Showing 1411-1425 of 1631
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Field Sampling Materials Unlikely Source of Contamination for Perfluoroalkyl and Polyfluoroalkyl Substances in Field Samples
Science
25 Feb 2020 | Environ. Sci. & Tech. Let.
Sixty-six common materials used to sample and analyze for PFAS were found not to be a significant source of PFAS contamination in field samples.
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Chronic PFAS-exposure under environmentally relevant conditions delays development in northern leopard frog (Rana pipiens) larvae
Science
25 Feb 2020 | Environ. Toxicol. Chem.
Developmental delays were seen at levels as low as 0.06 ppb in frogs.
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EPA closer to regulating PFAS in drinking water
News
20 Feb 2020 | Bloomberg Environment
In addition to proposing to regulate PFOA and PFOS, the EPA is asking for data and information including new monitoring and health effects data to decide whether regulation is appropriate for other chemicals in the PFAS family.
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[Press release] Department of defense illegally burning stockpiles of toxic “forever chemicals”
News
20 Feb 2020 | EarthJustice
The Department of Defense sued over its contracts to burn millions of gallons of unused firefighting foam containing PFAS in incinerators across the country. PFAS resist incineration and do not break down under temperatures and conditions that are sufficient to destroy other toxic chemicals. Incomplete incineration may result in PFAS emissions, as well as other toxic chemicals like hydrogen fluoride, which is poisonous, corrosive and flammable.
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[Live Stream] From PBB to PFAS: Research and Action to Address Michigan’s Large-Scale Chemical Contaminations
Events
20 Feb 2020
The PBB to PFAS symposium will provide a unique venue for fostering collaboration between researchers and community members to prevent large-scale environmental contamination and reduce adverse health impacts of those that have occurred. While registration for in-person attendance has closed, you can still register for the Live Stream.
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Model-based analysis of the uptake of perfluoroalkyl acids (PFAAs) from soil into plants
Science
19 Feb 2020 | Chemosphere
A model was used to determine PFAS movement in the stem and fruit in red chicory.
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Origin and organ-specific bioaccumulation pattern of perfluorinated alkyl substances in crabs
Science
19 Feb 2020 | Environ. Poll.
PFOA was dominant among the PFAS in Korean and Chinese crabs, and PFOS was dominant among Pakistani and Indian crabs.
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Evaluating perfluorooctanesulfonate oxidation in permanganate systems
Science
18 Feb 2020 | Environ. Sci. and Poll. Res.
The addition of salts may have application for collecting or concentrating PFOS and other PFAS in a remediation or water treatment strategy.
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Combined effects and toxicological interactions of perfluoroalkyl and polyfluoroalkyl substances mixtures in human liver cells (HepG2)
Science
18 Feb 2020 | Environ. Poll.
The combined effects of 6 PFAS were found to cause increased health harm compared to 1 PFAS alone.
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Global list of PFAS Guideline Values
Science
18 Feb 2020
A global compilation of PFAS guideline values for water, soil, and other matrices, as well as total daily intakes and blood health values.
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Elevated levels of per- and polyfluoroalkyl substances in Cape Fear River Striped Bass (Morone saxatilis) are associated with biomarkers of altered immune and liver function
Science
18 Feb 2020 | Environ Int
The elevated PFAS concentrations found in the striped bass indicated poor liver and immune system function.
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Fecal Excretion of Perfluoroalkyl and Polyfluoroalkyl Substances in Pets from New York State, United States
Science
13 Feb 2020 | Environ Sci Technol. Let.
The estimated daily fecal excretion suggested that both dogs and cats are exposed to some PFASs at doses above the provisional minimum risk level recommended for humans.
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The effect of weathering on per- and polyfluoroalkyl substances (PFASs) from durable water repellent (DWR) clothing
Science
12 Feb 2020 | Chemosphere
Weathering of outdoor clothing can result in an 5-100 fold increase in the varieties of PFAS present.
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Assessing the Effectiveness of Point-of-Use Residential Drinking Water Filters for Perfluoroalkyl Substances (PFASs)
Science
12 Feb 2020 | Environ Sci Technol. Let.
PFAS removal efficiency was dependent on chain length, with long-chain PFASs (∼60–70% removal) being more efficiently removed than short-chain PFASs (∼40% removal).
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Contaminants, prolactin and parental care in an Arctic seabird: Contrasted associations of perfluoroalkyl substances and organochlorine compounds with egg-turning behavior
Science
12 Feb 2020 | Gen. Comp. Endocrinol.
Increased levels of PFAS were associated with lowered nutrition levels and angular changes in birds.