Showing 226-240 of 303
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Per- and polyfluoroalkyl substances (PFASs) in Chinese drinking water: risk assessment and geographical distribution
Science
11 Jan 2021 | Environ. Sci. Eur.
The PFAS concentrations reported in more than 20% of the studied cities, likely affecting 98.5 million people, were above the maximum contaminant level issued by Vermont in 2019.
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Removal of per- and polyfluoroalkyl substances from aqueous media using synthesized silver nanocomposite-activated carbons
Science
7 Jan 2021 | J Environ Health Sci Eng
Silver-based compounds were effective for the removal of PFAS from aqueous media and are good alternatives to commercially available activated carbons.
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An evaluation of health-based federal and state PFOA drinking water guidelines in the United States
Science
5 Jan 2021 | Sci Total Environ
More rigorous efforts are warranted to establish consistent health-based drinking water guidelines for PFOA, given that drinking water is a primary source of human exposure to PFOA in the United States.
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Perfluorooctanesulfonic Acid Detection Using Molecularly Imprinted Polyaniline on a Paper Substrate
Science
4 Jan 2021 | Sensors (Basel)
A low-cost electrical paper sensor was developed to have excellent sensitivity and selectivity provides the potential for large-scale monitoring of wastewater.
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Much Still Unknown about PFAS Destruction and Disposal
Policy
1 Jan 2021
This guidance, published Dec. 18, 2020, highlights how much is still unknown about how to effectively remove these materials from the environment.
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3 PFAS disposal technologies are most promising, US EPA says
Policy
21 Dec 2020
Burning PFAS as hazardous waste to destroy the chemicals is one of the three technologies the EPA suggests in interim guidance issued Dec. 18.
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Photo enhanced degradation of polyfluoroalkyl and perfluoroalkyl substances
Science
16 Dec 2020 | Heliyon
High degradation and defluorination efficiency of PFAS could be achieved by photon driven processes such as photolysis, photochemical, photocatalysis, and photoreduction.
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Removal and formation of perfluoroalkyl substances in Canadian sludge treatment systems - A mass balance approach
Science
8 Dec 2020 | Sci Total Environ .
The contaminant mass balances revealed that there were significant changes in mass flows of the target PFAS through all kinds of sludge treatment systems.
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The high persistence of PFAS is sufficient for their management as a chemical class
Science
1 Dec 2020 | Environ Sci Process Impacts
We argue that this high persistence is sufficient concern for their management as a chemical class, and for all "non-essential" uses of PFAS to be phased out.
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German Federal Agency's International Conference: PFAS - Dealing with contaminants of emerging concern
Events
30 Nov 2020
The German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety and the German Environment Agency will be hosting a two-day international conference focusing on strategies on how to deal with PFAS-contaminated soil and groundwater.
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Governor Cuomo Signs Legislation Banning Incineration of Firefighting Foam Containing PFAs in Certain New York Cities
Policy
24 Nov 2020
Governor Cuomo today signed legislation banning the incineration of AFFF containing PFAS, the emerging contaminants known as PFAS, in certain cities.
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PFAS Thermal Destruction at Wastewater Treatment Facilities: A State of the Science Review
Science
24 Nov 2020 | Water
This review covers available research on the fate of PFAS through incineration systems with a focus on sewage sludge incinerators.
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From Waste Collection Vehicles to Landfills: Indication of Per- and Polyfluoroalkyl Substance (PFAS) Transformation
Science
3 Nov 2020 | ES&T L
Leachate from waste collection vehicles was tested and found to contain PFAS precursors suggesting precursor transformation to PFAAs during the course of landfill disposal.
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Remediation of poly- and perfluoroalkyl substances (PFAS) contaminated soils - To mobilize or to immobilize or to degrade?
Science
3 Nov 2020 | J Hazard Mater
In this review, remediation of PFAS contaminated soils through manipulation of their bioavailability and destruction is presented.
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Microbial Cleavage of C-F Bonds in Two C Per- and Polyfluorinated Compounds via Reductive Defluorination
Science
3 Nov 2020 | Environ Sci Technol
Microbes were found to be able to successfully degrade PFAS under common anaerobic conditions.