Contact to perfluoroalkyl substances and thyroid health effects: A meta-analysis directing on pregnancy
4 Jan 2023 | Chemosphere
A systematic review found that PFOS, PFOA, and PFDA exposures were associated with thyroid disruption in pregnant women, who were more sensitive to PFAS exposure in the first six months of pregnancy.
Early-life exposure to per- and polyfluoroalkyl substances and infant gut microbial composition
3 Jan 2023 | Environ. Epi.
PFAS may increase infant gut microbiome diversity, which has been associated with an increased risk of infection.
Per- and polyfluoroalkyl substances (PFAS) in breast milk and infant formula: A global issue
3 Jan 2023 | Environ. Res.
Breast milk concentrations of PFOA and PFOS often exceed children’s drinking water screening values, and limited information on infant formula means that families cannot generally know whether their infant’s exposures exceed safe levels.
Analytical method interferences for perfluoropentanoic acid (PFPeA) and perfluorobutanoic acid (PFBA) in biological and environmental samples
30 Dec 2022 | Chemosphere
Researchers recommend adjustments to analytical methods investigating PFBA and PFPeA due to chemical interferences from fatty acids in biological and environmental samples.
A systematic evidence map of chronic inflammation and immunosuppression related to per-and polyfluoroalkyl substance (PFAS) exposure
30 Dec 2022 | Environ Res
Several PFAS commonly found in the environment may induce immunosuppression and chronic inflammation, two key characteristics of carcinogens.
Concentrations of Per- and Polyfluoroalkyl Substances in Paired Maternal Plasma and Human Milk in the New Hampshire Birth Cohort
27 Dec 2022 | Environ Sci Technol
Maternal PFOA and PFOS serum concentrations correlated with milk concentrations, and while milk concentrations were lower, about 6.5% of infants were estimated to be exposed to enough PFAS via milk to have long-term health impacts.
Locally caught freshwater fish across the United States are likely a significant source of exposure to PFOS and other perfluorinated compounds
27 Dec 2022 | Environ Res
PFAS are widely detected in freshwater fish across the United States at very high concentrations and fish may be a main source of exposure, especially for communities that depend on fish for sustenance and traditional cultural practices. For example, PFOS exposure from one average serving of freshwater fish is equivalent to one month of exposure from drinking water with 48 ppt PFOS.
Perfluoroalkyl substances exposure in firefighters: Sources and implications
27 Dec 2022 | Environ Res
This article summarizes the history of AFFF use by firefighters and describes PFAS exposure and removal pathways, PFAS accumulation in blood serum of firefighters, and occupational factors affecting PFAS levels in firefighters, all of which may influence how firefighters have elevated risks of developing thyroid, kidney, testicular, and prostate cancer.
Does Using Corsi–Rosenthal Boxes to Mitigate COVID-19 Transmission Also Reduce Indoor Air Concentrations of PFAS and Phthalates?
23 Dec 2022 | ES&T
Inexpensive, DIY HEPA filtration systems traditionally used to reduce harms from COVID and air pollution were found to also reduce PFAS and phthalate exposure in university buildings.
Perfluoroalkyl Substance Serum Concentrations and Cholesterol Absorption-Inhibiting Medication Ezetimibe
19 Dec 2022 | toxics
A medication that inhibits cholesterol absorption did not appear to affect serum PFAS concentrations, suggesting that inter-individual sterol absorption differences do not provide a confounding factor explanation for the known association between serum cholesterol and serum PFAS.
Accumulation and transport of atmospherically deposited PFOA and PFOS in undisturbed soils downwind from a fluoropolymers factory
19 Dec 2022 | Adv. Environ.
PFAS contaminates soil in urban, industrialized areas through atmospheric deposition, where it can penetrate through the soil and pollute groundwater.
Changes in perfluoroalkyl substances (PFAS) concentrations in human milk over the course of lactation: A study in Ronneby mother-child cohort
15 Dec 2022 | Environ Res
PFOA concentrations in breast milk decreased over the course of lactation by 12% per month, while PFOS and PFHxS showed small changes.
[Perspective] Tribal Water Issues Exemplified by the Navajo Nation
14 Dec 2022 | EHP
Mining-related contamination is one of the better-known problems in Navajo water, but other drinking water contaminants, such as PFAS, are understudied on Tribal lands and any regulations should consider Navajo principles and sovereignty.
Federal PFAS Testing and Tribal Public Water Systems
14 Dec 2022 | EHP
Assessing and managing environmental health risks must incorporate culturally significant practices and traditional ecological knowledge, as well as Tribally defined boundaries and traditional hunting and fishing areas in addition to adequate testing.
Cross-sectional associations of maternal PFAS exposure on SARS-CoV-2 IgG antibody levels during pregnancy
14 Dec 2022 | Environ Res
PFAS, including short-chain emerging PFAS, act as immunosuppressants during pregnancy.