Latest Science
Per-and polyfluoroalkyl substances (PFAS) in drinking water in Southeast Los Angeles: Industrial legacy and environmental justice
16 Sep 2024 | Sci. Total Environ.
PFAS were detected in 30% of tap water samples from California, with the highest concentrations found in low-income, predominantly Latino communities in heavily industrialized areas of Southeast Los Angeles, highlighting the need for improved water testing and regulations to protect vulnerable populations.
Development, validation, and clinical assessment of a liquid chromatography-tandem mass spectrometry serum assay for per- and polyfluoroalkyl substances (PFAS) recommended by the National Academies of Science, Engineering, and Medicine (NASEM)
13 Sep 2024 | Anal Bioanal Chem
In 2022, new guidelines recommended measuring nine PFAS compounds in blood, and in this study, 82.2% of samples had concentrations between 2 and 20 ng/mL, with a lower median PFAS level than previous national surveys, indicating a potential decrease in exposure or differences in population exposure patterns over time.
Maternal Exposure to Per- and Polyfluoroalkyl Substances and Offspring Chromosomal Abnormalities: The Japan Environment and Children's Study
11 Sep 2024 | Environ Health Perspect
Maternal exposure to certain PFAS chemicals, particularly PFOS, may be associated with an increased risk of chromosomal abnormalities in offspring, though further research is needed due to potential selection bias.
Have per and polyfluoroalkyl substances (PFAS) infiltrated Florida's freshwater springs?
9 Sep 2024 | Sci. Total Environ.
PFAS chemicals were detected in over 60% of water samples from Florida's freshwater springs, raising concerns about potential health risks for those relying on these springs for drinking water, and highlighting the need for further research on contamination pathways.
It’s raining PFAS in South Florida: Occurrence of per-and polyfluoroalkyl substances (PFAS) in wet atmospheric deposition from Miami-Dade, South Florida
9 Sep 2024 | Atmos. Pollut. Res.
Rainwater in Florida contained significant levels of PFAS chemicals, including PFBA, PFNA, PFOS, and PFOA, particularly during the dry season, and analysis suggested both local and distant sources of contamination.
Association between family economic situation and serum PFAS concentration in American adults with hypertension and hyperlipemia.
5 Sep 2024 | Sci Rep
Higher household income in adults with high cholesterol and related conditions was associated with increased blood levels of PFAS, with obesity significantly influencing this connection.
Assessment of Per-and Polyfluoroalkyl Substances (PFAS) in Traditional, Organic and Protein Flours
3 Sep 2024 | Exposure and Health
Flours, including traditional, organic, and protein varieties, contain detectable levels of specific PFAS like PFOA and PFDA, potentially contributing significantly to overall PFAS exposure, yet current regulations lack specific safety limits for these contaminants in flours.
The unique distribution pattern of PFAS in landfill organics
3 Sep 2024 | J. Hazard. Mater.
PFAS chemicals from decomposing landfill waste predominantly accumulate at middle depths within a landfill, with a strong correlation between total PFAS, total carbon, and dissolved organic matter in landfill organics.
Exposure to Per- and Polyfluoroalkyl Substances and Timing of Puberty in Norwegian Boys: Data from the Bergen Growth Study 2
3 Sep 2024 | Environ Sci Technol
Higher levels of PFAS chemicals, including PFOS, PFOA, PFNA, and PFHxS, were associated with delayed puberty in Norwegian boys, as measured by testicular volume and testosterone levels, with some PFAS showing stronger links to later pubertal onset.
Silicone Wristbands as a Personal Passive Sampler to Evaluate Indoor Exposure to Volatile and Non-volatile PFASs.
3 Sep 2024 | Environ Sci Technol
Silicone wristbands were used to measure personal exposure to PFAS chemicals, with gender, age, and time spent at home influencing individual exposure levels. For some PFAS, indoor air and skin contact were found to be significant sources of exposure.
Exposure to per- and polyfluoroalkyl substances is associated with impaired cardiovascular health: a cross-sectional study
29 Aug 2024 | Front Public Health
Exposure to PFNA, PFOA, and PFOS was associated with an increased risk of impaired cardiovascular health in U.S. adults.
Identification of Emerging Per-and Polyfluoroalkyl Substances (PFAS) in E-waste Recycling Practices and New Precursors for Trifluoroacetic Acid
23 Aug 2024 | Environ. Sci. Technol.
Soil samples from e-waste recycling sites in Pakistan revealed significant PFAS contamination, dominated by trifluoroacetic acid (TFA) and 6:2 fluorotelomer sulfonic acid, with concentrations up to 367 ng/g, indicating substantial environmental impact from these hazardous recycling practices.
Asthma and Decreased Lung Function in Children Exposed to Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs): An Updated Meta-Analysis Unveiling Research Gaps
23 Aug 2024 | Environ. Res.
Exposure to PFOA is associated with a higher risk of asthma in children, while PFOS does not show a clear link to decreased lung function. Further research with larger and more consistent studies is needed to better understand these relationships and their underlying mechanisms.
Concentration and human health risk attribute to per-and polyfluoroalkyl substances in fillet of carp and tilapia fish: systematic review and meta-analysis
22 Aug 2024 | J. Food Compos. Anal.
The meta-analysis revealed that PFAS concentrations are highest in tilapia (193.45 µg/kg) and carp (47.17 µg/kg) from China, with the highest non-carcinogenic risk from PFAS consumption for adults also observed in China; risk levels in other countries are notably lower, though ongoing monitoring is needed.
The perfluorooctanoic acid accumulation and release from pipelines promoted growth of bacterial communities and opportunistic pathogens with different antibiotic resistance genes in drinking water
22 Aug 2024 | J Hazard Mater
PFOA promotes the growth of harmful bacteria and the spread of antibiotic resistance genes in drinking water by enhancing bacterial metabolism, increasing protective substances, and facilitating gene transfer, leading to serious health risks.