Occurrence and Fate of Per-and Polyfluoroalkyl Substances (PFAS) in Atmosphere: Size-Dependent Gas-Particle Partitioning, Precipitation Scavenging, and Amplification
16 May 2024 | Environ. Sci. Technol.
Researchers in Shijiazhuang, China examined the distribution of PFAS in the atmosphere, finding that FCAs were the most prevalent, with their concentrations linked to the organic matter fraction across various particle sizes. Temperature influenced gas-particle partitioning and precipitation played a key role in removing PFAS from the atmosphere, despite temporary increases during rainfall events.
The Ins and Outs of Per-and Polyfluoroalkyl Substances in the Great Lakes: The Role of Atmospheric Deposition
16 May 2024 | Environmental Science and Technology
Air, water, and precipitation samples from the Great Lakes region revealed varying levels of PFAS, with atmospheric deposition as a significant PFAS source to the lakes. Mass transfer analysis suggests net accumulation of PFAS in northern lakes and elimination in southern ones.
Considerations and challenges in support of science and communication of fish consumption advisories for per- and polyfluoroalkyl substances
16 May 2024 | Integr Environ Assess Manag
Inconsistent state guidelines for environmental contaminants for PFAS create challenges for public health agencies. The authors therefore call for unified, science-based approaches to improve risk assessment and communication.
PFAS-Contaminated Pesticides Applied near Public Supply Wells Disproportionately Impact Communities of Color in California
14 May 2024 | ACS ES&T Water
Communities of Color in California face a higher risk of PFAS contamination in drinking water due to disproportionate pesticide applications near their water sources, highlighting the need for increased PFAS monitoring and remediation in these areas.
Investigation of the Link between Per- and Polyfluoroalkyl Substances and Stress Biomarkers in Bottlenose Dolphins
14 May 2024 | Environ Sci Technol
Exposure to various PFAS chemicals in bottlenose dolphins from South Carolina and Florida correlates with changes in stress-related cortisol levels, suggesting PFAS may impact their stress response and highlighting the need for further long-term research.
Association of diet with per- and polyfluoroalkyl substances in plasma and human milk in the New Hampshire Birth Cohort Study
11 May 2024 | Sci Total Environ
Certain dietary factors during pregnancy, such as increased consumption of fish/seafood, eggs, coffee, or white rice, were found to be associated with higher concentrations of PFAS in both maternal plasma and human milk, indicating the importance of understanding food-related sources of PFAS exposure for pregnant individuals and their offspring. Fruit, whole grain, and fiber consumption was associated with lower levels of PFAS in maternal plasma.
Per-and Polyfluoroalkyl Substances (PFAS) in Construction and Demolition Debris (CDD): Discerning Sources and Fate During Waste Management
10 May 2024 | J Hazard Mater
Sampling at a construction and demolition debris processing facility revealed elevated PFAS concentrations in materials like carpeting and drywall, raising concerns about leaching from landfills in light of limited oversight.
Can Bees Detect Perfluorooctane Sulfonate (PFOS)?
9 May 2024 | Environ Toxicol Chem
Bee behavior testing revealed that bees avoid syrup spiked with high levels of PFOS when given a choice between contaminated and uncontaminated food. This may have implications for bee health, pollination, and human health as PFOS has been detected in honey.
Total and Class-Specific Determination of Fluorinated Compounds in Consumer and Food Packaging Samples Using Fluorine-19 Solid-State Nuclear Magnetic Resonance Spectroscopy
8 May 2024 | Anal Chem
Hamburger wrapping paper was tested for PFAS using total organic fluorine (TOF) and fluorine-19 solid-state nuclear magnetic resonance (19F ss-NMR) spectroscopy, revealing limitations in TOF's accuracy due to extraction variability and highlighting the abilities of 19F ss-NMR to directly detect PFAS in food packaging.
Per- and polyfluoroalkyl substances (PFAS) and fetal growth: A nation-wide register-based study on PFAS in drinking water
8 May 2024 | Environ Int
A nationwide study in Sweden found no clear link between maternal exposure to certain PFAS during pregnancy and newborn birthweight or risk of being small-for-gestational-age, but did find a slight increase in the risk of being large-for-gestational-age, particularly associated with PFOS.
Unregulated contaminants in drinking water: Evidence from PFAS and housing prices
6 May 2024 | JEEM
Public awareness of unregulated PFAS contamination in drinking water significantly decreases property values of affected homes, potentially exacerbating environmental inequality through residential sorting.
[Report] Ronneby PFAS Research Programme
6 May 2024
A decade of research on PFAS exposure through drinking water in a Swedish municipality confirms known risks like elevated cholesterol and kidney cancer while uncovering new ones such as osteoporosis fractures, diabetes, PCOS, and language disorders in children, highlighting the need for further investigation.
Distribution of Per-and Polyfluoroalkyl Substances (PFASs) in a Waste-to-Energy Plant - Tracking PFASs in Internal Residual Streams
30 Apr 2024 | ES&T
PFAS were detected in all Waste-to-Energy plant residues except for boiler ash, with wet flue gas treatment reducing PFAS levels by 35% ± 10%, indicating that there is still a need for a safe disposal method of products containing PFAS.
Assessment and Comparison of Early Developmental Toxicity of Six Per- and Polyfluoroalkyl Substances with Human Embryonic Stem Cell Models
30 Apr 2024 | Environ Sci Technol
Six PFAS compounds were found to disrupt cell fate determination, cilia formation, and gene expression in human embryonic stem cell models, signaling potential adverse health effects on early embryonic development.
Associations between serum perfluoroalkyl and polyfluoroalkyl concentrations and diabetes mellitus in the Korean general population: Insights from the Korean National Environmental Health Survey 2018-2020
26 Apr 2024 | Int J Hyg Environ Health
PFAS exposure and prediabetes risk in the general Korean population was found to have a significant positive association between specific PFAS compounds, such as PFHxS and PFOS, and the risk of pre-diagnostic diabetes and prediabetes.