Showing 61-75 of 188
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PFAS in pesticides: ‘A problem of epic proportions’
News
5 Mar 2021 | E&E News
It is unclear how the PFAS are getting into the pesticides, and whether manufacturers are intentionally adding the chemicals, as opposed to accidental contamination from equipment used to manufacture or transport the pesticides.
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Cross-Flow Treatment of PFAS in Water: Materials Challenges and Potential Solutions
Science
23 Feb 2021 | Acc. Mater. Res.
Thin-film composite membranes have shown highly efficient in removing PFAS from contaminated water.
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Response to “Comment on Scientific Basis for Managing PFAS as a Chemical Class
Science
1 Feb 2021 | Environ. Sci. Technol
Here we are responding to the comment by Singh and Papanastasiou who disagree with a class-based approach to PFAS and build their argument around hydrochlorofluorocarbons.
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DEQ cites Chemours for PFAS treatment system failures
News
28 Jan 2021 | North Carolina Health News
The chemical plant in Bladen County, NC receives notice of violation for problems with a new treatment system that is expected to remove 99 percent of residual PFAS before they reach the Cape Fear River. This is the third notice of violation the DEQ has issued Chemours for its treatment system, and one of many since the public became aware of the contamination from the plant.
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Predicting the risk of GenX contamination in private well water using a machine-learned Bayesian network model
Science
19 Jan 2021 | J. of Haz. Mat.
Modeling predicts that atmospheric deposition rate is the most important factor influencing risk.
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Characterizing the Air Emissions, Transport, and Deposition of Per- and Polyfluoroalkyl Substances from a Fluoropolymer Manufacturing Facility
Science
12 Jan 2021 | Environ Sci Technol
PFAS with acid functionality has higher deposition due to enhanced water solubility and pH-driven partitioning to aqueous media.
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Per- and polyfluoroalkyl substances and their alternatives in black-tailed gull (Larus crassirostris) eggs from South Korea islands during 2012-2018
Science
6 Jan 2021 | J Hazard Mater
Significant increasing temporal trends were observed for PFOS, PFNA, and F-53B suggesting continuous use or accumulation of these in the Korean environment.
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Toxic effects and mechanisms of PFOA and its substitute GenX on the photosynthesis of Chlorella pyrenoidosa
Science
5 Jan 2021 | Sci Total Environ
Prolonged exposure to GenX lead to decreased ability to photosynthesize.
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Profiling of emerging and legacy per-/polyfluoroalkyl substances in serum among pregnant women in China
Science
29 Dec 2020 | Env. Poll.
6:2Cl-PFESA to PFOS ratio in serum shows an apparent geographic difference in China.
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Persistent, mobile and toxic (PMT) and very persistent and very mobile (vPvM) substances pose an equivalent level of concern to persistent, bioaccumulative and toxic (PBT) and very persistent and very bioaccumulative (vPvB) substances under REACH
Science
21 Dec 2020 | Environmental Sciences Europe
The registration process of substances under REACH should reflect that PMT/vPvM substances pose an equivalent level of concern to PBT/vPvB substances.
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Per- and polyfluoroalkyl substances in Chinese and German river water - Point source- and country-specific fingerprints including unknown precursors
Science
8 Dec 2020 | Environ Pollut
This study aimed at comparing source-specific fingerprints of PFAS in river water from China and Germany selected as countries with different histories of PFAS production.
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New York ban on PFAS in food packaging is now law
News
7 Dec 2020 | The National Law Review
The bill broadly bans the use of all PFAS and goes into effect in 2023.
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Correlation Analysis of Perfluoroalkyl Substances in Regional U.S. Precipitation Events
Science
2 Dec 2020 | Water Res
HFPO-DA (GenX) was detected in rainwater at all sites with local point sources strongly contributing to wet deposition.
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Tests reveal toxic ‘forever chemicals’ in aerial pesticide showered over millions of acres in US
News
1 Dec 2020 | Common Dreams
The manufacturer claimed that PFAS were not used in the production, manufacturing, or distribution of either the active or inactive ingredients of the pesticide found to contain 250 ppt of PFOA, 260–500 ppt of GenX, a replacement for PFOA.
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Epigenetic Modifications, and Alterations in Cell Cycle and Apoptosis Pathway in A549 Lung Carcinoma Cell Line upon Exposure to Perfluoroalkyl Substances
Science
1 Dec 2020 | Toxics
Exposure to GenX, PFOA, and PFOS may have profound effects in patients with pre-existing lung conditions or could lead to cancer.