On the fluoropolymers and ultra-short PFAS topic: Aqueous Leaching of Ultrashort-Chain PFAS from (Fluoro)polymers: Targeted and Nontargeted Analysis
19 Feb 2024 | ES&T Letters
All tested fluoropolymers, as well as non-fluorinated alternatives like PEEK, were found to leach C2-C4 PFCAs, likely related to their production such as processing aids, residuals, and inhibitors. This indicates that fluoropolymers and other plastics can emit short chain PFAS into the environment.
Reproductive toxicity of PFOA, PFOS and their substitutes: A review based on epidemiological and toxicological evidence
17 Feb 2024 | Environ Res
PFAS are widely recognized for their reproductive toxicity, with substitutes proving equally or more harmful; this review covers potential reproductive toxicity mechanisms for PFAS in both males and females.
Transport and health risk of legacy and emerging per-and polyfluoroalkyl substances in the water cycle in an urban area, China: Polyfluoroalkyl phosphate esters are of concern
16 Feb 2024 | Sci Total Environ
PAPs are a harmful group of PFAS that cannot easily be removed by drinking water treatment, and were found to be transported via precipitation more than municipal wastewater discharge.
Occurrence, bioaccumulation and trophic dynamics of per- and polyfluoroalkyl substances in two tropical freshwater lakes
14 Feb 2024 | Environ Pollut
PFAS were measured in different fish species in two lakes in Nigeria, identifying the presence of novel PFAS, diSAMPAP and 9CL-PF3ONS, and documenting the role of urbanization on PFAS in the environment for the first time in Africa.
Association between per- and polyfluoroalkyl substances exposure and thyroid function biomarkers among females attending a fertility clinic
11 Feb 2024 | Environ Pollut
PFAS were linked to changes in thyroid function in pregnant women, with particularly noticeable effects in females seeking fertility treatment, suggesting thyroid disruption by these chemicals among this vulnerable group.
Development of a method using QuEChERS and LC–MS/MS for analysis of per-and polyfluoroalkyl substances in rice matrix
10 Feb 2024 | Food Chemistry
To ensure food safety, a method combining QuEChERS extraction and LC-MS/MS was developed to detect 35 PFAS in rice, finding that instant rice microwaved in its packaging had lower PFAS levels compared to instant rice boiled in its packaging.
Associations of per- and polyfluoroalkyl substances with maternal metabolic and inflammatory biomarkers in early-to-mid-pregnancy
10 Feb 2024 | Environ Res
Exposure to PFAS during early-to-mid pregnancy was associated with decreased insulin levels, increased HDL cholesterol, and alterations in inflammatory markers, suggesting potential metabolic and inflammatory disruptions that may impact maternal and fetal health.
[Report] Guide to per-and polyfluoroalkyl substances (PFAS) sampling within Natural Resource Damage Assessment and Restoration
8 Feb 2024 | USGS
This guide aims to provide fundamental concepts and considerations involved with environmental sampling for PFAS during site assessments.
Expanded Systematic Evidence Map for Hundreds of Per- and Polyfluoroalkyl Substances (PFAS) and Comprehensive PFAS Human Health Dashboard.
6 Feb 2024 | Environ Health Perspect
This paper describes the development of a PFAS dashboard that provides researchers and regulators an overview of the current knowledge and data gaps on PFAS effects on human health.
Perfluorooctanesulfonic acid (PFOS) disrupts cadherin-16 in the developing rat thyroid gland
6 Feb 2024 | Curr Res Toxicol
PFOS exposure in rodents may disrupt thyroid hormone system development, potentially affecting growth and neurodevelopment, as evidenced by altered gene expression patterns in hormone levels and follicular integrity.
[Opinion] The Need to Include a Fluorine Mass Balance in the Development of Effective Technologies for PFAS Destruction
5 Feb 2024 | Environ. Sci. Technol.
Emerging technologies aimed at destroying PFAS in the environment pose challenges due to the potential formation of unintended transformation products, emphasizing the need for comprehensive monitoring methods and a unified terminology in PFAS destruction research.
Techniques to Characterize PFAS Burden in Biological Samples: Recent Insights and Remaining Challenges
5 Feb 2024 | Trends Environ. Anal. Chem.
Advancements in PFAS analysis reveal a significant portion of total organofluorine in biological samples remains unidentified, prompting efforts to develop additional analytical approaches such as advanced separation and semi-quantitation methods.
Distribution and release of PFAS from AFFF-impacted asphalt: How does it compare to concrete?
5 Feb 2024 | J. Hazard. Mater.
AFFF-impacted asphalt and concrete were found to potentially leach PFAS into the environment, with 6:2 FTS and PFOS identified as the dominant PFAS in the surface layer and runoff, asphalt exhibited a higher release rate compared to concrete.
[Discussion] Estimated scale of costs to remove PFAS from the environment at current emission rates.
5 Feb 2024 | Sci Total Environ
The significant costs associated with removing and destroying PFAS at the same rate they are currently introduced into the environment – over 100 trillion USD – underscores the urgent need for substantial reductions in production and emissions to address environmental and health concerns effectively.
Extraordinary levels of per- and polyfluoroalkyl substances (PFAS) in vertebrate animals at a new Mexico desert oasis: Multiple pathways for wildlife and human exposure
5 Feb 2024 | Environ Res
PFAS contamination at Holloman Air Force Base in New Mexico has significantly impacted wildlife populations, with high levels found in the tissues of 23 species of mammals and migratory birds, highlighting the widespread contamination of local food webs and potential risks for both wildlife and humans consuming game meat in this specific area.