Showing 4516-4530 of 4857
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Analysis of hexafluoropropylene oxide-dimer acid (HFPO-DA) by Liquid Chromatography-Mass Spectrometry (LC-MS): Review of Current Approaches and Environmental Levels
Science
16 Sep 2019 | Trends Analyt. Chem.
China and Denmark found to have higher levels of GenX in water sources.
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Waste incineration of Polytetrafluoroethylene (PTFE) to evaluate potential formation of per- and Poly-Fluorinated Alkyl Substances (PFAS) in flue gas
Science
16 Sep 2019 | Chemosphere
PTFE was found to not be a significant source of short-chain PFAS during incineration.
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Association between perfluoroalkyl substance exposure and thyroid hormone/thyroid antibody levels in maternal and cord blood: The Hokkaido Study
Science
16 Sep 2019 | Environ Int
Hormone function disrupted by the presence of PFAS in a cohort of 701 mother‑neonate pairs.
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Colorado ramps up response to toxic “forever chemicals” after discovery of hot spots across metro Denver
News
13 Sep 2019 | The Denver Post
Groundwater tests over the past year have detected high levels of toxic “forever chemicals” across the Denver metro area, contamination that’s both wider and more severe than previously known.
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Guest opinion: How to expedite PFAS contamination cleanup
News
13 Sep 2019 | The Intelligencer
If this national crisis isn’t important enough for the EPA to flex its muscle, what is? If it never exercises its authority, it’s as if it has none.
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EWG Investigates – The science on PFAS: Rebuttal to 3M’s claims
News
12 Sep 2019 | EWG
EWG’s Science Investigations Team's response to 3M downplaying the risks of PFAS.
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Concerns rise over tainted sewage sludge spread on croplands
News
12 Sep 2019 | Associated Press
Several states are examining sewage sludge for PFAS contamination and assessing potential dangers. Maine has enacted a nonbinding advisory level for PFAS in sludge and New Hampshire is working with the U.S. Geological Survey on a soil study whose results will help them set a standard. Maine also found most biosolids from more than 30 wastewater treatment plants were above the state's advisory level while neighboring New Hampshire detected PFAS in tests of sludge from two dozen permit holders. Neither state found traceable levels of PFAS in the milk tested. Based on sludge tests at 41 plants, Michigan ordered several to stop distributing it to farms.
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Companies deny responsibility for toxic ‘forever chemicals’ contamination
News
11 Sep 2019 | The Guardian
The 3M Company, the Chemours Company and DuPont appeared before lawmakers over PFAS. Denise Rutherford, senior vice-president of corporate affairs for 3M, argued the chemicals pose no human health threats at current levels and have no victims, conflicting with a large body of research and 3M’s own internal documents.
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Perfluoroalkyl acids (PFAAs) in children’s serum and contribution from PFAA contaminated drinking water
Science
10 Sep 2019 | ACS Pub.
Total nursing time was associated with PFAS levels in children up to 4 years old.
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Partition coefficients of four perfluoroalkyl acid alternatives between bovine serum albumin (BSA) and water in comparison to ten classical perfluoroalkyl acids
Science
10 Sep 2019 | Environ Sci Process Impacts
Short-chain and long-chain PFAS found to have the same bioaccumulation behavior in a model species.
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An investigation into per- and polyfluoroalkyl substances (PFAS) in nineteen Australian wastewater treatment plants (WWTPs)
Science
10 Sep 2019 | Heliyon
6:2 FTS and other PFAS were found to dominate Australian wastewater.
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[Recording] U.S. House Subcommittee Hearing: The Devil They Knew: PFAS Contamination and the Need for Corporate Accountability, Part III
Policy
10 Sep 2019
A recording and supporting documents from September 10, 2019 U.S. House Subcommittee on Environment hearing on PFAS.
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The short-chain perfluorinated compounds PFBS, PFHxS, PFBA and PFHxA, disrupt human mesenchymal stem cell self-renewal and adipogenic differentiation
Science
9 Sep 2019 | Joun. of Env. Sci.
Short-chain PFAS linked to developmental toxicity in human cell lines.
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‘Forever chemicals’ now found in Massachusetts schools
News
9 Sep 2019 | Boston Globe
The water fountains [at the schools in Stow] have been turned off. The state decided to test the water in Stow because of the schools’ proximity to the former Fort Devens-Sudbury Training Annex... wells at the Hale School had a cumulative total of more than 38 ppt of five of the chemicals; the Center School had more than 24 ppt.
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What toxicologist says parents should know about PFAS exposure
News
9 Sep 2019 | MLive
Jamie DeWitt, a pharmacology and toxicology professor at East Carolina University’s Brody School of Medicine, provides practical information relating to PFAS contamination.