Showing 121-135 of 1718
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Per/Polyfluoroalkyl Substances (PFASs) in a Marine Apex Predator (White Shark, Carcharodon carcharias) in the Northwest Atlantic Ocean
Science
14 Jan 2024 | ACS Environmental Au
This study highlighted the accumulation of PFAS in plasma and muscle tissue of white sharks in the Northwest Atlantic Ocean far from pollution sources and noted some geographical differences in PFAS body burdens that may be due to differences in the diet among these distinct shark populations.
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GreenScreen Certification shows packaging is free from PFAS
News
13 Jan 2024 | New Hope Network
Green Screen for Safer Chemicals, which operates the certification program, examines the chemistry of single-use and reusable packaging products.
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Maternal serum concentrations of per- and polyfluoroalkyl substances and childhood acute lymphoblastic leukemia
Science
13 Jan 2024 | JNCI
Maternal exposure to certain PFAS during pregnancy, particularly MeFOSAA, is associated with an increased risk of childhood acute lymphoblastic leukemia, with notable connections to elevated levels of PFOS, suggesting a potential link between these environmental chemicals and the development of the most common childhood cancer.
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Health-Ade hit with class action lawsuit claiming its kombucha contains PFAS
News
12 Jan 2024 | Reuters
Alanna Morton, a New York resident, filed the lawsuit on Tuesday in Manhattan federal court, claiming the company misleadingly marketed and advertised its kombucha as a “health” product even though it tested positive for dangerously high levels of PFAS.
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EPA finalizes new rules for companies producing toxic PFAS chemicals
News
11 Jan 2024 | WHYY
Companies must now notify the EPA if they want to resume the production of certain PFAS chemicals.
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Passive Sampler Derived Profiles and Mass Flows of Perfluorinated Alkyl Substances (PFASs) across the Fram Strait in the North Atlantic
Science
10 Jan 2024 | Environ. Technol. Lett.
PFAS were found at different depths across the Fram Strait, showing long-range marine transport and suggesting that PFAS in the Arctic are governed by a feedback loop between the Atlantic and Arctic oceans as well as atmospheric transport.
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EPA Takes Steps to Limit the Use of Certain PFAS
Policy
10 Jan 2024
The U.S. Environmental Protection Agency will implement a rule under the Toxic Substances Control Act requiring companies to notify and obtain approval from the EPA before manufacturing, importing, or processing more than 300 PFAS listed on the TSCA Inventory, even if they are labeled as "inactive."
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Toxicity Assessment of Mixed Exposure of Nine Perfluoroalkyl Substances at Concentrations Relevant to Daily Intake
Science
10 Jan 2024 | Toxics
This study exposed mice to a mixture of PFAS at levels equivalent to estimated daily human intake, revealing that even low concentrations of PFAS caused liver tissue changes and altered gene expression related to metabolism and cancer, emphasizing the need for thorough toxicity assessments of these persistent environmental contaminants.
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Association of prenatal exposure to perfluorinated and polyfluoroalkyl substances with childhood neurodevelopment: A systematic review and meta-analysis
Science
10 Jan 2024 | Ecotoxicol Environ Saf
A meta-analysis on prenatal exposure to PFAS suggests a sex-specific relationship, revealing that PFOS, PFOA, and PFHxS are associated with decreased performance IQ in boys but PFOS was linked to increased performance IQ in girls, while PFAS are linked to executive function impairments in children without a significant association with behavioral difficulties.
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PFAS found in almost 1,000 products sold in Maine, so far
News
4 Jan 2024 | Portland Press Herald
From shampoo to school supplies, dog treats to dishware, the brand names that admit to using forever chemicals are ubiquitous.
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Binding of Per- and Polyfluoroalkyl Substances (PFAS) to Serum Proteins: Implications for Toxicokinetics in Humans
Science
3 Jan 2024 | Environ Sci Technol
PFAS binding to major blood serum proteins is thought to affect toxicity, transport, and half-lives in the body. This study found shorter-chain PFAS showing a stronger binding to human serum albumin and longer-chain PFAS displaying a greater affinity for globulins, emphasizing the significance of understanding these interactions for more precise assessments of PFAS impact on human health in epidemiological studies.
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Assessing potential human health and ecological implications of PFAS from leave-in dental products
Science
3 Jan 2024 | Toxicol Ind Health
PFBA and PFOS were found in low levels in night guards with no detection in whitening trays, suggesting these dental products are unlikely to pose health concerns or contribute significantly to environmental PFAS exposure compared to exposure from food and water.
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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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Investigating the progression of preeclampsia through a comprehensive analysis of genes associated with per- and polyfluoroalkyl substances
Science
2 Jan 2024 | Toxicol Mech Methods
Using advanced analysis of genetic data, researchers identified a potential link between PFAS and the risk of preeclampsia, suggesting that these environmental factors may play a role in the development of the disease, and highlighted six genes with diagnostic potential for preeclampsia.
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Understanding the effects of per- and polyfluoroalkyl substances on early skin development: Role of ciliogenesis inhibition and altered microtubule dynamics
Science
30 Dec 2023 | Sci Total Environ
Exposure to PFOS may disrupt early skin development by altering cell morphology, gene expression, and crucial signaling pathways, suggesting a potential link between PFAS exposure and congenital skin diseases during embryonic development.