Showing 4156-4170 of 4702
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Altered expression and activity of phase I and II biotransformation enzymes in human liver cells by perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS)
Science
10 Dec 2019 | Toxicology
PFOA and PFOS found to inhibit the body's ability to breakdown and absorb nutrients.
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Trump administration, GOP strip out PFAS standard, cleanup requirements from defense bill
News
10 Dec 2019 | Detroit Free Press
“While it’s good news that the Defense Department will finally phase out PFAS in firefighting foam and food packaging, communities desperately need Congress to tackle industrial PFAS releases into the air and water and to require DOD to clean up legacy PFAS pollution," said Scott Faber, an official with the Environmental Working Group.
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Indoor exposure to per- and polyfluoroalkyl substances (PFAS) in the childcare environment
Science
10 Dec 2019 | Environ. Poll.
Dust samples were found to contain high concentrations of neutral FTOHs while sleeping mats contained FOSAs and FOSEs.
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Trump administration, GOP strip out PFAS standard, cleanup requirements from defense bill
Policy
10 Dec 2019
U.S. Sen. Gary Peters, D-MI acknowledged some key provisions were taken out, including requiring that a standard be set by the U.S. Environmental Protection Administration that would require intervention when it was exceeded. However, the legislation still contains key provisions to help reduce PFAS contamination, especially as it relates to military uses.
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Topic of Cancer: How PFAS threaten our water
News
10 Dec 2019 | Capital & Main
What’s more, while the persistent and mobile nature of PFAS chemicals means that no neighborhood is safe from contamination, smaller water systems—particularly those serving disadvantaged communities—face an uphill task in tackling the problem due to the higher probability of aging infrastructure and limited resources, as compared to larger utilities.
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Defense bill boosts climate resilience, ends PFAS foam use (2)
News
10 Dec 2019 | Bloomberg Environment
“The provisions for nationwide water testing and phasing out PFAS in military firefighting foam are a major milestone in the fight against PFAS,” Tom Bruton, a senior scientist at the Green Science Policy Institute, said in a statement. “Just a few years ago achieving these critical protections, especially the foam phaseout, seemed impossible.”
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Bioaccumulation and human exposure of perfluoroalkyl acids (PFAAs) in vegetables from the largest vegetable production base of China
Science
10 Dec 2019 | Environ Int
PFAS found to bioaccumulate in vegetables leading to increased amounts in preschool-aged children.
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Insights into the Uptake, Translocation and Transformation Mechanisms of Perfluorophosphinates and Perfluorophosphonates in Wheat (Triticum aestivum L.)
Science
10 Dec 2019 | Environ. Sci. Technol.
Exposure to PFPiAs in roots caused increased accumulation of more persistent PFPAs in the stalk and leaves of wheat.
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Characterization of the chemical contents of fluorinated and fluorine-free firefighting foams using a novel workflow combining non-target screening and total fluorine analysis
Science
10 Dec 2019 | Environ. Sci. Technol.
Firefighting foams marketed as PFAS-Free was found not to contain fluorine.
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Exposure of adult mice to perfluorobutanesulfonate impacts ovarian functions through hypothyroxinemia leading to down-regulation of Akt-mTOR signaling
Science
10 Dec 2019 | Chemosphere
PFBS found to be associated with decreased production of ovarian hormones and fertility.
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Subacute dermal toxicity of perfluoroalkyl carboxylic acids: comparison with different carbon-chain lengths in human skin equivalents and systemic effects of perfluoroheptanoic acid in Sprague Dawley rats
Science
10 Dec 2019 | Arch. Toxicol.
PFCA found to have adverse effects on major organs with systemic dermal exposure in high concentrations.
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Environmental group laments PFAS provisions missing from federal bill
News
9 Dec 2019 | WAMC
The annual federal defense bill, known as the National Defense Authorization Act, does not include certain provisions that would address PFAS water contamination. A Washington-based nonprofit group accuses Congress of caving on cleaning up the toxic substances.
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Possible Fluorinated Alternatives of PFOS and PFOA: Ready to Go?
Science
9 Dec 2019 | Environ Sci Technol.
A scientific opinion piece regarding the analytical techniques, health concerns, and regulatory challenges regarding fluorinated short-chain alternatives as markets move away from long-chain PFAS.
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High trans-placental transfer of perfluoroalkyl substances alternatives in the matched maternal-cord blood serum: Evidence from a birth cohort study
Science
9 Dec 2019 | Sci. of the Tot. Env.
Short-chain PFAS found to cross the placental barrier at higher rates than long-chain PFAS.
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Temporal Trends in Per- and Polyfluoroalkyl Substances in Bottlenose Dolphins (Tursiops truncatus) of Indian River Lagoon, Florida and Charleston, South Carolina
Science
9 Dec 2019 | Environ Sci Technol.
Regulation and phaseout of specific PFAS linked to the decreasing levels of certain PFAS and rising levels of others in bottlenose dolphins.