Showing 991-1005 of 1266
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Structure Database and In Silico Spectral Library for Comprehensive Suspect Screening of Per- and Polyfluoroalkyl Substances (PFASs) in Environmental Media by High-resolution Mass Spectrometry
Science
2 Feb 2021 | Anal Chem
Researchers generated a predicted tandem mass spectral library using computational mass spectrometry tools for identifying PFASs in HRMS-enabled suspect- and nontarget screening studies.
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Aquatic toxicity evaluations of PFOS and PFOA for five standard marine endpoints
Science
2 Feb 2021 | Chemosphere
In addition to providing effects data for PFOA and PFOS, this study indicates these species and endpoints are sensitive to PFAS such that their use will be appropriate for deriving toxicity data with other PFAS in marine ecosystems.
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Comparison of currently available PFAS remediation technologies in water: A review
Science
28 Jan 2021 | J Environ Manage
In this review, extra consideration is given to novel advanced techniques for PFAS including short chain PFAS removal, and compare their efficiencies, effectiveness, energy use, sustainability, cost, and simplicity in laboratory scale to field applications.
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Firefighters Battle an Unseen Hazard: Their Gear Could Be Toxic
News
26 Jan 2021 | The New York Times
“We’re exposed to these chemicals every day,” Captain Mitchell said. “And the more I looked into it, the more it felt like the only people who were saying these chemicals were safe were the people who make it.”
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EPA Delivers Results on PFAS Action Plan
Policy
26 Jan 2021
The U.S. EPA announced a suite of actions from across the agency that will continue the significant progress the agency has made to implement the PFAS Action Plan—the most comprehensive cross-agency plan ever to address an emerging chemical of concern.
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Human Biomonitoring (HBM)-II values for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) - description, derivation and discussion
Science
26 Jan 2021 | Regul Toxicol Pharmacol
The concentration of PFAS in the German population may lead to health impairment, compared to lower levels years earlier.
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Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000-2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales
Science
20 Jan 2021 | Environ Sci Technol
Short-chain PFAS were found in beluga whales which indicates that the continuous emissions of unregulated PFAS into the environment.
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Predicting the risk of GenX contamination in private well water using a machine-learned Bayesian network model
Science
19 Jan 2021 | J. of Haz. Mat.
Modeling predicts that atmospheric deposition rate is the most important factor influencing risk.
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Health and social concerns about living in three communities affected by per- and polyfluoroalkyl substances (PFAS): A qualitative study in Australia
Science
19 Jan 2021 | PLoS One
We describe residents' perceptions and experiences of PFAS in three regional Australian towns where exposure has occurred.
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Chronic exposure to PFO4DA and PFO5DoDA, two perfluoroalkyl ether carboxylic acids (PFECAs), suppresses hepatic stress signals and disturbs glucose and lipid metabolism in male mice
Science
19 Jan 2021 | J Hazard Mater
Chronic PFO4DA and PFO5DoDA exposure lead to endocrine disruption and basic metabolism.
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Human Biomonitoring (HBM)-I values for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) - description, derivation and discussion
Science
19 Jan 2021 | Regul Toxicol Pharmacol
Evidence for associations between PFOA- and PFOS-exposure was found for a wide range of health outcomes depending on total body burden.
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Notice of Availability for Public Comment: Interim PFAS Destruction and Disposal Guidance
Policy
12 Jan 2021
The EPA is requesting public comment on its recently published Interim PFAS Destruction and Disposal Guidance.
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Effectiveness of household water purifiers in removing perfluoroalkyl substances from drinking water
Science
12 Jan 2021 | Environ Sci Pollut Res Int
Household water purifiers are effective in decreasing the exposure to PFAS through drinking water, with higher efficiency in longer-chains.
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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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Per- and polyfluoroalkyl substances and their alternatives in black-tailed gull (Larus crassirostris) eggs from South Korea islands during 2012-2018
Science
6 Jan 2021 | J Hazard Mater
Significant increasing temporal trends were observed for PFOS, PFNA, and F-53B suggesting continuous use or accumulation of these in the Korean environment.