentally persistent, long-chain PFAS. Although GenX and PFBS have been detected in surface and ground water worldwide, few studies provide information on the metabolic alterations or risks associated with their exposures. In this study, larval zebrafish were used to investigate the toxicity of early-life exposure to GenX or PFBS.

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Hamdani, S. S., et al. (2024). "Synthesis of Water-Dispersible Poly(dimethylsiloxane) and Its Potential Application in the Paper Coating Industry as an Alternative for PFAS-Coated Paper and Single-Use Plastics." Polymers (Basel) 16(7).

Polyethylene-, polyvinylidene chloride-, and per- and polyfluoroalkyl substance-coated paper generate microplastics or fluorochemicals in the environment. Here, we report an approach for the development of oil-resistant papers using an environmentally friendly, fluorine-free, water-dispersible poly(dimethylsiloxane) (PDMS) coating on kraft paper.

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Hu?ek, M., et al. (2024). "Removal of per- and polyfluoroalkyl substances and organic fluorine from sewage sludge and sea sand by pyrolysis." Biochar 6(1 C7 - 31).

Pyrolysis is one method for treating sewage sludge, particularly in remote areas or decentralised systems. The end product of pyrolysis, sludge-char, can serve as a soil improver. However, there is a lack of comprehensive data on the organic pollutants’ behaviour in sludge-char. In our work, we focused on the behaviour of per- and polyfluoroalkyl substances (PFASs). Sludge was pyrolyzed at 200–700?°C to determine the minimum safe temperature for effective PFASs removal. ? The Author(s) 2024.

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Iannone, A., et al. (2024). "There's Something in What We Eat: An Overview on the Extraction Techniques and Chromatographic Analysis for PFAS Identification in Agri-Food Products." Foods 13(7).

Although the occurrence of PFASs is widely investigated in scientific community, the standardization of analytical method for all matrices still remains an important issue. In this review, we discussed extraction and detection methods in depth to evaluate the best procedures of PFAS identification in terms of analytical parameters (e.g., limits of detection (LODs), limits of quantification (LOQs), recoveries

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Klymenko, R., et al. (2024). "Characterization of a hyperbolic vortex plasma reactor for the removal of aqueous phase micropollutants." Journal of Physics D-Applied Physics 57(21).

The present study focuses on the characterization of a hyperbolic vortex plasma reactor through the comparison of various plasma-atmospheric regimes for the production efficiency of reactive nitrogen (RNS) and reactive oxygen (ROS) species. The research also explores effectiveness in the removal of micropollutants, including pharmaceuticals and per- and polyfluoroalkyl substances (PFAS). The technology includes several degradation mechanisms, such as advanced oxidation, ultraviolet photolysis, ozonation, electrolysis, and shockwave water purification, without the need for additional chemicals.

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Koulini, G. V. and I. M. Nambi (2024). "Occurrence of forever chemicals in Chennai waters, India." Environmental Sciences Europe 36(1 C7 - 60).

India’s rapid economic growth necessitates a comprehensive understanding of its PFAS contamination levels and potential human and ecological exposure. Results: The present study reports the quantification of one long-chain and two short-chain perfluoroalkyl acids and three long-chain and two short-chain perfluorosulfonic acids and qualitative analysis using suspect screening in the waters of Chennai, Tamil Nadu, India. Samples were collected from surface and groundwater sources, including the Adyar river, Buckingham canal, Chembarambakkam lake, and the water treatment plant. ? The Author(s) 2024.

PFAS Federal Register/Federal Government

Biden-Harris Administration Finalizes First-Ever National Drinking Water Standard to Protect 100M People from PFAS Pollution | US EPA

US EPA (4/10)

FACT SHEET: Biden-Harris Administration Takes Critical Action to Protect Communities from PFAS Pollution in Drinking Water | The White House

The White House (4/10)

PFAS Weekly US State News

Report highlights high levels of PFAS chemicals in Midstate waterways (abc27.com)

ABC27 (Harrisburg, PA) 4/12

Vancouver to switch firefighters to non-toxic gear - BC | Globalnews.ca

Globalnews Canada (Vancouver, BC, Canada) 4/12

U.S. limits ‘forever chemicals’ in drinking water. What about Canada? - National | Globalnews.ca

GlobalNews Canada 4/12

NH advocates celebrate new limits on harmful PFAS chemicals in drinking water | New Hampshire Public Radio (nhpr.org)

New Hampshire Public Radio (New Hampshire) 4/11

EPA: Drinking water standards for six PFAS announced | WUNC

North Carolina Public Radio (North Carolina) 4/10

PFAS limits: 29 Colorado water systems don't meet new EPA standards (denverpost.com)

Denver Post (Denver, CO) 4/10

What are PFAS? EPA announces first-ever national drinking water limits on perfluoroalkyl and polyfluoroalkyl substances - ABC7 New York (abc7ny.com)

ABC7 (New York, NY) 4/10

New White House standard for PFAS chemicals in drinking water, millions in funding heading to Georgia and South Carolina (wtoc.com)

WTOC (Savannah, GA) 4/10

'Forever chemicals' are found in water sources around New Mexico, studies find | AP News

AP News (Albuquerque, NM) 4/10

PFAS in drinking water — and what you can do about it (nypost.com)

New York Post (New York, NY) 4/10

Indiana AG Todd Rokita PFAS lawsuit (fox59.com)

Fox59 (Indianapolis, IN) 4/9

State says 10 water systems in the metro have unsafe levels of PFAS, under new EPA rule (startribune.com)

Star Tribune (Minneapolis, MN) 4/10

EPA sets limit for ‘forever chemicals’ in drinking water - The Washington Post

Washington Post (Washington DC) 4/10

Evers vetoes a Republican-backed bill targeting PFAS chemicals | AP News

AP News (Madison, WI) 4/9

E.P.A. Says ‘Forever Chemicals’ Must Be Removed From Tap Water - The New York Times (nytimes.com)

New York Times (New York, NY) 4/10

PFAS in dozens of Rhode Island drinking water systems above EPA standards (providencejournal.com)

Providence Journal (Providence, RI) 4/12

VB firefighters file $1.5B lawsuit against over companies for PFAS exposure (wtkr.com)

WTKR (Virginia Beach, VA) 4/12

PFAS use in products banned in bipartisan vote in New Hampshire House (seacoastonline.com)

Portsmouth Herald (Portsmouth, NH) 4/11

Marquette County Board of Commissioners approves PFAS removal project (uppermichiganssource.com)

TV6 (Marquette, MI) 4/12

Fish mystery solved: Rainbow smelt are lower in PFAS than thought - mlive.com

Michigan Live (Lansing, MI) 4/14

Health department says 22 Minnesota water systems have PFAS above new federal limits | MPR News

MPR News (Minnesota) 4/11

5 Delaware water systems don't meet EPA standards for PFAS. What to know (delawareonline.com)

Delawareonline (Delaware) 4/13

Camas OK’s $1.6M contract to address PFAS in city’s water supply - The Columbian

The Columbian (Clark County, WA) 4/13

The EPA's new PFAS standards will help protect residents. But it will cost utilities billions of dollars | WUNC

North Carolina Public Radio (North Carolina) 4/12

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 [email protected]

PFAS Reports -- Other Sources

US finally gets nationwide regulation of PFAS in drinking water | News | Chemistry World

Explainer: Limits on PFAS in Drinking Water Could Fuel Litigation (insurancejournal.com)

Study maps "forever chemical" water contamination hotspots worldwide, including many in U.S. - CBS News

PFAS forever chemicals topped new EPA limits. Is yours on our map? (usatoday.com)

Maine Is a Warning for America’s PFAS Future - The Atlantic

Firefighting Gear Without PFAS Heads to North American Cities (bloomberglaw.com)

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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 [email protected]