Fate of ‘forever chemicals’ in the global cryosphere
18 Nov 2024 | Earth-Science Reviews
This review highlights the spread, accumulation, and release of PFAS in the cryosphere, including impacts from global warming, which poses significant ecological risks and harms biodiversity.
Study of Endocrine-Disrupting Chemicals in Infant Formulas and Baby Bottles: Data from the European LIFE-MILCH PROJECT
18 Nov 2024 | Molecules
Infant formulas and baby bottles were found to contain endocrine-disrupting chemicals, including PFAS such as PFOA, PFBS, PFDA, PFHxA, and PFHpA, along with phthalates, bisphenols, metals, and more, highlighting the need for stricter monitoring and public health interventions to protect infants.
Association between Exposure to Per- and Polyfluoroalkyl Substances and Missed Miscarriage: A Hospital-Based Case-Control Study in Shanghai, China
16 Nov 2024 | Environ Toxicol Pharmacol
Plasma concentrations of 13 PFAS, including PFOA, L-PFOS, and 6:2 Cl-PFESA were significantly associated with increased risk of miscarriage in women, with PFOA showing the strongest association, highlighting the reproductive risks linked to PFAS exposure.
Examining Disparities in PFAS Plasma Concentrations: Impact of Drinking Water Contamination, Food Access, Proximity to Industrial Facilities and Superfund Sites
14 Nov 2024 | Environ Res.
PFAS plasma levels were higher in individuals living near Superfund sites or PFAS-polluting facilities and in areas with low food access, with drinking water contamination contributing significantly to elevated plasma PFOS, PFOA, and PFHxS levels, highlighting disparities in PFAS exposure driven by industrial and socioeconomic factors.
Environmental Occurrence and Biotic Concentrations of Ultrashort-Chain Perfluoroalkyl Acids: Overlooked Global Organofluorine Contaminants
13 Nov 2024 | Environ Sci Technol
Ultrashort-chain perfluoroalkyl acids (PFAAs), including TFA, are widely present in the environment and living organisms, with rising concentrations over the past three decades, often exceeding those of longer-chain PFAAs in various ecosystems.
A Pilot Study of Bis-perfluoroalkyl Sulfonimides in Dust from E-waste and Urban Regions
12 Nov 2024 | Environ. Sci. Technol. Lett.
Dust samples from e-waste recycling sites showed significantly higher levels of bis-FMeSI (median 12 ng/g) compared to surrounding and urban areas, indicating e-waste recycling as a major source of environmental release for this emerging PFAS, which poses potential ecological and human health risks.
Permeation of Per-and Polyfluoroalkyl Substances (PFAS)-Laden Leachate in Landfills as an Outcome of Puncture Failures of High-Density Polyethylene Geomembranes
12 Nov 2024 | Environmental Pollution
Puncture failures in high-density polyethylene landfill liners increase the permeation of hazardous PFAS-laden leachate. Short-chain PFAS, due to their surfactant properties, significantly enhanced permeation rates, highlighting concerns over environmental contamination if proper landfill protections are not maintained.
Forever chemicals don't make hero mutant ninja turtles: Elevated PFAS levels linked to unusual scute development in newly emerged freshwater turtle hatchlings (Emydura macquarii macquarii) and a reduction in turtle populations
11 Nov 2024 | Sci Total Environ
Elevated PFAS exposure in freshwater turtles was linked to metabolic disruptions, deformities in hatchlings, altered egg biochemistry, and a decline in juvenile turtle populations, highlighting the urgent need for regulatory measures to address the environmental impact of these "forever chemicals."
Exposure to per- and polyfluoroalkyl substances (PFAS) in North Carolina homes: results from the indoor PFAS assessment (IPA) campaign
11 Nov 2024 | Environ Sci Process Impacts
Inhalation was the primary non-dietary indoor PFAS exposure for adults, while children are more exposed via ingestion of dust and hand-to-mouth behavior, with neutral PFAS being the dominant contributor.
A combinational threat of micro- and nano-plastics (MNPs) as potential emerging vectors for per- and polyfluoroalkyl substances (PFAS) to human health
8 Nov 2024 | Environ Monit Assess
Micro- and nano-plastics (MNPs) can carry harmful chemicals like PFAS. This review summarizes information regarding the environmental transport and interaction of MNPs and PFAS and the potential combined impacts on serious health problems such as liver damage, reproductive issues, and immune system disruptions in both humans and animals.
Exposure to and Transplacental Transfer of Per- and Polyfluoroalkyl Substances in a Twin Pregnancy Cohort in Korea
6 Nov 2024 | Environ Sci Technol
In twin pregnancies, higher levels of certain PFAS chemicals, like L-PFOS and PFOA, were found in the mothers' blood compared to their babies' cord blood. Differences in blood flow through the placenta were linked to varying PFAS levels between the twins, suggesting that the way these chemicals transfer from mother to baby can be affected by placental structure, potentially impacting health.
A Prospective Analysis of Per- and Polyfluoroalkyl Substances from Early Pregnancy to Delivery in the Atlanta African American Maternal-Child Cohort.
6 Nov 2024 | Environ Health Perspect
Some PFAS concentrations, such as PFHxS and PFOS, increased throughout pregnancy and varied significantly based on maternal and socioeconomic factors, with shorter-chain PFAS transferring more efficiently to newborns, demonstrating a need for tailored public health interventions to protect newborns.
Relationship between per-fluoroalkyl and polyfluoroalkyl substance exposure and insulin resistance in nondiabetic adults: Evidence from NHANES 2003-2018
5 Nov 2024 | Ecotoxicol Environ Saf
Higher exposure to PFAS chemicals, such as PFOS, PFOA, and MeFOSAA, is strongly associated with increased insulin resistance in adults, especially when measured by the TyG index, with the association stronger in younger individuals and those with higher BMI, emphasizing the health risks of PFAS exposure.
Leachability of per- and poly-fluoroalkyl substances from contaminated concrete
5 Nov 2024 | Environ Sci Process Impacts
PFAS chemicals, like PFOS and PFHxA, can leach significantly from concrete contaminated from use of aqueous film-forming foams at airports, defense, and port facilities, with leaching behavior influenced by factors like particle size, pH, and individual PFAS properties.
Neurotoxic Effects of Mixtures of Perfluoroalkyl Substances (PFAS) at Environmental and Human Blood Concentrations
4 Nov 2024 | Environ. Sci. Technol.
PFAS exposure has been linked to harmful health effects, including neurodevelopmental issues, with this research showing that mixtures of these substances can impair neuron growth at concentrations typically observed in the environment, highlighting the importance of assessing their combined risk.