Showing 286-300 of 1057
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Injustice Forever? Toxic PFAS Chemicals Have ‘Made a Mockery of Our Environmental Regulations’
Policy
10 Jan 2022
With a lack of regulations addressing toxic “forever chemicals,” students and professors at a Vermont college have taken their research skills into communities to spur action.
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Characterization of Per- and Polyfluorinated Alkyl Substances Present in Commercial Anti-fog Products and Their Adipogenic Activity
Science
10 Jan 2022 | Environ Sci Technol
High concentrations of PFAS were detected in all measured anti-fog products, with FTEOs found to be a significant contributor to the adipogenic activity exhibited by the anti-fog sprays.
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Prevalence and Implications of Per- and Polyfluoroalkyl Substances (PFAS) in Settled Dust
Science
10 Jan 2022 | Curr Environ Health Rep
This review emphasizes the prevalence of PFAS in indoor dust - especially daycares and workplaces - with sources of PFAS including building materials and furnishings and consumer products.
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Increased levels of perfluorooctanesulfonic acid (PFOS) during Hurricane Dorian on the east coast of Florida
Science
10 Jan 2022 | Environ Res
Mean PFOS levels in surface water showed the greatest increase of 177% during the hurricane and returned to baseline levels after two days.
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Quantitation of linear and branched perfluoroalkane sulfonic acids (PFSAs) in women and infants during pregnancy and lactation
Science
10 Jan 2022 | Environ Int
A linear relation between PFSA concentrations in mothers at pregnancy week 18 and infants at six months was observed, suggesting that pregnancy and lactation are major excretion routes for PFSA, but accumulate in the infant.
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Food, Beverage, and Feedstock Processing Facility Wastewater: a Unique and Underappreciated Source of Contaminants to U.S. Streams
Science
9 Jan 2022 | Environ Sci Technol
Wastewater generated from food and beverage processing from 12 facilities in 17 states was found to contain 6:2 fluorotelomer sulfonic acid and other PFAS at elevated concentrations.
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High levels of toxic ‘forever chemicals’ found in anti-fogging sprays for glasses
News
5 Jan 2022 | The Guardian
Anti-fogging sprays and cloths often used to prevent condensation on eyeglasses from wearing a mask or on face shields may contain high levels of potentially toxic PFAS “forever chemicals”, according to a new study led by Duke University.
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Per-and Polyfluorinated Alkyl Substances (PFAS) Cycling within Michigan: Contaminated Sites, Landfills and Wastewater Treatment Plants
Science
4 Jan 2022 | Water Research
Analysis of PFAS in Michigan waste found that landfill leachate is a primary source of PFAS to WWTPs, and treatment can increase PFAS concentrations up to 19x, yet long-chain PFAS like PFOA concentrate in biosolids.
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Prenatal and postnatal exposure to emerging and legacy per-/polyfluoroalkyl substances: Levels and transfer in maternal serum, cord serum, and breast milk
Science
4 Jan 2022 | Sci Total Environ
Most PFAS transfer more efficiently via the placenta than breastfeeding, but the one-month postnatal exposure to PFAS via breastfeeding was higher than prenatal exposure in utero.
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Absorption and elimination of per and poly-fluoroalkyl substances substitutes in salmonid species after pre-fertilization exposure
Science
4 Jan 2022 | Sci Total Environ
PFBA, PFBS, and GenX were eliminated faster than PFOS or PFOA in fish.
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Analysis of the additional cost of addressing per-and polyfluoroalkyl substance contamination from landfill leachate by reverse osmosis membranes in Thailand
Science
4 Jan 2022 | J. Water Process. Eng.
The net present cost to remove PFAS from landfill liquid waste using reverse osmosis was estimated to be between $392-578 million USD for a network of 111 landfills.
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Change in global PFAS Cycling as a response of permafrost degradation to climate change
Science
4 Jan 2022 | J. Hazard. Mater. Adv.
Permafrost is a likely source of PFAS pollution due to the freeze-thaw process, which changes the spatial distribution of different compounds of PFAS in permafrost depth.
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Minnesota Department of Health PFHxA health-based guidance for water
Policy
4 Jan 2022
Minnesota's Department of Health updated its toxicological profile for PFHxA.
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Combined Use of Total Fluorine and Oxidative Fingerprinting for Quantitative Determination of Side-Chain Fluorinated Polymers in Textiles
Science
3 Jan 2022 | ES&T
A method was developed to determine the side-chain fluorinated polymer concentrations in terms of the side chain mass, as opposed to fluorine equivalents, facilitating the estimation of the structure and quantity of PFAA degradation products in medical textiles.
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Insufficient evidence for the existence of natural trifluoroacetic acid
Science
3 Jan 2022 | Environ. Sci.: Processes Impacts
The authors argue that there is not sufficient evidence that TFA occurs naturally, contrary to previous claims.