Showing 631-645 of 1061
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Stability of Per- and Polyfluoroalkyl Substances in Solvents Relevant to Environmental and Toxicological Analysis
Science
9 Nov 2021 | Environ Sci Technol
Common solvents were found to degrade PFAS during chemical analysis, potentially corrupting results.
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Emerging investigator series: human CYP2A6 catalyzes the oxidation of 6:2 fluorotelomer alcohol
Science
9 Nov 2021 | Environ Sci Process Impacts
An enzyme was found to play an important role in the indirect human exposure to bioactive and persistent PFCAs which are metabolites of 6:2 fluorotelomer alcohol.
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Exposure to perfluoroalkyl substances in waste recycling workers: Distributions in paired human serum and urine
Science
9 Nov 2021 | Environ Int
The results of this study suggest that sorters at recycling facilities may be directly exposed to PFAS and is the first to detect PFPAs in human urine.
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Engineering human liver fatty acid binding protein for detection of poly- and perfluoroalkyl substances
Science
9 Nov 2021 | Biotechnol Bioeng
A novel method of detecting selected PFAS in water (at parts per billion or million levels) by using human liver proteins was developed and implemented in field applications.
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Millions consuming 'invisible toxic cocktail' of cancer-linked chemicals: study
News
3 Nov 2021 | The Hill
Millions of Americans are unknowingly ingesting water that includes “an invisible toxic cocktail” of cancer-linked chemicals, a new survey of the nation’s tap water has found.
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Analytical uncertainties in a longitudinal study - A case study assessing serum levels of per- and poly-fluoroalkyl substances (PFAS)
Science
2 Nov 2021
PFAA precursors were most likely to be the primary contaminant in AFFF-impacted surface soils.
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Detection of long chain per- and polyfluoroalkyl substances (PFAS) in the benthic Golden tilefish (Lopholatilus chamaeleonticeps) and their association with microscopic hepatic changes
Science
2 Nov 2021 | Sci Total Environ
PFAS exposure was found to be possibly detrimental to bottom-dwelling aquatic species.
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Analytical uncertainties in a longitudinal study - A case study assessing serum levels of per- and poly-fluoroalkyl substances (PFAS)
Science
2 Nov 2021 | Int J Hyg Environ Health
The variance between sample collection was found to be an important consideration affecting long-term PFAS studies.
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Early-Life Exposure to Per- and Poly-Fluorinated Alkyl Substances and Growth, Adiposity, and Puberty in Children: A Systematic Review
Science
27 Oct 2021 | Front Endocrinol (Lausanne)
Children that are exposed to PFAS were found to have altered hormone and endocrine systems at various stages of their development.
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Application of a Framework for Grouping and Mixtures Toxicity Assessment of PFAS: A Closer Examination of Dose-Additivity Approaches
Science
21 Oct 2021 | SOT
This article presents a new and systematic analysis of available PFAS toxicity study data using a tiered mixtures risk assessment framework consistent with the United States and international mixtures guidance.
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Association between the total plasma isomers of per- and polyfluoroalkyl substances and erythrograms in young and middle-aged Taiwanese populations.
Science
14 Oct 2021 | Ecotoxicol Environ Saf
PFOA and PFOS isomers may increase the weight and volume of red blood cells.
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Concentration profiles of per- and polyfluoroalkyl substances in major sources to the environment
Science
12 Oct 2021 | J. Environ. Manage.
Precursor biotransformation products are detected in landfill leachates and wastewater-related sources.
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Information Requirements under the Essential-Use Concept: PFAS Case Studies
Science
11 Oct 2021 | Environ Sci Technol
An investigation into how much information is available on the types and functions of PFAS in specific uses, how much information is available on alternatives, their performance and hazardous properties, and whether this information is sufficient as a basis for deciding on the essentiality of a PFAS use, was conducted.
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Per- and Polyfluoroalkyl Substances (PFAS) in Street Sweepings
Science
5 Oct 2021 | Environ Sci Technol
In different cities, the dominant PFAS by concentration and frequency of detection varied; however, PFOA and linear PFOS were the two PFAS that were detected the most frequently.
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Occurrence of selected per- and polyfluorinated alkyl substances (PFASs) in food available on the European market - A review on levels and human exposure assessment
Science
5 Oct 2021 | Chemosphere
Fruits and vegetables recently showed relatively high levels of PFASs, and have become a more significant source of PFASs than meat.