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Perfluoroalkyl Acids: A Review of Monitoring and Toxicological Findings
Abstract
In recent years, human and wildlife monitoring studies have identified perfluoroalkyl acids (PFAA) worldwide. This has led to efforts to better understand the hazards that may be inherent in these compounds, as well as the global distribution of the PFAAs. Much attention has focused on understanding the toxicology of the two most widely known PFAAs, perfluorooctanoic acid, and perfluorooctane sulfate. More recently, research was extended to other PFAAs. There has been substantial progress in understanding additional aspects of the toxicology of these compounds, particularly related to the developmental toxicity, immunotoxicity, hepatotoxicity, and the potential modes of action. This review provides an overview of the recent advances in the toxicology and mode of action for PFAAs, and of the monitoring data now available for the environment, wildlife, and humans. Several avenues of research are proposed that would further our understanding of this class of compounds.
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“While potentially important for BDE-47, an increase in xenobiotic metabolism is not likely to be relevant for PFOS concentrations in the body, as PFAAs are resistant to enzymatic metabolism (Kudo and Kawashima, 2003; Lau et al., 2007).”
From A Critical Review and Meta-Analysis of Impacts of Per- and Polyfluorinated Substances on the Brain and Behavior (2022) · cites this paper as Lau et al., 2007
In the citing paper
“Some of these compounds, e.g., perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), have been recognized as pollutants because of their environmental persistence and toxicity.”
From Non-Target and Suspect Screening of Per- and Polyfluoroalkyl Substances in Airborne Particulate Matter in China (2018) · cites this paper as [5]
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“Also of note was the lack of any PFAS with a liver toxicity signature assigned for both sample replicates at any concentration although liver toxicity in animals has been associated with a number of PFAS including PFOA and PFOS (Lau et al., 2007).”
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Metadata
- Authors
- Lau, C., Anitole, K., Hodes, C., Lai, D., Pfahles-Hutchens, A., & Seed, J.
- Affiliations
- Environmental Protection Agency (US)
- Corresponding author
- Seed, Jennifer
- ORCID
- Lau, Christopher
- Venue
- Toxicological Sciences
- Publisher
- Oxford University Press (OUP)
- Published
- 2007-05-22
- Volume
- 99
- Issue
- 2
- Pages
- 366-394
- ISSN
- 1096-0929 (ISSN-L)
- 1096-6080
- OpenAlex
- W2167567374
- Cited by
- 2,620
- References
- 18
- Citations by year
- 2026: 108 · 2025: 122 · 2024: 140 · 2023: 134 · 2022: 138 · 2021: 174 · 2020: 161 · 2019: 144 · 2018: 137 · 2017: 176 · 2016: 142 · 2015: 127 · 2014: 160 · 2013: 164 · 2012: 140
- FWCI
- 7.50
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Toxicological Sciences (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
- Physical Sciences › Chemistry › Organic Chemistry › Fluorine in Organic Chemistry
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
- Keywords
- perfluoroalkyl acids, perfluorooctanoic acid, PFOS, developmental toxicity, immunotoxicity, hepatotoxicity, mechanism of action, environmental monitoring, wildlife exposure, human exposure, global distribution
- MeSH terms
- Abnormalities, Drug-Induced, Animals, Environmental Monitoring, Female, Fetus, Fluorocarbons, Hormones, Humans, Immune System, Liver, Male
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