Showing 406-420 of 1733
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Personal Wearable Sampler for Per-and Polyfluoroalkyl Substances Exposure Assessment
Science
21 Mar 2024 | ES&T L
Assessing individual PFAS exposure has been limited due to sampling tool constraints, so researchers employed a new personal air wearable sampler which was found to effectively capture diverse PFAS, offering a potential methodology for quantitative inhalation exposure assessment.
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Retention of per-and polyfluoroalkyl substances by syringe filters
Science
19 Mar 2024 | Environ. Chem. Lett.
Researchers found that all tested filters commonly used in water analysis retained PFAS, with glass-fiber cellulose acetate filters showing the lowest retention, and discussed factors influencing PFAS retention as well as alternative pretreatment methods.
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Per- and Polyfluoroalkyl Substances in Food Packaging: Migration, Toxicity, and Management Strategies
Science
19 Mar 2024 | Environ Sci Technol
This study systematically maps evidence of PFAS in migrates and extracts of food contact materials, revealing the presence of 68 PFAS, predominantly perfluorocarboxylic acids and fluorotelomer-based compounds, highlighting the need for international regulations to limit PFAS as a group in food packaging for human and environmental safety.
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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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Novel Meta-Diamide Compounds Containing Sulfide Derivatives Were Designed and Synthesized as Potential Pesticides
Science
17 Mar 2024 | Molecules
C4 sulfonamido derivatives were the dominant PFAS compounds in semiconductor manufacturing wastewater, signaling a shift towards these alternatives and the importance of measuring more than just PFAAs.
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Per-and Polyfluoroalkyl Substance Exposure Risks in US Carceral Facilities
Science
15 Mar 2024 | AJPH
To evaluate the risk of exposure to PFAS among the US incarcerated population, this study analyzed the geographic proximity of carceral facilities to known or likely PFAS contamination sites, finding that 5% of facilities are located within the same watershed boundaries as PFAS contamination sources, with implications for health inequities and the need for environmental monitoring in prisons.
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Bioaccumulation of Perfluoroalkyl Sulfonamides (FASA)
Science
14 Mar 2024 | Sci Technol Lett.
This study reports high FASA concentrations in fish sampled next to aqueous film-forming foams contaminated sites. Preliminary findings on toxicity suggest an urgent need for FASA to be considered by fish advisory programs.
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This farmer’s livelihood was ruined by PFAS-contaminated fertilizer that few Midwest states test for
News
12 Mar 2024 | IPM News
Two years ago, he was blindsided when the state of Michigan ordered him to shut down his farm, citing high levels of PFAS — or what are often referred to as toxic “forever chemicals” — in both his beef and soil.
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Environmental impact of PFAS: Filling data gaps using theoretical quantum chemistry and QSPR modeling
Science
9 Mar 2024 | Environ. Int.
Utilizing physics-based methods and data-driven models, researchers predicted environmental parameters to address gaps in understanding such as the bioaccumulation potential, contributing to a better understanding of PFAS behavior in the environment.
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Maine lawmakers weigh changes to groundbreaking PFAS law
News
7 Mar 2024 | News Center Maine
However, under an amendment proposed by the Department of Environmental Protection, several sectors of the economy could be exempt.
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PFAS well testing now underway. EPA is looking for another 150 homeowners to sign up
News
6 Mar 2024 | The Spokesman-Review
So far, 144 property owners with private wells have signed up for free testing from the EPA and Washington State Department of Ecology.
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State appeals court upholds ruling that DNR lacks broad authority to regulate PFAS
News
6 Mar 2024 | Wisconsin Public Radio
The 2-1 decision has dealt a blow to the agency's authority to clean up PFAS under Wisconsin's spills law.
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Biosolids, an important route for transporting poly-and perfluoroalkyl substances from wastewater treatment plants into the environment: A systematic review
Science
6 Mar 2024 | Sci. Total Environ.
This review examined the presence and behavior of PFAS in wastewater treatment plants, revealing variations in PFAS concentrations across plants, the role of biological mechanisms in PFAS transformation, and the influence of factors like carbon chain length and wastewater composition on PFAS adsorption in sludge, emphasizing the need for improved management strategies to address PFAS contamination in environmental systems.
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Kimberly-Clark factory where Kleenex made pollutes town with PFAS, lawsuit says
News
4 Mar 2024 | Reuters
Kimberly-Clark has been hit with a proposed class action filed by Connecticut residents living near a facility where it makes Kleenex accusing the consumer goods company of contaminating their properties and drinking water with toxic ‘forever chemicals.’
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Texas farmers claim company sold them PFAS-contaminated sludge that killed livestock
News
1 Mar 2024 | The Guardian
Two ranches also allege biosolids with ‘forever chemicals’ ruined crops, polluted drinking water and left their properties worthless.