Results 61 to 70 of about 12,995 (241)

Automated Ground-Water Sampling and Analysis of Hexavalent Chromium using a “Universal” Sampling/Analytical System

open access: yesSensors, 2005
The capabilities of a “universal platform” for the deployment of analyticalsensors in the field for long-term monitoring of environmental contaminants were expandedin this investigation.
Richard J. Venedam   +3 more
doaj   +1 more source

Acetylene Fuels TCE Reductive Dechlorination by Defined Dehalococcoides/Pelobacter Consortia. [PDF]

open access: yes, 2017
Acetylene (C2H2) can be generated in contaminated groundwater sites as a consequence of chemical degradation of trichloroethene (TCE) by in situ minerals, and C2H2 is known to inhibit bacterial dechlorination. In this study, we show that while high C2H2 (
Alvarez-Cohen, Lisa   +6 more
core   +2 more sources

Enhancing the Nrf2 antioxidant signaling provides protection against trichloroethene-mediated inflammation and autoimmune response.

open access: yesToxicological Sciences, 2020
Trichloroethene (trichloroethylene, TCE) and one of its reactive metabolites dichloroacetyle chloride (DCAC) are associated with the induction of autoimmunity in MRL+/+ mice. Although oxidative stress plays a major role in TCE-/DCAC-mediated autoimmunity,
N. Banerjee   +3 more
semanticscholar   +1 more source

Effects of Arsenic on Trichloroethene-Dechlorination Activities of Dehalococcoides mccartyi 195.

open access: yesEnvironmental Science and Technology, 2020
Arsenic and trichloroethene (TCE) are among the most prevalent groundwater contaminants in the United States. Co-contamination of these two compounds has been detected at 63% of current TCE-contaminated National Priorities List sites.
Sara Gushgari-Doyle, L. Alvarez-Cohen
semanticscholar   +1 more source

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

open access: yesRemediation 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   +9 more
wiley   +1 more source

Isotope Techniques in Chemical Wastewater Treatment: Opportunities and Uncertainties

open access: yesAngewandte Chemie, Volume 137, Issue 19, May 5, 2025.
In this review, we would first introduce basic knowledge about isotopic compounds and then scrutinize the physical and chemical influence induced by isotope changes. Special attention will be paid to the uncertainties in explaining the isotope results.
Hongyu Zhou   +7 more
wiley   +2 more sources

The application of the phytoscreening method for determination of chlorinated compounds in tropical area - Brazil – SP

open access: yesRevista Águas Subterrâneas, 2017
In this work we investigated the applicability and effectiveness of phytoscreening method in research and determination of contamination plumes in a impacted area by chlorinated hydrocarbons in a tropical environment.
Daniela Ferraz   +3 more
doaj   +1 more source

Scenario‐Specific Attenuation Factors for Vapor Intrusion Screening

open access: yesGroundwater 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   +3 more
wiley   +1 more source

Long-term decrease in the global atmospheric burden of tetrachloroethene (C2Cl4) [PDF]

open access: yes, 2004
We present a 14-year record of tropospheric tetrachloroethene (C2Cl4) mixing ratios measured each season at remote surface locations throughout the Pacific Basin (71°N-47°S .
Blake, DR   +4 more
core  

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

open access: yesGroundwater 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   +3 more
wiley   +1 more source

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