Results 41 to 50 of about 4,247 (177)

Exploration of PFAS Mass Discharge in Stormwater Versus Groundwater: Technical and Regulatory Considerations

Remediation Journal, Volume 36, Issue 1, Winter 2025.
ABSTRACT At potential source areas of per‐ and polyfluoroalkyl substances (PFAS), a current priority is to delineate and control the risk of exposure of groundwater aquifers to PFAS. However, with the combination of mobility and persistence of some PFAS, the stormwater migration pathway may also pose risks to potential receptors.
Charles J. Newell, Jeff D. Gamlin, Gregory J. Garvey, Hanadi S. Rifai, Genevieve O. Grundy, Mehak Gupta, Michael Wang, Nicholas W. Johnson, Hassan Javed, Matthew Q. Lentz   +9 more
wiley   +1 more source

Dual Element (C/Cl) Isotope Analysis Indicates Distinct Mechanisms of Reductive Dehalogenation of Chlorinated Ethenes and Dichloroethane in Dehalococcoides mccartyi Strain BTF08 With Defined Reductive Dehalogenase Inventories

Frontiers in Microbiology, 2020
Dehalococcoides mccartyi strain BTF08 has the unique property to couple complete dechlorination of tetrachloroethene and 1,2-dichloroethane to ethene with growth by using the halogenated compounds as terminal electron acceptor. The genome of strain BTF08
Steffi Franke, Katja Seidel, Lorenz Adrian, Lorenz Adrian, Ivonne Nijenhuis   +4 more
doaj   +1 more source

Scenario‐Specific Attenuation Factors for Vapor Intrusion Screening

Groundwater Monitoring &Remediation, Volume 45, Issue 4, Page 87-100, Fall 2025.
Abstract A comprehensive study was undertaken to derive attenuation factors (AFs) for vapor intrusion (VI) screening that are more applicable to variable site conditions than the generic default AF of 0.03 recommended by the United States Environmental Protection Agency (USEPA).
Matthew A. Lahvis, Robert A. Ettinger, Rafat Abbasi, Wayne R. Jones   +3 more
wiley   +1 more source

Environmental burdens in Šurany – groundwater pollution by chlorinated aliphatic hydrocarbons

Mineralia Slovaca
In the past, the town of Šurany was a local center of industrial production, which resulted in the existence of five environmental burdens. Industry was associated with the intensive use of hazardous substances.
Juraj Macek, Roman Tóth, Ľubomír Jurkovič   +2 more
doaj   +1 more source

Dataset for laboratory treatability experiment with activated carbon and bioamendments to enhance biodegradation of chlorinated ethenes

Data in Brief, 2021
This dataset describes the outcome of a laboratory trichloroethene (TCE) treatability experiment with liquid activated carbon and bioamendments. The treatability experiment included unamended microcosms, bioamended microcosms with a Dehalococcoides ...
Cecilie B. Ottosen, Melissa Skou, Emilie Sammali, Jeremy Zimmermann, Daniel Hunkeler, Poul L. Bjerg, Mette M. Broholm   +6 more
doaj   +1 more source

Quantification of Degradation Rate Constants in Aquifer Materials Using Carbon‐14 Chlorinated Ethenes

Groundwater Monitoring &Remediation, Volume 45, Issue 4, Page 101-112, Fall 2025.
Abstract Among the most challenging sites to remediate are those where the groundwater is contaminated with large, dilute plumes of tetrachloroethene (PCE), trichloroethene (TCE), cis‐1,2‐dichloroethene (cDCE), and vinyl chloride (VC). Monitored natural attenuation (MNA) may be a viable strategy, but relevant mechanisms such as abiotic degradation can ...
David L. Freedman, Anangelica Rivera‐Cruz, Olivia Dunn Groshans, John T. Wilson   +3 more
wiley   +1 more source

Simultaneous dissipation of trichloroethene and arsenic from co-contaminated groundwater by coupling biodechlorination and biodetoxification with assistance of biochar

Biochar, 2022
Highlights Biochar enhanced microbes’ metabolic activity by adsorbing TCE and intermediate products allowing them to be degraded on its surface. While biochar itself cannot remove As, it acted as carrier to remove As-laden microorganisms, achieving 70 ...
Hao Chen, Deping Li, Ondřej Mašek, Ying Zhai, Guoqiang Rong, Xiaoyun Xu, Xinde Cao, Ling Zhao   +7 more
doaj   +1 more source

Flüchtige organische Verbindungen (VOC) in Aussenluft. Messung und Dateninterpretation

CHIMIA, 1994
A method for the automated and inattended measurement of aromatic and halogenated compounds in ambient air has been developed and tested. The method is based on trapping ambient air on an adsorption tube followed by thermal desorption and ...
Robert Gehrig, Alex Herzog, Peter Hofer
doaj   +2 more sources

Integrative Lattice and Surface Engineering of Nanoscale Fe0 for Superior Dechlorination of Trichloroethene in Groundwater: Coordination in Reactivity, Selectivity, and Stability

Angewandte Chemie, Volume 137, Issue 27, July 1, 2025.
A lattice and surface engineering strategy was employed to synthesize a novel core‐shell nanomaterial for superior reductive dechlorination of trichloroethene. In this design, FeNi serves as the core and FeS as the shell. Core composition and shell properties interactively determine materials’ performance, and the optimal material exhibited 242.7‐fold ...
Feilong Gao, Guofang Xu, Mingyi Zhang, Honghong Lyu, Han Wu, Jingchun Tang, Xinhua Xu, Jianzhong He   +7 more
wiley   +1 more source

Permeable Reactive Barrier Treatment of 1,4‐Dioxane and PFOA Impacted Groundwater Using Powdered Activated Carbon (PAC) Activated Persulfate

Remediation Journal, Volume 35, Issue 4, Autumn 2025.
ABSTRACT Per‐ and polyfluoroalkyl substances (PFAS) and 1,4‐dioxane are emerging groundwater contaminants that persist in the environment, are challenging for in‐situ treatment methods, and have been detected in drinking water systems throughout the United States.
Katherine E. Manz, Fiona Dunn, Katelyn Anderson, Alexis Meservey, Mike Apfelbaum, Lucas Hellerich, J. Daniel Bryant, Kurt D. Pennell   +7 more
wiley   +1 more source