Showing 1-15 of 83
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Unraveling the Exposure Spectrum of PFAS in Fluorochemical Occupational Workers: Structural Diversity, Temporal Trends, and Risk Prioritization
Science
18 Mar 2025 | Environ Sci Technol
Researchers analyzed the blood of fluorochemical plant workers in China and found 64 types of PFAS chemicals—including 15 previously unknown ones—with some linked to high health risks due to their persistence and ability to accumulate in the body, highlighting the need for stricter monitoring and regulation of these toxic substances.
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Occurrence of per-and polyfluoroalkyl substances (PFAS) in potable groundwater near military bases in South Korea
Science
4 Mar 2025 | Environ. Sci. Technol. Lett.
Groundwater near U.S. military bases in South Korea is heavily contaminated with PFAS, particularly from aqueous film-forming foam , with some wells exceeding drinking water safety standards by hundreds of times, posing significant health risks.
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Characterizing seasonal patterns, gas-particle partitioning, and potential sources of airborne per-and polyfluoroalkyl substances in Japan
Science
4 Mar 2025 | Environ. Sci. Technol.
Airborne PFAAs and their precursors in Japan show seasonal variations, with PFCAs more abundant in warm months and PFSAs in colder months, primarily originating from aqueous film-forming foams, waste streams, and fluoropolymer manufacturing.
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6:2 Fluorotelomer Ethoxylates in Human Serum and Residential Homes: A Growing Environmental Health Concern
Science
4 Mar 2025 | Environ Sci Technol
6:2 Fluorotelomer ethoxylates (6:2 FTEOs), an emerging group of PFAS widely used in antifog products, were detected in house dust and the serum of pregnant women in South China, showing potential bioaccumulation risks and raising concerns about their environmental and human health impacts.
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The stubborn “chemical invader”: Challenges and solutions for per-and polyfluoroalkyl substances (PFAS) in Chinese sewage sludge
Science
17 Feb 2025 | ACS EST Water
Sewage sludge in China acts as both a source and sink for PFAS, with compounds like PFOS accumulating due to limited degradation by conventional wastewater treatments, highlighting the need for innovative extraction, detection, and environmentally sustainable removal methods to reduce associated environmental contamination and health risks.
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Investigation of common and unreported parabens alongside other plastic-related contaminants in human milk using non-targeted strategies
Science
6 Feb 2025 | Chemosphere
A study of human milk in Canada and South Africa detected multiple paraben-related contaminants, including restricted and uncommon ones, as well as a tire-related chemical, PFAS, and phthalate metabolites. The results emphasize the need to utilize non-target analysis as well as further research the usage, biotransformation, and potential toxicity of a number of contaminants.
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PFAS levels in 80% of Okayama townsfolk exceed U.S. guidelines
News
4 Feb 2025 | The Asahi Shimbun
More than 80 percent of Kibi-Chuo residents tested for cancer-causing organic fluorine compounds in their blood had levels exceeding U.S. guidelines, according to town officials.
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Emerging PFAS Exposure Is More Potent in Altering Childhood Lipid Levels Mediated by Mitochondrial DNA Copy Number
Science
3 Feb 2025 | Environ Sci Technol
Exposure to emerging PFAS, such as 6:2 Cl-PFESA, PFO4DA, and PFO5DoDA, is linked to higher triglycerides, total cholesterol, and low-density lipoproteins in Chinese children aged 7–10 years, suggesting an increased risk of metabolic disorders, including obesity, cardiovascular diseases, and diabetes.
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Per- and Poly-Fluoroalkyl Substances, and Organophosphate Flame Retardants in the Upper Yangtze River: Occurrence, Spatiotemporal Distribution, and Risk Assessment
Science
1 Feb 2025 | Toxics
PFAS and OPFRs were detected in the upper Yangtze River, with higher concentrations in the main stream than in tributaries, particularly near industrial and urban areas, and while ecological risks were generally low, some locations, especially near wastewater discharge sites, showed potential carcinogenic risks for adults due to OPFR exposure.
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Exploring the Chemical Complexity and Sources of Airborne Fine Particulate Matter in East Asia by Nontarget Analysis and Multivariate Modeling
Science
27 Jan 2025 | Environ Sci Technol
Airborne fine particulate matter (PM2.5) in East Asia contains thousands of complex organic and inorganic chemicals, including newly identified PFAS seasonal variations are influenced by temperature and air mass origins from China, the Korean Peninsula, and surrounding seas.
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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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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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Maternal Exposure to Per- and Polyfluoroalkyl Substances and Offspring Chromosomal Abnormalities: The Japan Environment and Children's Study
Science
11 Sep 2024 | Environ Health Perspect
Maternal exposure to certain PFAS chemicals, particularly PFOS, may be associated with an increased risk of chromosomal abnormalities in offspring, though further research is needed due to potential selection bias.
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Nontarget Analysis Combined with TOP Assay Reveals a Significant Portion of Unknown PFAS Precursors in Firefighting Foams Currently Used in China
Science
9 Sep 2024 | Environ. Sci. Technol.
Researchers identified 54 PFAS compounds, including seven novel ones, in Chinese firefighting foams, with some meeting persistence, bioaccumulation, and toxicity criteria, and advanced analysis revealed additional PFAS precursors that were previously undetected.
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Concentration and human health risk attribute to per-and polyfluoroalkyl substances in fillet of carp and tilapia fish: systematic review and meta-analysis
Science
22 Aug 2024 | J. Food Compos. Anal.
The meta-analysis revealed that PFAS concentrations are highest in tilapia (193.45 µg/kg) and carp (47.17 µg/kg) from China, with the highest non-carcinogenic risk from PFAS consumption for adults also observed in China; risk levels in other countries are notably lower, though ongoing monitoring is needed.