Science Inventory

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Many aqueous film forming foam (AFFF) delivery systems in aircraft hangars and firefighting vehicles may require thorough cleaning to avoid ongoing environmental impacts from residual per- and polyfluoroalkyl substances (PFAS) within those systems. Though replacement AFFF formula...

Per- and polyfluoroalkyl substances (PFAS) are a class of thousands of industrially-produced compounds that have been released into the environment for decades. They are often long-lived, resulting in their distribution throughout the globe in all environmental media, and earning...

Multiple solid phase extraction (SPE) methods in combination with liquid chromatography and high-resolution mass spectrometry were explored to help characterize the captured chemical space and improve interpretation of non-targeted results. Reference standards for 231 surrogate c...

PFAS have been used for a wide variety of applications, and have been found in public water systems and at multiple contaminated sites in the US and abroad. In addition, manufacturers continue to design and produce new chemicals in this class that have the potential to be release...

The phaseout of per- and polyfluoroalkyl substances (PFAS) in firefighting foams has motivated the adoption of fluorine-free foams (F3), yet their environmental fate remains poorly understood. This study provides the first comprehensive assessment of F3 biodegradation under both ...

Perfluorooctanoic acid (PFOA) and other per and polyfluorinated alkyl substances (PFAS) are emerging environmental contaminants of concern. Incineration is a common method of PFAS destruction and disposal, but due to the strength and stability of C&ndash;F chemical bonds, the pro...

This study investigates the co-occurrence and concentrations of emerging contaminants in urban sewer overflows. Combined sewer overflows (CSOs) contained total PFAS concentrations up to 320&thinsp;ng/L (mean: 33.2&thinsp;ng/L), with post-TOP assay analysis indicating significant ...

Per- and polyfluoroalkyl substances (PFAS) are chemicals of emerging concern that potentially pose risks to human and environmental health. In May&ndash;Oct 2018, sediment and passively collected surface water samples were collected from 62 tributary sites of the Laurentian Great...

Increased awareness of pervasive per- and polyfluoroalkyl substances (PFAS) contamination and the need for zero-pollution treatment solutions necessitate the scientific and engineering community to respond urgently and systematically. Existing approaches lack reproducible and sta...

Perfluorohexane sulfonate (PFHxS) is a legacy, long-chain per- and polyfluoroalkyl substance (PFAS) frequently detected in human serum and environmental media across the globe. Previously published developmental studies in rats indicated a general lack of effects in common endpoi...

Reports of environmental and human health impacts of per&iquest; and polyfluoroalkyl substances (PFAS) have greatly increased in the peer&iquest;reviewed literature. The goals of the present review are to assess the state of the science regarding toxicological effects of PFAS and...

This study explores an innovative remediation strategy for PFAS-contaminated soils using protein-based materials as chemical stabilization sorbents, alongside cement-based solidification. Due to the higher cost associated with traditional PFAS sorbents, the study evaluates lower-...

Poly- and perfluoroalkyl substances (PFAS) have been detected in water sources worldwide, raising significant public health concerns due to their potential toxicity to humans. This review examines covalent organic frameworks (COFs), crystalline and stable porous organic polymers ...

Per- and polyfluoroalkyl substances (PFAS) threaten society and global health because they do not degrade naturally in the environment. Their recalcitrance to traditional organic chemical activation requires alternative strategies. Hydrated electron (eaq&ndash;) &nbsp;activates t...

The Lab Enterprise Showcase session on PFAS was presented to an internal audience in June, 2025. These slides comprise the session overview, highlights of ORD research that aligns with agency PFAS actions announced in the April 2025 press release, and a high level overview of tec...

This peer-reviewed journal article will include the results of experiments performed at U.S. EPA and Markes International, Inc to develop a thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) analysis for the 30 volatile fluorinated compounds (VFCs) in other test m...

An understanding of transport and fate properties of a chemical or class of chemicals can help site practitioners to better determine contaminant behavior in the environment. The intention of this report is to provide easily digestible information for site assessment and remediat...

Invited presentation providing an overview of EPA actions related to PFAS of interest to the fire service. Firefighting Foams: Fire Service Roadmap. Material taken from EPA internet sites and other publicly available documents. &nbsp;

The study evaluated the impact of key source water characteristics, including co-existing per- and polyfluoroalkyl substances (PFAS), pH, ionic strength, inorganic divalent ions (Ca2+ and SO42-), and natural organic matter (NOM), on adsorption of nine PFAS by Filtrasorb 400 GAC (...

Supercritical Water Oxidation (SCWO) process for hazardous waste destruction uses the temperature and pressure of water above the critical point (374 oC, and 22.1 MPa) to degrade hazardous organic pollutants into CO2, water, sodium fluoride and other benign compounds. Using SCWO ...

This dataset summarizes the measurements made at during four sampling events at the Massachusetts Alternative Septic System Technology Center in 2021 and 2023.

This dataset summarizes the results of samples collected at six individual homes and two decentralized wastewater treatment systems. The influent and effluent from each of the treatment systems were sampled and analyzed for contaminants of emerging concern.&nbsp;

Per- and polyfluoroalkyl substances (PFAS) are a group of thousands of anthropogenic chemicals that are used in industrial and consumer products for their unique chemical properties. Toxicological data has shown that there are potential health hazards from exposure to certain PFA...

Perfluorohexane sulfonate (PFHxS) is an environmental pollutant that can be measured in the blood of infants and children worldwide. Several studies have linked PFHxS exposure to metabolic disorders like non-alcoholic fatty liver disease and increased body mass index in children....

Many aqueous film forming foam (AFFF) delivery systems in aircraft hangars and firefighting vehicles may require thorough cleaning to avoid ongoing environmental impacts from residual per- and polyfluoroalkyl substances (PFAS) within those systems. Though replacement AFFF formula...