Showing 106-120 of 556
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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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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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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.
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US EPA turns down requests for more PFAS toxicity testing
Policy
30 Dec 2021
The US EPA has deferred or turned down advocacy groups’ requests to require Chemours to conduct toxicity tests on dozens of fluorochemicals found in North Carolina drinking water supplies.
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Sea Spray Aerosol (SSA) as a Source of Perfluoroalkyl Acids (PFAAs) to the Atmosphere: Field Evidence from Long-Term Air Monitoring
Science
21 Dec 2021 | Environ Sci Technol
Seaspray aerosols may be a source of PFAAs to the air, where they can undergo long-distance transportation.
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Immunotoxicity of PFOA to the Marine Bivalve Species Ruditapes philippinarum
Science
21 Dec 2021 | Environ Toxicol Chem
PFOA was found to be immunotoxic to saltwater clams, at different levels highlighting the potentially detrimental effects of PFAS contamination in marine ecosystems.
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Forever chemicals: FL Senate panel proposes to tackle PFAS contamination
Policy
20 Dec 2021
The proposed committee bill would create a 16-member task force by next fall to determine how to identify and clean up contamination with PFAS, used for decades in a variety of consumer products such as food packaging and cookware.
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Environmental pollutant exposure associated with altered early-life gut microbiome: Results from a birth cohort study
Science
20 Dec 2021 | Environ Res
Prenatal exposure to PFAS is associated with alterations to gut microbiome development in infants, with larger effects in breastfed and cesarean-section-born babies.
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Development and validation of an LC-MS/MS method for the quantitation of 30 legacy and emerging per- and polyfluoroalkyl substances (PFASs) in human plasma, including HFPO-DA, DONA, and cC6O4
Science
20 Dec 2021 | Anal Bioanal Chem
An assay was developed suitable for large-scale analyses of a wide range of legacy and emerging PFAS in human plasma.
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Extractable organofluorine analysis: A way to screen for elevated per- and polyfluoroalkyl substance contamination in humans?
Science
19 Dec 2021 | Environ Int
Extractable organofluorine analysis was found to be an accurate screening method for detecting high PFAS levels in human blood.
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PFAS ‘forever chemicals’ constantly cycle through ground, air and water, study finds
News
18 Dec 2021 | The Guardian
Seaspray aerosols may be a source of PFAAs to the air, where they can undergo long-distance transportation, traveling thousands of kilometers.
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PFAS ‘forever chemicals’ constantly cycle through ground, air and water, study finds
News
18 Dec 2021 | The Guardian
Toxic PFAS “forever chemicals” in the ocean are transported from seawater to air when waves hit the beach and that phenomenon represents a significant source of air pollution, a new study from Stockholm University has found.
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Montmorillonite clay-based sorbents decrease the bioavailability of per- and polyfluoroalkyl substances (PFAS) from soil and their translocation to plants
Science
13 Dec 2021 | Environ Res
The addition of amended clay to soils was found to reduce the uptake of PFAS into edible crops by up to 74%.