Showing 2596-2610 of 3147
-
3M-Decatur enters into consent order with state to clean up industrial pollutants
News
26 Jul 2020 | Times Daily
3M Co. has entered into a consent order with the Alabama Department of Environmental Management that requires the company to clean up "forever chemicals" from its Decatur plant and from numerous waste sites in Morgan and Lawrence counties, ADEM announced today.
-
With ‘trepidation,’ Michigan settles Wurtsmith PFAS cleanup dispute
News
26 Jul 2020 | MLive
A major bone of contention has been around the Air Force’s reluctance to comply with a low, 12 ppt state cleanup threshold for PFOS at the point where contaminated groundwater vents to surface water bodies.
-
New Michigan PFAS rules set to take effect Aug. 3, among nation’s strictest
News
23 Jul 2020 | The Detroit News
The rules set maximum contaminant levels at 6 ppt for PFNA; 8 ppt for PFOA; 400,000 ppt for PFHxA; 16 ppt for PFOS; 51 ppt for PFHxS; 420 ppt for PFBS and 370 ppt for HFPO-DA or Gen X.
-
PFAS in German children: Human biomonitoring data highlight urgent need for group restriction
News
23 Jul 2020 | CHEM Trust
One-fifth of the participants had levels of the PFAS chemical PFOA in their blood that exceeded the HBM-I-value, which indicates an exposure at which harmful effects cannot be excluded.
-
Study: Novel PFAS comprise 24% of those measured in blood of Wilmington, N.C. residents
News
23 Jul 2020 | NC State News
The fluoroethers – Nafion byproduct 2, PFO4DA and PFO5DoA – these are the first measurements of these chemicals in humans. Two other fluoroethers, PFO3OA and NVHOS, were infrequently detected. Nearly all samples had at least one fluoroether present, but GenX was not found in any samples.
-
Cooking methods affect the intake of per- and polyfluoroalkyl substances (PFASs) from grass carp
Science
22 Jul 2020 | Ecotoxicol. Environ. Saf.
The effects of various cooking methods (boiling, steaming, grilling, and frying) on the levels of PFASs in fish muscle and the intake of PFASs were explored.
-
Per- and polyfluoroalkyl substances in ducks and the relationship with concentrations in water, sediment, and soil
Science
22 Jul 2020 | Environ. Toxicol. Chem.
Elevated PFOS and PFOS+PFHxS concentrations in ducks were observed near local point-sources, but also at wetlands with no known point-sources of contamination.
-
Disposal of products and materials containing per- and polyfluoroalkyl substances (PFAS): A cyclical problem
Science
21 Jul 2020 | Chemosphere
PFAS-containing wastes create repeated cycles of contamination in all disposal pathways: landfilling, wastewater treatment, and incineration.
-
Are melamine and its derivatives the alternatives for per- and polyfluoroalkyl substance (PFAS) fabric treatments in infant clothes?
Science
21 Jul 2020 | Environ. Sci. Technol.
Melamine was found to be a potential alternative to PFAS in infant textiles.
-
Background contamination of perfluoralkyl substances in a Belgian general population
Science
21 Jul 2020 | Toxicol. Lett.
Half of the population showed PFOS and PFOA serum levels above the health guidance values set by the German HBM Commission.
-
Can exposure to ‘forever chemicals’ make people more vulnerable to COVID-19?
News
20 Jul 2020 | NEWS CENTER Maine
A federal report links exposure to PFAS chemicals and COVID-19 and reducing the effectiveness of certain vaccines. There is also concern that exposure could limit the effectiveness of a potential vaccine against COVID-19.
-
Are feathers of a songbird model species (the great tit: ) suitable for monitoring perfluoroalkyl acids (PFAAs) in blood plasma?
Science
14 Jul 2020 | Environ. Sci. Technol.
Results suggest that feathers cannot be used to estimate PFOA and PFOS concentrations in blood plasma, except when there is a great deal of variation in pollutant concentrations among sites/individual birds.
-
Spatial profiles of perfluoroalkyl substances and mercury in fish from northern Lake Victoria, East Africa
Science
13 Jul 2020 | Chemosphere
Trophic magnification is a key factor in the PFAS and MeHg+ spatial profiles.
-
Efficient Photocatalytic PFOA Degradation over Boron Nitride
Science
13 Jul 2020 | ES&T L
Boron nitride was found to efficiently defluorinate PFAS when combined with UV light.
-
Serum Half-Lives for Short- and Long-Chain Perfluoroalkyl Acids after Ceasing Exposure from Drinking Water Contaminated by Firefighting Foam
Science
13 Jul 2020 | Environ. Health Perspect.
Branched PFOS isomers had shorter half-lives than linear PFOS isomers in contaminated human blood.