Showing 211-225 of 1759
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Evaluating Dermal Absorption of Perfluorooctanoic Acid (PFOA) and Implications for Other Per-and Polyfluoroalkyl Substances (PFAS)
Science
6 Jan 2025 | Regul Toxicol Pharmacol
PFOA was found to have low dermal absorption compared to other harmful chemicals, with these authors selecting a 1.6% absorption rate as the published value most likely to be accurate, suggesting that ingestion remains a higher exposure pathway compared to skin contact.
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Scientists discover concerning new source of ‘forever chemicals’ in drinking water
News
6 Jan 2025 | CNN
A group of potentially toxic “forever chemicals,” mostly coming from prescribed drugs, may be contaminating drinking water for millions of Americans, as wastewater treatment plants fail to remove them — and climate change may be making the situation even worse, according to a new report.
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Pulitzer Center series on PFAS & firefighting: A fire hose of ‘forever chemicals’
News
1 Jan 2025 | Maine Morning Star
Maine Morning Star in partnership with the Pulitzer Center has published a an investigative series examining the prevalence of PFAS in and from firefighting, particularly in the use of foam known as AFFF and in firefighter turnout gear.
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Cleaner cuts: Farmed fish and skin-off fillets are lower in per- and polyfluoroalkyl substances (PFAS)
Science
28 Dec 2024 | Sci Total Environ
Farmed fish and skin-off fillets generally contain lower levels of harmful PFAS chemicals compared to wild fish and skin-on fillets, making them potentially safer dietary choices for reducing exposure to these persistent environmental pollutants.
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Japan to make tougher standard permanent for PFAS in tap water
News
26 Dec 2024 | Star and Stripes
The Environment Ministry during an online experts meeting Tuesday agreed to adopt a target value of 50 nanograms per liter, or 50 parts per trillion, for PFOS and PFOA — components of PFAS, also known as “forever chemicals” — in its water quality standards.
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Predicted Potential for Aquatic Exposure Effects of Per-and Polyfluorinated Alkyl Substances (PFAS) in Pennsylvania’s Statewide Network of Streams
Science
19 Dec 2024 | Toxics
A machine learning model was used to effectively predict the ecological health risks of PFAS in Pennsylvania stream water, finding that industrial/urban land cover, rainfall intensity, geology, and agricultural factors had the greatest impacts.
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Per-And Poly-Fluoroalkyl Substances (PFAS) Exposure and Risk of Breast, and Female Genital Cancers: A Systematic Review and Meta-Analysis
Science
19 Dec 2024 | Med Lav.
Exposure to PFAS may be associated with an increased risk of ovarian cancer and a potential link to breast cancer, though further research is needed to clarify these relationships.
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Per-and polyfluoroalkyl substances in paired serum and breastmilk samples among pregnant farmworkers in Thailand
Science
16 Dec 2024 | Int. J. Hyg. Environ. Health.
PFOS and PFNA were the most commonly detected PFAS in breastmilk from Thai farmworkers, with lactational transfer efficiencies up to 14.7%, highlighting a significant route of postnatal exposure for infants.
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City of Tucson files lawsuit against federal government over water contamination
News
13 Dec 2024 | KVOA
The City of Tucson has filed a lawsuit against the federal government, alleging negligence by the U.S. Air Force has caused widespread contamination of the city’s drinking water with harmful "forever chemicals."
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PFAS in manufacturing: Auditing your supply chain for forever chemicals
News
12 Dec 2024 | Manufacturing Drive
Regulatory and consumer pressures are driving brands to go PFAS-free. Here’s how to identify which suppliers and materials could use or contain the chemicals.
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[EDITORIAL] Fluoropolymers and nanomaterials, the invisible hazards of cell phone and computer touchscreens
Science
11 Dec 2024 | Environ Chem Lett
Nanomaterials and fluoropolymers in touchscreen coatings, designed to repel smudges, pose hidden risks of toxicity and environmental harm as they degrade and transfer to users' skin, especially affecting children and frequent users.
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Occurrence, Transport, and Full-Scale Adsorptive Removal of PFAS in Electroplating Parks in China
Science
11 Dec 2024 | Environ. Sci. Technol.
Granular activated carbon and hydrophobic anion exchange resin were found to effectively remove up to 98.2% of PFAS from electroplating wastewater in China, reducing annual PFAS discharge by 5030–8000 kg. Anion exchange resin showed higher efficiency but lower selectivity for certain PFAS.
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Individual and joint associations of exposure to per- and polyfluoroalkyl substances with children's mitochondrial DNA copy number, and modified by estimated glomerular filtration rate
Science
10 Dec 2024 | Environ Res
Legacy and emerging PFAS, especially PFOA, were associated with lower levels of mitochondrial DNA in children, with more pronounced associations seen in those with weaker kidney function and older age, highlighting the potential health risks of PFAS exposure in early life.
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EPA Proposes to Update Proposed SNURs for 17 PFAS, Designating Manufacture (Including Import) as a Significant New Use
Policy
9 Dec 2024
On November 29, 2024, the U.S. EPA issued a supplemental notice of proposed rulemaking that would update the December 2, 2022, proposed significant new use rules for 17 PFAS that were the subject of premanufacture notices and are also subject to an Order issued by EPA pursuant to the Toxic Substances Control Act.
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‘This is my Chernobyl:’ Texas ranchers watch cows die because of PFAS
News
7 Dec 2024 | News Nation
Testing by the county revealed contamination that curiously extended from the fertilizer spread on the neighbor’s farmland across the street — to the soil and water on the Colemans’ properties, as well as their animals.