Showing 1111-1125 of 1559
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Insufficient evidence for the existence of natural trifluoroacetic acid
Science
3 Jan 2022 | Environ. Sci.: Processes Impacts
The authors argue that there is not sufficient evidence that TFA occurs naturally, contrary to previous claims.
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US EPA turns down requests for more PFAS toxicity testing
Policy
30 Dec 2021
The US EPA has deferred or turned down advocacy groups’ requests to require Chemours to conduct toxicity tests on dozens of fluorochemicals found in North Carolina drinking water supplies.
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Sea Spray Aerosol (SSA) as a Source of Perfluoroalkyl Acids (PFAAs) to the Atmosphere: Field Evidence from Long-Term Air Monitoring
Science
21 Dec 2021 | Environ Sci Technol
Seaspray aerosols may be a source of PFAAs to the air, where they can undergo long-distance transportation.
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Immunotoxicity of PFOA to the Marine Bivalve Species Ruditapes philippinarum
Science
21 Dec 2021 | Environ Toxicol Chem
PFOA was found to be immunotoxic to saltwater clams, at different levels highlighting the potentially detrimental effects of PFAS contamination in marine ecosystems.
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Forever chemicals: FL Senate panel proposes to tackle PFAS contamination
Policy
20 Dec 2021
The proposed committee bill would create a 16-member task force by next fall to determine how to identify and clean up contamination with PFAS, used for decades in a variety of consumer products such as food packaging and cookware.
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Environmental pollutant exposure associated with altered early-life gut microbiome: Results from a birth cohort study
Science
20 Dec 2021 | Environ Res
Prenatal exposure to PFAS is associated with alterations to gut microbiome development in infants, with larger effects in breastfed and cesarean-section-born babies.
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Development and validation of an LC-MS/MS method for the quantitation of 30 legacy and emerging per- and polyfluoroalkyl substances (PFASs) in human plasma, including HFPO-DA, DONA, and cC6O4
Science
20 Dec 2021 | Anal Bioanal Chem
An assay was developed suitable for large-scale analyses of a wide range of legacy and emerging PFAS in human plasma.
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Extractable organofluorine analysis: A way to screen for elevated per- and polyfluoroalkyl substance contamination in humans?
Science
19 Dec 2021 | Environ Int
Extractable organofluorine analysis was found to be an accurate screening method for detecting high PFAS levels in human blood.
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PFAS ‘forever chemicals’ constantly cycle through ground, air and water, study finds
News
18 Dec 2021 | The Guardian
Seaspray aerosols may be a source of PFAAs to the air, where they can undergo long-distance transportation, traveling thousands of kilometers.
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PFAS ‘forever chemicals’ constantly cycle through ground, air and water, study finds
News
18 Dec 2021 | The Guardian
Toxic PFAS “forever chemicals” in the ocean are transported from seawater to air when waves hit the beach and that phenomenon represents a significant source of air pollution, a new study from Stockholm University has found.
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The use of in vitro methods in assessing human health risks associated with short-chain perfluoroalkyl and polyfluoroalkyl substances (PFAS)
Science
13 Dec 2021 | J Appl Toxicol
This review summarizes the PFAS toxicity data obtained using human cells in vitro, discusses the advantages and limitations of cell-based models, and provides thoughts on potential solutions to the challenges of these methods.
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Montmorillonite clay-based sorbents decrease the bioavailability of per- and polyfluoroalkyl substances (PFAS) from soil and their translocation to plants
Science
13 Dec 2021 | Environ Res
The addition of amended clay to soils was found to reduce the uptake of PFAS into edible crops by up to 74%.
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PFOA induces alteration in DNA methylation regulators and SARS-CoV-2 targets and in mouse lung tissues
Science
12 Dec 2021 | Toxicol Rep
PFOA was found to change gene expression in lungs, potentially increasing susceptibility to COVID-19.
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[Press Release] Chemical companies tout green credentials whilst developing hazardous chemicals behind closed doors
News
9 Dec 2021 | ChemSec
Chemical companies around the world are actively marketing their greener, more sustainable products, whilst holding back details on the mass production of hazardous chemicals, ChemSec’s ranking of chemical companies reveals today.
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Per- and Poly-fluoroalkyl Substances (PFAS) and Female Reproductive Outcomes: PFAS Elimination, Endocrine-Mediated Effects, and Disease
Science
30 Nov 2021 | Toxicology
A summary of the role of PFAS in female reproductive dysfunction and disease is presented with the major data gaps, highlighting the importance for further study of the action mechanisms of PFAS harm in women.