Showing 466-480 of 1663
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The Catch-22 of limiting our PFAS exposure
News
19 Feb 2024 | Maine Morning Star
Without comprehensive reporting of PFAS, we can’t begin to get a grip on this insidious contamination.
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PFAS: Can we adapt to live without?
News
19 Feb 2024 | Medical Press
"We lived for thousands of years without this stuff. Do we need it?" said Susan Richardson, a University of South Carolina scientist who has studied PFAS for decades.
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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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On the fluoropolymers and ultra-short PFAS topic: Aqueous Leaching of Ultrashort-Chain PFAS from (Fluoro)polymers: Targeted and Nontargeted Analysis
Science
19 Feb 2024 | ES&T Letters
All tested fluoropolymers, as well as non-fluorinated alternatives like PEEK, were found to leach C2-C4 PFCAs, likely related to their production such as processing aids, residuals, and inhibitors. This indicates that fluoropolymers and other plastics can emit short chain PFAS into the environment.
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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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Transport and health risk of legacy and emerging per-and polyfluoroalkyl substances in the water cycle in an urban area, China: Polyfluoroalkyl phosphate esters are of concern
Science
16 Feb 2024 | Sci Total Environ
PAPs are a harmful group of PFAS that cannot easily be removed by drinking water treatment, and were found to be transported via precipitation more than municipal wastewater discharge.
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Association between per- and polyfluoroalkyl substances exposure and thyroid function biomarkers among females attending a fertility clinic
Science
11 Feb 2024 | Environ Pollut
PFAS were linked to changes in thyroid function in pregnant women, with particularly noticeable effects in females seeking fertility treatment, suggesting thyroid disruption by these chemicals among this vulnerable group.
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Development of a method using QuEChERS and LC–MS/MS for analysis of per-and polyfluoroalkyl substances in rice matrix
Science
10 Feb 2024 | Food Chemistry
To ensure food safety, a method combining QuEChERS extraction and LC-MS/MS was developed to detect 35 PFAS in rice, finding that instant rice microwaved in its packaging had lower PFAS levels compared to instant rice boiled in its packaging.
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Associations of per- and polyfluoroalkyl substances with maternal metabolic and inflammatory biomarkers in early-to-mid-pregnancy
Science
10 Feb 2024 | Environ Res
Exposure to PFAS during early-to-mid pregnancy was associated with decreased insulin levels, increased HDL cholesterol, and alterations in inflammatory markers, suggesting potential metabolic and inflammatory disruptions that may impact maternal and fetal health.
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[Report] Guide to per-and polyfluoroalkyl substances (PFAS) sampling within Natural Resource Damage Assessment and Restoration
Science
8 Feb 2024 | USGS
This guide aims to provide fundamental concepts and considerations involved with environmental sampling for PFAS during site assessments.
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Consumption of teas, takeout, hot dogs could come with a side of ‘forever chemicals’
News
6 Feb 2024 | The Hill
Young adults whose diets are rich in unsweetened teas, processed meats and takeout foods could be increasing their exposure to “forever chemicals,” a new study has found.
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Perfluorooctanesulfonic acid (PFOS) disrupts cadherin-16 in the developing rat thyroid gland
Science
6 Feb 2024 | Curr Res Toxicol
PFOS exposure in rodents may disrupt thyroid hormone system development, potentially affecting growth and neurodevelopment, as evidenced by altered gene expression patterns in hormone levels and follicular integrity.
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Expanded Systematic Evidence Map for Hundreds of Per- and Polyfluoroalkyl Substances (PFAS) and Comprehensive PFAS Human Health Dashboard.
Science
6 Feb 2024 | Environ Health Perspect
This paper describes the development of a PFAS dashboard that provides researchers and regulators an overview of the current knowledge and data gaps on PFAS effects on human health.
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Techniques to Characterize PFAS Burden in Biological Samples: Recent Insights and Remaining Challenges
Science
5 Feb 2024 | Trends Environ. Anal. Chem.
Advancements in PFAS analysis reveal a significant portion of total organofluorine in biological samples remains unidentified, prompting efforts to develop additional analytical approaches such as advanced separation and semi-quantitation methods.
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[Discussion] Estimated scale of costs to remove PFAS from the environment at current emission rates.
Science
5 Feb 2024 | Sci Total Environ
The significant costs associated with removing and destroying PFAS at the same rate they are currently introduced into the environment – over 100 trillion USD – underscores the urgent need for substantial reductions in production and emissions to address environmental and health concerns effectively.