Showing 1-15 of 1718
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Development of chemical categories for per- and polyfluoroalkyl substances (PFAS) and the proof-of-concept approach to the identification of potential candidates for tiered toxicological testing and human health assessment
Science
30 Jun 2025 | Comput Toxicol
US EPA researchers mapped about 15,500 PFAS, grouped them into 128 structural categories, and pointed out the biggest data gaps—so regulators can target testing the most concerning types instead of addressing each chemical one by one.
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“PFAS are everywhere” – Fears growing about PFAS in pesticides
News
28 Jun 2025 | Meg Wilcox
Blazer suspects that the PFAS pesticides are running off farm fields into waterways, where they may be contributing to a range of parasitic, viral and bacterial infections in fish that signal compromised immune functions.
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Investigation of Perfluorooctanesulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Isomer Profiles in Naturally Contaminated Food Samples
Science
25 Jun 2025 | J Agric Food Chem
Analysing PFOS- and PFOA-contaminated milk, deer meat, eggs and clams, FDA researchers found that calibrating with isomer-matched standards and quantifying branched and linear forms separately with a two-peak method decreased PFOS overestimation in branched-rich samples, while the distinctive isomer fingerprints traced some contamination to firefighting-foam runoff on dairy farms.
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New Mexico files new lawsuit against US Air Force over PFAS contamination
News
24 Jun 2025 | Source NM
The New Mexico environment and Department of Justice on Monday announced a new lawsuit against the U.S. Department of the Air Force seeking redress for PFAS contamination at Cannon Air Force Base near Clovis.
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Enhanced immobilisation of per-and polyfluoroalkyl substances (PFAS) using a combination of sorbents and plants: A controlled rainfall simulation study
Science
23 Jun 2025 | Sci. Total Environ.
Lab tests show that mixing PFAS-tainted soil with powdered activated carbon and planting hardy ryegrass on top prevented about 90% of the PFAS from being washed away by heavy rain, pointing to a simple, inexpensive way to keep PFAS out of nearby waterways.
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Association between exposure to bisphenols and per- and polyfluoroalkyl substances and behavioral problems among Chinese preschoolers
Science
23 Jun 2025 | Ecotoxicol Environ Saf
A study of 823 Chinese preschoolers found that children with higher combined urine levels of certain BPA-replacement plastics and PFHxS were about twice as likely to show behaviour issues, including hyperactivity, anxiety and conduct problems, highlighting that these may be regrettable substitutes.
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PFAS pollution risk grows as chemical companies ramp up production for AI chip demand
News
13 Jun 2025 | EHN
Semiconductor makers’ reliance on PFAS chemicals is spurring a new wave of pollution concerns as companies like Chemours and Daikin expand production to meet the artificial intelligence boom.
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North Georgia families sue over ‘catastrophic’ chemical contamination
News
13 Jun 2025 | Atlanta News First
A lawsuit filed Thursday accuses major carpet manufacturers and chemical makers of contaminating soil and water across north Georgia with toxic PFAS chemicals, exposing nearby families to what environmental experts are calling “catastrophic” levels of the dangerous substances.
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State updates fish advisories amid PFAS concerns in Southern Colorado waters
Policy
12 Jun 2025
New signs and state guidance urge anglers to check lake-specific advisories as “forever chemicals” raise long-term health risks.
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EPA restores $1.4M UMaine PFAS grant
Policy
12 Jun 2025
Almost a month after it was canceled, more than $1 million in EPA funding for the University of Maine is back.
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PFAS exposure before birth could put your teen at risk for high blood pressure, study finds
News
12 Jun 2025 | CNN
New data shows the synthetic compounds could also be linked to a teen’s risk of developing cardiovascular disease later in life, according to the study published Thursday in the Journal of the American Heart Association.
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Prenatal Per- and Polyfluoroalkyl Substance Exposures and Longitudinal Blood Pressure Measurements in Children Aged 3 to 18 Years: Findings From a Racially and Ethnically Diverse US Birth Cohort
Science
12 Jun 2025 | J Am Heart Assoc
Higher maternal blood levels of eight PFAS (Me-PFOSA-AcOH, PFDeA, PFHpS, PFHxS, PFNA, PFOA, PFOS and PFUnA) correlated with higher childhood blood-pressure readings, most noticeably during adolescence, in boys and in non-Hispanic Black youth, implying that prenatal exposure to these “forever chemicals” may increase long-term hypertension risk.
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Forever chemicals: Scientists condemn massive lobbying campaign to alter PFAS definition
News
10 Jun 2025 | Le Monde
In a letter published Tuesday in a scientific journal, a group of 20 researchers warn that 'this effort is politically and/or economically, rather than scientifically, motivated.'
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Scientists’ statement on the chemical definition of PFASs
Science
10 Jun 2025 | Environ. Sci. Technol. Lett.
The authors raise concerns about ongoing efforts to redefine PFAS and potentially exclude certain PFASs included under the 2021 OECD definition of PFAS chemicals. As there is no evidence to indicate that the OECD definition is flawed or problematic or ambiguous, there is no need for a new chemical definition.
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Particle and per-and polyfluoroalkyl substance (PFAS) concentrations from different types of fire extinguishers
Science
9 Jun 2025 | J. Hazard. Mater
Lab tests show that common foam fire extinguishers release PFAS in concentrations hundreds of times higher than powder or halon models—while powder units emit the most particles—highlighting the urgent need for safer foams and better protective gear.