Showing 4366-4380 of 4702
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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.
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Derivation of a chronic reference dose for perfluorohexane sulfonate (PFHxS) for reproductive toxicity in mice
Science
9 Sep 2019 | Regul. Toxicol. Pharmacol.
The total daily safe intake amount of PFHxS found to be 4.0 ng/kg in humans.
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Assessing the contribution of atmospheric transport and tourism activities to the occurrence of perfluoroalkyl acids (PFAAs) in an Alpine Nature Reserve
Science
9 Sep 2019 | Sci. Total Environ.
Ski tourism is a significant source of PFAS contamination in a remote alpine lake in China
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Rapid removal of poly- and perfluorinated compounds from investigation- derived waste (IDW) in a pilot-scale plasma reactor
Science
9 Sep 2019 | Environ. Sci. Technol.
PFAS were removed with up to 99% efficiency in well water.
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Estimating the relative magnitudes of adsorption to solid-water and air/oil-water interfaces for per- and poly-fluoroalkyl substances
Science
9 Sep 2019 | Environ. Pollut.
The ability of PFAS to move throughout the environment was investigated.
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Lawmakers push for state limit on PFAS in Delaware drinking water
News
6 Sep 2019 | Delaware Public Media
Leaders of the State Senate Environmental and Natural Resources Committee and House Natural Resources Committee sent a letter 1 to Gov. John Carney asking him to direct the Delaware Department of Natural Resources and Environmental Control and the Department of Health and Social Services to develop MCL rulemakings for PFAS in public drinking water.