ArticleEnvironmental health perspectives2022
Internal Relative Potency Factors for the Risk Assessment of Mixtures of Per- and Polyfluoroalkyl Substances (PFAS) in Human Biomonitoring.
Article in Environmental health perspectives, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
22 citing papers in PubMed, 41 citations in OpenAlex.
- PFOS exposure and periodontitis from adolescent burden to genetic and multiomics evidence.iScience · 2026Article
- Derivation of guidance values under the EU Drinking Water Directive : the case study of trifluoroacetic acid.Archives of toxicology · 2026Review
- Establishment and application of a QuEChERS-based high-performance liquid chromatography-mass spectrometry method for the analysis of 56 per- and polyfluoroalkyl substances in human plasma.Analytical and bioanalytical chemistry · 2026Article
- Per- and Polyfluoroalkyl Substance Exposure Associated with Later Puberty in Norwegian Girls: Data from the Bergen Growth Study 2.Environment & health (Washington, D.C.) · 2026Article
- Risk Assessment of Chemical Mixtures in Foods: A Comprehensive Methodological and Regulatory Review.Foods (Basel, Switzerland) · 2026Review
- Maternal, fetal, and neonatal toxicity and potency estimates of perfluorohexane sulfonate (PFHxS) from oral maternal exposure in the Sprague-Dawley rat.Toxicology · 2025Article
- A systems toxicology approach implicates post-transcriptional regulatory networks in reproductive defects from PFAS exposure.Toxicological sciences : an official journal of the Society of Toxicology · 2025Article
- Legacy, alternative, and precursor PFAS and associations with lipids and liver function biomarkers: results from a cross-sectional analysis of adult females in the MIREC-ENDO study.International journal of hygiene and environmental health · 2025Article
- Structure-specific variation in per- and polyfluoroalkyl substances toxicity among genetically diverse Caenorhabditis elegans strains.Toxicological sciences : an official journal of the Society of Toxicology · 2025Article
- Per- and Polyfluoroalkyl Substances and Outcomes Related to Metabolic Syndrome: A Review of the Literature and Current Recommendations for Clinicians.American journal of lifestyle medicine · 2025Review
- The use of canonical dose-response models for benchmark dose analysis of continuous toxicological data.Critical reviews in toxicology · 2025Review
- Exposure to Per- and Polyfluoroalkyl Substances and Timing of Puberty in Norwegian Boys: Data from the Bergen Growth Study 2.Environmental science & technology · 2024Article
- Zürich II Statement on Per- and Polyfluoroalkyl Substances (PFASs): Scientific and Regulatory Needs.Environmental science & technology letters · 2024Review
- Serum concentrations of legacy, alternative, and precursor per- and polyfluoroalkyl substances: a descriptive analysis of adult female participants in the MIREC-ENDO study.Environmental health : a global access science source · 2024Article
- Determination ofFrontiers in toxicology · 2024Article
- Dose additive maternal and offspring effects of oral maternal exposure to a mixture of three PFAS (HFPO-DA, NBP2, PFOS) during pregnancy in the Sprague-Dawley rat.The Science of the total environment · 2023Article
- A multi-tiered hierarchical Bayesian approach to derive toxic equivalency factors for dioxin-like compounds.Regulatory toxicology and pharmacology : RTP · 2023Article
- The EU's Per- and Polyfluoroalkyl Substances (PFAS) Ban: A Case of Policy over Science.Toxics · 2023Review
- Determination of in vitro hepatotoxic potencies of a series of perfluoroalkyl substances (PFASs) based on gene expression changes in HepaRG liver cells.Archives of toxicology · 2023Article
- Cumulative maternal and neonatal effects of combined exposure to a mixture of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) during pregnancy in the Sprague-Dawley rat.Environment international · 2022Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn human biomonitoring, blood is often used as a matrix to measure exposure to per- and polyfluoroalkyl substances (PFAS). Because the toxicokinetics of a substance (determining the steady-state blood concentration) may affect the toxic potency, the difference in toxicokinetics among PFAS has to be accounted for when blood concentrations are used in mixture risk assessment.
objectivesThis research focuses on deriving relative potency factors (RPFs) at the blood serum level. These RPFs can be applied to PFAS concentrations in human blood, thereby facilitating mixture risk assessment with primary input from human biomonitoring studies.
methodsToxicokinetic models are generated for 10 PFAS to estimate the internal exposure in the male rat at the blood serum level over time. By applying dose-response modeling, these internal exposures are used to derive quantitative internal RPFs based on liver effects.
resultsInternal RPFs were successfully obtained for nine PFAS. Perfluorobutanoic acid (PFBA), perfluorohexanoic acid (PFHxA), perfluorononanoic acid (PFNA), perfluorododecanoic acid (PFDoDA), perfluorooctane sulfonic acid (PFOS), and hexafluoropropylene oxide-dimer acid (HFPO-DA, or GenX) were found to be more potent than perfluorooctanoic acid (PFOA) at the blood serum level in terms of relative liver weight increase, whereas perfluorobutane sulfonic acid (PFBS) and perfluorohexane sulfonic acid (PFHxS) were found to be less potent. The practical implementation of these internal RPFs is illustrated using the National Health and Nutrition Examination Survey (NHANES) biomonitoring data of 2017-2018. DISCUSSION: It is recommended to assess the health risk resulting from exposure to PFAS as combined, aggregate exposure to the extent feasible. https://doi.org/10.1289/EHP10009.
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