Showing 16-30 of 71
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Overview of PFAS Regulations in the United States and What Japanese Companies and Their U.S. Subsidiaries Need to Know
Policy
2 Jan 2024
This article provides an overview of PFAS regulation in the United States, emphasizing its relevance to various Japanese businesses, including those in specialty chemicals, manufacturing, oil and gas, and trading, due to the widespread use of PFAS in commercial products, potential liability risks, and recent multi-billion dollar settlements in PFAS contamination lawsuits.
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[Discussion] Perfluorohexyloctane: Do we really need a PFAS for the treatment of Dry Eye Disease?
Science
7 Aug 2023 | Sci. Total Environ.
The researchers argue that non-pharmacological strategies and traditional artificial tears, which lack environmental risks, should be tried as treatments before eye drops that are composed entirely of PFAS.
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Per-and polyfluoroalkyl substances (PFAS) as a health hazard: Current state of knowledge and strategies in environmental settings across Asia and future perspectives
Science
29 Jul 2023 | J. Chem. Eng.
This review discussed the current knowledge of PFAS in Asian countries and how the lack of a regulatory framework has exposed millions of people to the potential negative health impacts of PFAS.
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Environmental exposure and ecological risk of perfluorinated substances (PFASs) in the Shaying River Basin, China
Science
19 Jul 2023 | Chemosphere
PFAS exposure via inhalation of particulate matter was found to be dominated by low levels of PFSAs and PFCAs, but inhalation exposure is still important due to its long-term and cumulative nature.
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Nationwide distribution of per- and polyfluoroalkyl substances (PFAS) in road dust from India
Science
2 Jun 2023 | Sci Total Environ
Total PFAS in road dust was highest in urban followed by suburban and rural areas, with the highest estimated daily intake of PFAS via road dust ingestion found to be in toddlers.
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Global ocean contamination of per- and polyfluoroalkyl substances: A review of seabird exposure
Science
18 Apr 2023 | Chemosphere
Seabirds had higher levels of PFOS exposure – often exceeding toxicity reference values in places like the Baltic Sea and the San Francisco Bay – in the late 1990s and early 2000s, consistent with the phase-out of PFOS-based chemicals.
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Concentrations and isomer profiles of perfluoroalkyl carboxylates in house rats (Rattus norvegicus) and human blood: Implication for human exposure sources
Science
11 Apr 2023 | Sci Total Environ
Fluorotelomer alcohol exposure and subsequent biotransformation is an important source of PFCAs in humans and rats that live nearby.
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The association of perfluoroalkyl substances (PFAS) exposure and kidney function in Korean adolescents using data from Korean National Environmental Health Survey (KoNEHS) cycle 4 (2018-2020): a cross-sectional study
Science
15 Mar 2023 | Ann Occup Environ Med
Increased PFAS concentration was correlated with lower kidney function in high school students.
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Invited Perspective: PFAS in Breast Milk and Infant Formula—It’s Time to Start Monitoring
Science
2 Mar 2023 | EHP
The author states that health-based guidance values are needed for infant PFAS exposures for the myriad of legacy and emerging PFAS—not just the four drinking water screening values used in the U.S.
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Emerging and Legacy Perfluoroalkyl Substances in Breastfed Chinese Infants: Renal Clearance, Body Burden, and Implications
Science
2 Mar 2023 | Environ Health Perspect
Legacy and novel short-chain PFAS were found widespread in human breast milk, with 6:2 Cl-PFESA displaying a median half-life of 49 years in infants.
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How Widespread Are These Toxic Chemicals? They’re Everywhere.
News
23 Feb 2023 | The New York Times
While concern about PFAS compounds, also known as “forever chemicals” because they break down very slowly, has largely focused on people, the pollutants have also been detected in wildlife.
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Exposure to serum perfluoroalkyl substances and biomarkers of liver function: The Korean national environmental health survey 2015-2017
Science
21 Feb 2023 | Chemosphere
Higher serum PFOA, PFOS, PFHxS, PFDA, and PFNA concentrations were related to higher serum concentrations of liver enzymes, although some differences were dependent on sex and obesity status.
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Potentially harmful chemicals found in Tokyoites’ blood
News
1 Feb 2023 | The Japan Times
A Tokyo citizens group said Monday it has detected high concentrations of potentially harmful substances known as PFAS in some western Tokyo residents’ blood.
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Associations between per and polyfluoroalkyl ether sulfonic acids and vitamin D biomarker levels in Chinese newborns
Science
5 Jan 2023 | Sci Total Environ
Exposure to legacy PFAS, including PFTrDA, PFHxS, and PFOS, might disturb vitamin D status in newborns.
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Occurrence, partitioning and transport of perfluoroalkyl acids in gas and particles from the southeast coastal and mountainous areas of China
Science
5 Dec 2022 | Environ Sci Pollut Res Int.
The longer the fluorinated carbon chain length of the PFAA, the more the PFAA tended to exist in the particulate phase, and PFAS in China can be widely spread through the atmosphere due to winter monsoon winds.