Showing 91-105 of 1105
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A Review of Sample Collection and Analytical Methods for Detecting Per- and Polyfluoroalkyl Substances in Indoor and Outdoor Air
Science
26 Apr 2024 | Chemosphere
This review of two decades of research on PFAS in outdoor and indoor air highlights the persistent presence of various PFAS, including those such as fluorotelomer alcohols and perfluorinated carboxylic acids and thousands more estimated, indicating ongoing environmental contamination despite regulatory measures, underscoring the need for improved air sampling techniques to comprehensively assess PFAS atmospheric distribution.
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E.P.A. Will Make Polluters Pay to Clean Up Two ‘Forever Chemicals’
News
19 Apr 2024 | The New York Times
The step follows an extraordinary move that requires utilities to reduce the levels of carcinogenic PFAS compounds in drinking water to near-zero.
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Superfund Designations Could Fuel PFAS Litigation
News
19 Apr 2024 | U.S. News
EPA officials have said that the agency will prioritize enforcement against PFAS manufacturers.
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Relationship between crustacean consumption and serum perfluoroalkyl substances (PFAS): the Korean National Environmental Health Survey (KoNEHS) cycle 4
Science
19 Apr 2024 | Ann Occup Environ Med
Frequent consumption of crustaceans is linked to higher concentrations of PFAS such as PFOS, PFNA, and PFDeA in the blood of the general Korean population.
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Association of Combined Per-and Polyfluoroalkyl Substances and Metals with Chronic Kidney Disease
Science
11 Apr 2024 | IJERPH
Exposure to PFAS and metals like cadmium and mercury is associated with chronic kidney disease, with cadmium showing a consistent link and mercury having a significant but complex relationship, emphasizing the need for targeted public health interventions.
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Final PFAS National Primary Drinking Water Regulation
Policy
10 Apr 2024
On April 10, 2024, EPA announced the final National Primary Drinking Water Regulation (NPDWR) for six PFAS.
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Life in the PFAS lane: The impact of perfluoroalkyl substances on photosynthesis, cellular exudates, nutrient cycling, and composition of a marine microbial community
Science
26 Mar 2024 | Sci Total Environ
This study investigated the effects of PFAS on microbial communities in the northwestern Gulf of Mexico, revealing that PFOS but not 6:2 FTS induced significant phototoxicity and shifts in community structure, highlighting the importance of understanding PFAS impacts on microbial ecosystems.
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Exposure to polystyrene microplastics and perfluorooctane sulfonate disrupt the homeostasis of intact planarians and the growth of regenerating planarians
Science
12 Mar 2024 | Sci Total Environ
Both microplastics and PFOS can cause DNA damage and disrupt the nervous system in freshwater planarians, and their combined exposure can exacerbate these effects, shedding light on potential environmental and health risks associated with microplastics and PFAS.
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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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Dynamic spatiotemporal changes of per- and polyfluoroalkyl substances (PFAS) in soil and eggs from private gardens at different distances from a fluorochemical plant
Science
27 Feb 2024 | Environ Pollut
The study conducted near a fluorochemical plant in Antwerp, Belgium, revealed higher concentrations of short-chain PFAS and their precursors in vegetable garden soil, elevated levels of long-chain PFAS in chicken enclosure soil and homegrown eggs, and temporal variations such as a 9x decrease in PFOS concentrations in soil and a 13x drop in concentrations in eggs, emphasizing the presence of localized high-concentration plumes near the plant and the necessity for ongoing monitoring and regulatory intervention.
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Integrated Analysis of Per-and Polyfluoroalkyl Substance Exposure and Metabolic Profiling of Elderly Residents Living near Industrial Plants
Science
26 Feb 2024 | Environ. Sci. Technol.
Significant associations between PFAS exposure levels and metabolic profiles were identified among those residing near industrial plants, particularly within lipid metabolism pathways, shedding light on potential adverse health effects and emphasizing the importance of understanding and mitigating these risks.
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Changes in Concentrations of Polyfluoroalkyl Substances in Human Milk Over Lactation Time and Effects of Maternal Exposure via Analysis of Matched Samples
Science
23 Feb 2024 | Environ. Sci. Technol.
Breast milk samples from 76 women post-delivery found certain PFAS compounds, particularly PFOA, PFOS, and N-MeFOSAA, with N-MeFOSAA being the highest in human milk at 3 months, suggesting an increase in PFAS concentrations in milk samples over time.
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PFAS River Export Analysis Highlights the Urgent Need for Catchment-Scale Mass Loading Data
Science
19 Feb 2024 | ES&T Letters
A study of a European river system found that wastewater treatment works contribute significantly to the total PFAS levels exported from the river, but that additional PFAS sources must also be eliminated in order to meet water quality improvement goals.
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Reproductive toxicity of PFOA, PFOS and their substitutes: A review based on epidemiological and toxicological evidence
Science
17 Feb 2024 | Environ Res
PFAS are widely recognized for their reproductive toxicity, with substitutes proving equally or more harmful; this review covers potential reproductive toxicity mechanisms for PFAS in both males and females.
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Occurrence, bioaccumulation and trophic dynamics of per- and polyfluoroalkyl substances in two tropical freshwater lakes
Science
14 Feb 2024 | Environ Pollut
PFAS were measured in different fish species in two lakes in Nigeria, identifying the presence of novel PFAS, diSAMPAP and 9CL-PF3ONS, and documenting the role of urbanization on PFAS in the environment for the first time in Africa.