Investigation of Perfluorooctanesulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Isomer Profiles in Naturally Contaminated Food Samples
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.
Enhanced immobilisation of per-and polyfluoroalkyl substances (PFAS) using a combination of sorbents and plants: A controlled rainfall simulation study
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.
Assessing contamination and risk profiles of per-and polyfluoroalkyl substances across various types of water in South Africa: trends over the past decade (2014–2024)
23 Jun 2025 | Emerging Contaminants
Across South Africa, surface waters and wastewater often contain PFOA and other PFAS at levels as high as 420 ng/L, creating serious ecological risks even though indirect human exposure through irrigated crops is currently minimal, underscoring the need for tougher regulation and better water treatment.
Association between exposure to bisphenols and per- and polyfluoroalkyl substances and behavioral problems among Chinese preschoolers
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.
Chronic PFAS exposure induces chemotherapy resistance by promoting mitochondria-related alterations in ovarian cancer cells
21 Jun 2025 | Environmental Research
Chronic exposure to PFAS made ovarian cancer cells more resistant to chemotherapy by altering their mitochondria, leading to higher indices of resistance against drugs like carboplatin and doxorubicin.
Associations Between Endocrine-Disrupting Chemical Exposure and Fertility Outcomes: A Decade of Human Epidemiological Evidence
21 Jun 2025 | Life (Basel)
A review of 14 recent human studies shows that everyday hormone-disrupting chemicals such as BPA, phthalates and PFAS consistently correlate with lower sperm quality, disrupted female hormones, infertility and poorer in vitro fertilization outcomes, highlighting the importance of reducing exposure.
Chrome Plating Facility Siting Is Associated with Neighborhood Demographic and Socioeconomic Factors and Elevated Per- and Polyfluoroalkyl Substances in Blood in California
16 Jun 2025 | Environ Sci Technol
Residents living within 3 km of California chrome-plating shops showed markedly higher blood concentrations of specific plating-related PFAS—including PFOS, PFHxS, PFOA, PFHpS and PFPeS, underscoring how these mist-suppressant chemicals disproportionately burden nearby lower-income, largely Hispanic communities.
Heavier sediment pollution by per-and polyfluoroalkyl substances (PFASs) in tropical coasts compared to temperate regions: An overlooked hotspot
14 Jun 2025 | J. Environ. Sci.
Sediments along a tropical Chinese coastline contain markedly higher levels of both legacy and emerging PFAS, reaching about 13 ng/g dry weight and dominated by mid-chain compounds such as PFHxA and 9H-PFNA, a concentration exceeding those typically reported for temperate regions; researchers trace the pollution to land-based runoff, rocket-launch fallout, and other local sources.
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
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.
Scientists’ statement on the chemical definition of PFASs
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.
Particle and per-and polyfluoroalkyl substance (PFAS) concentrations from different types of fire extinguishers
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.
Long term trends of legacy per-and polyfluoroalkyl substances (PFAS), their substitutes and precursors in archived wildlife samples from the German Environmental Specimen Bank
9 Jun 2025 | Environ Int.
Decades of German wildlife records show that although banned C8 PFAS like PFOS have decreased, they are still persistent in gull eggs and fish livers, while longer-chain PFAS and newer short- and ultrashort-chain substitute levels are now increasing.
[Opinion] PFAS are widespread, not ubiquitous: Clarifying misconceptions about the prevalence of “forever chemicals”
9 Jun 2025 | Environ. Sci. Technol.
U.S. Geological Survey researchers explain that PFAS occur widely but not literally everywhere on Earth, urging scientists and journalists to replace the term “ubiquitous” with the more accurate term “widespread.”
Burden of per- and polyfluoroalkyl substances (PFAS) in human breast milk: Implications for maternal and infant health
7 Jun 2025 | Environ Int
Analyzing pooled breast-milk samples from five UN regions, researchers estimate that up to 24 % of mothers and 17 % of babies already exceed plasma levels of PFHxS and PFNA linked to endocrine, immune and developmental harm.
Decorative cosmetics and skin care products contribute significantly to short-chain perfluoroalkyl carboxylates exposure
5 Jun 2025 | J Hazard Mater
Tests on 3-D human skin models show that decorative cosmetics and skin-care products permit short-chain PFAS, such as by PFBA, to pass through skin efficiently, pushing daily intakes up to about 0.8 ng per kilogram of body weight and making dermal contact responsible for roughly 40 % of total PFOA exposure among regular users, findings that strengthen the case for tighter limits on PFAS in personal-care items.