Showing 16-30 of 106
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Evaluation of per- and polyfluoroalkyl substances (PFAS) in landfill liquids from Pennsylvania, Colorado, and Wisconsin
Science
19 Mar 2024 | Chemosphere
Average PFAS levels in landfills from Pennsylvania, Colorado, and Wisconsin were 6,900, 22,000, 280, and 260 ppt in leachate, gas condensate, stormwater, and groundwater, respectively, with variations attributed to landfill design and local climate and higher PFAS levels in leachate exposed to open air and in groundwater near landfills without bottom liners.
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PFAS is piling up in our trash. Can we keep it contained?
News
5 Mar 2024 | Star Tribune
SKB is experimenting with filtering PFAS chemicals out of that liquid. The leachate is pumped inside the trailer, where it travels through several tanks that repeatedly froth it up.
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Evaluation of per- and polyfluoroalkyl substances (PFAS) released from two Florida landfills based on mass balance analyses
Science
21 Jan 2024 | Waste Manag
The PFAS mass flux leached from disposed solid waste was found to be approximately 1-3% of the total amount, with the majority captured by leachate collection systems. These results may help prioritize waste management strategies and PFAS treatments over an estimated release period of at least 40 years.
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Comparison of the PFAS and physical-chemical parameter fluctuations between an ash landfill and a MSW landfill
Science
22 Dec 2023 | Waste Manag
PFAS levels in municipal solid waste and incinerator ash landfillswere found to be higher in solid waste leachate, suggesting the importance of considering these differences when designing leachate management systems for different landfill types.
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Uhlmann Confirms EPA Will Not Pursue PFAS Enforcement Actions against Farmers, Public Airports, and Municipal Wastewater Facilities
News
16 Oct 2023 | The National Law Review
The U.S. EPA will not pursue PFAS enforcement actions against farmers who used biosolids, public airports that used aqueous film forming foam for fire suppression, or municipal wastewater facilities so long as they were acting in good faith.
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A critical review of perfluoroalkyl and polyfluoroalkyl substances (PFAS) landfill disposal in the United States
Science
25 Sep 2023 | Sci. Total Environ.
Annually, an estimated 7.5 metric tons of PFAS enter municipal solid waste landfills, with the majority staying in the solid waste and 16% leaving through leachate and landfill gas.
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Buffalo Sewer Authority moves to remove forever chemicals from landfill leachate through firm's new tech
News
20 Sep 2023 | Buffalo News
The largest landfill in New York State for years has been trucking up to 150,000 gallons of leachate per day to Buffalo for treatment at the city's Bird Island wastewater plant, where toxic levels of chemicals such as ammonia and nitrogen are removed before the water gets piped into the Niagara River.
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Comparative study of Per-and Polyfluoroalkyl substances (PFAS) removal from landfill leachate
Science
31 Aug 2023 | Chemosphere
Foam fractionation and anion exchange resin treatment were the most cost-effective methods for removing >90% of PFOA and PFOS, while nanofiltration was the only method practical for short-chain PFAS removal.
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New study finds harmful forever chemicals in seemingly ‘green’ products: ‘I would not consider that biodegradable’
News
29 Jul 2023 | Yahoo News
But a recent study revealed that these biodegradable alternatives might not be as environmentally friendly as they appear.
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Diffusion and partitioning of different PFAS compounds through thermoplastic polyurethane and three different PVC-EIA liners
Science
26 May 2023 | Sci Total Environ
PFAS was found to diffuse through certain membranes used in landfills, potentially leading to groundwater contamination.
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A review of the occurrence, transformation, and removal technologies for the remediation of per- and polyfluoroalkyl substances (PFAS) from landfill leachate
Science
8 May 2023 | Chemosphere
This paper critically reviews various treatment techniques for PFAS removal in landfill leachates and provides guidance for promoting environmental protection and sustainable development of PFAS remediation in landfill leachate.
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Per-and Polyfluoroalkyl Substances (PFAS) Distribution in Landfill Gas Collection Systems: Leachate and Gas Condensate Partitioning
Science
31 Jan 2023 | J. Haz. Mat.
PFAS identities and concentrations were compared in landfill gas condensate and leachate within gas wells, including more semi-volatile PFAS rarely measured in water matrices.
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Presumptive Contamination: A New Approach to PFAS Contamination Based on Likely Sources
Science
12 Oct 2022 | ES&T
A contamination model was used to create a map of presumptive PFAS contamination sites in the United States, identifying more than 57,000 sites including industrial facilities, wastewater treatment plants, current or former military sites, and airports.
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Per-and polyfluoroalkyl substances in the atmosphere of waste management infrastructures: Uncovering secondary fluorotelomer alcohols, particle size distribution, and human inhalation exposure
Science
29 Jul 2022 | Environ. Int.
PFAS were prevalent in the air and in particulate matter near landfills and wastewater treatment plants, and modeling demonstrated that fine and ultrafine particles may carry PFAS into the lung alveoli.
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Federal PFAS Report Card
Policy
13 Jun 2022
EWG has researched actions the federal government is committed to taking, or for which it faces congressionally mandated deadlines, to tackle the “forever chemicals” known as PFAS.