Showing 3916-3930 of 4123
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Alaska DEC rolls back PFAS chemicals to avoid remediation costs for polluters, violating state law
News
23 Jul 2019 | CoastAlaska
Gov. Mike Dunleavy’s administration directed DEC to change its regulations. It now screens for two PFAS compounds rather than five when determining whether water is safe to drink. By limiting its testing to two compounds, the DEC is no longer screening for PFHxS, one of the drivers for declaring a Yakutat drinking water source contaminated.
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Larval amphibians rapidly bioaccumulate poly- and perfluoroalkyl substances
Science
22 Jul 2019 | Ecotox. & Enviro. Safety.
Toxic frogs lead to bioaccumulation in predator species.
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Harnessing fluoroacetate dehalogenase for defluorination of fluorocarboxylic acids: in silico and in vitro approach
Science
22 Jul 2019 | Envionment International
The ability of enzymes to degrade PFAS was tested in bacteria in order to design an environmentally friendly remediation technique.
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Combined spatial and retrospective analysis of fluoroalkyl chemicals in fluvial sediments reveal changes in levels and patterns over the last 40 years
Science
22 Jul 2019 | Environmental Pollution
Change of PFCA pattern in soils likely reflects changes in production processes.
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Cationic polymer for selective removal of GenX and short-chain PFAS from surface waters and wastewaters at ng/L levels
Science
22 Jul 2019 | Water Research
Efficient removal of short and long-chain PFAS, including GenX was accomplished using a cationic polymer in surface and wastewaters, as a potential PFAS control technique.
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Federal PFAS hearing to focus on ‘widespread industrial contamination’
News
22 Jul 2019 | MLive
PFAS pollution across a 25-square mile swath of West Michigan traced to Wolverine World Wide’s manufacturing over decades raises questions of federal policy, state action and corporate responsibility… Sandy Wynn-Stelt’s home is just yards from a former Wolverine dump that is poisoning her water. Her blood tested at 750 times the…
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Environmental Risk Assessment of Fire-Water Runoff from Vehicle Fire
Science
22 Jul 2019 | Master’s thesis in Industrial Ecology: Chamblers University of Technology
A model was developed to help predict the environmental degradation of using PFAS containing firefighting foams during vehicle fires.
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Prenatal exposure to chlorinated polyfluoroalkyl ether sulfonic acids and perfluoroalkyl acids: Potential role of maternal determinants and associations with birth outcomes
Science
22 Jul 2019 | Journal of Hazardous Materials
PFOS and PFHxS linked to low birth weight, especially in first-time mothers.
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“Forever chemical” replacements on the rise in the Great Lakes
News
22 Jul 2019 | Environmental Health News
Yet another game of toxic whack-a-mole—this time with PFAS chemicals. Phased-out compounds are decreasing in the Great Lakes, but replacements keep showing up.
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Acute and chronic effects of perfluoroalkyl substance mixtures on larval American bullfrogs (Rana catesbeiana)
Science
22 Jul 2019 | Chemosphere
The developmental effects of PFOS and PFOA as a mixture were worse than effects caused by either single chemical.
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In Utero Exposure to Poly and Perfluoroalkyl Substances (PFASs) and Subsequent Breast Cancer
Science
22 Jul 2019 | Reprod. Toxicol.
High maternal cholesterol combined with PFOS precursors linked to 3.6 fold increase in the risk of breast cancer.
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North Carolina: Soil samples to be taken as part of GenX agreement
News
20 Jul 2019 | The Fayetteville Observer
Chemours, the company that makes GenX has agreed to take soil samples. The company is also to pay a $12 million penalty and $1 million in investigative costs to the state, submit monthly reports about its GenX emissions, and provide drinking water to homes near the plant that have elevated levels of GenX.
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What consumers can do as regulators weigh ‘compounds’ risk
News
20 Jul 2019 | Associated Press
It’s probably impossible to avoid all exposures, says Leonardo Trasande, a children’s environmental health specialist and vice chair for research at New York University’s pediatrics department, and a PFAS expert. But there are “safe and simple steps to limit exposure based on what we know.”
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San Diego company awarded EPA grant to develop water quality test technology
News
19 Jul 2019 | City News Service (Scripps Media Inc.)
The US EPA announced that it awarded a $100,000 contract to 2W iTech, a San Diego-based technology company, to develop a low-cost method to identify trace amounts of perfluoroalkyl substances in water at a rate as small as 10 ppt.
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N.H. approves unprecedented limits for PFAS chemicals in drinking water
Policy
19 Jul 2019
New Hampshire adopted the country’s most sweeping limits for PFAS chemical contamination in drinking water. It makes New Hampshire the first state to require local water systems, landfills and wastewater plants to routinely test and treat for four chemicals classified as PFAS.