Showing 1006-1020 of 1347
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Response to “Comment on Scientific Basis for Managing PFAS as a Chemical Class
Science
1 Feb 2021 | Environ. Sci. Technol
Here we are responding to the comment by Singh and Papanastasiou who disagree with a class-based approach to PFAS and build their argument around hydrochlorofluorocarbons.
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Biden administration looks set to target ‘forever chemicals,’ as 3M warns about ‘onerous regulation’
News
26 Jan 2021 | Market Watch
President Joe Biden’s administration looks poised to crack down on a group of “forever chemicals” that have been linked to a range of health problems, a move that could put companies like 3M and DuPont on the hook for billions of dollars in cleanup costs.
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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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Degradation and effect of 6:2 fluorotelomer alcohol in aerobic composting of sludge
Science
26 Jan 2021 | Biodegradation
6:2 FTOH was found to decrease the microbial richness and diversity of sludge compost.
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Integrative Computational Approaches to Inform Relative Bioaccumulation Potential of per- and Polyfluoroalkyl Substances (PFAS) across Species
Science
26 Jan 2021 | Toxicol Sci
Models were used to predict cross-species differences in binding affinity of PFAS which can cause fatty liver disease.
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Occurrence and toxicity of perfluoroalkyl acids along the estuarine and coastal regions under varied environmental factors
Science
26 Jan 2021 | Sci Total Environ
The main variables that appear to intervene in estuarine and coastal regions are mainly the proximity to the source of pollution, salinity, pH, precipitation (rain) as well as types of PFAAs.
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Exposure to perfluorooctanesulfonate (PFOS) but not perflurorooctanoic acid (PFOA) at ppb concentration induces chronic toxicity in Daphnia carinata
Science
26 Jan 2021 | Sci Total Environ
The results of this study have great implications for risk assessment of PFOS and PFOA in aquatic ecosystems, given the potential of PFOS to pose a risk to Daphnia even at lower concentrations (1 μg L).
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Federal Government Human Health PFAS Research Workshop
Science
25 Jan 2021 | NAS
Proceedings of a workshop help by various federal agencies over the federal context for PFAS research, human exposure, experimental toxicology, human health outcomes, and cross-cutting issues in PFAS risk assessment.
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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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Organic contaminants of emerging concern in leachate of historic municipal landfills
Science
19 Jan 2021 | Env. Poll.
PFAS are present in 60-year-old landfill at levels comparable to the present day.
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Relative Acute Toxicity of Three Per- and Polyfluoroalkyl Substances on Nine Species of Larval Amphibians
Science
19 Jan 2021 | Integr Environ Assess Manag
Our study is one of the first to report species-, developmental stage-, and compound-specific differences in sensitivity to PFAS across a wide range of amphibian species.
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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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Atmospheric particulate represents a source of C8–C12 perfluoroalkyl carboxylates and 10:2 fluorotelomer alcohol in tree bark
Science
18 Jan 2021 | Environ. Poll.
Overall, this study provides the first evidence that atmospheric particulate is an obvious source of C8–C12 PFCAs and 10:2 FTOH in tree bark.
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Fish consumption advisory issued for Lake Superior smelt for first time
News
18 Jan 2021 | Duluth News Tribune
The DNR is recommending people eat no more than one meal per month of smelt because of the high levels of PFAS. This is the first PFAS-based fish consumption advisory for the Great Lakes.