Evidence map›Paper›PMID 37801709›Full record

ArticleEnvironmental science & technology2023

Estimation of the Half-Lives of Recently Detected Per- and Polyfluorinated Alkyl Ethers in an Exposed Community.

Dylan J Wallis, Nadine Kotlarz, Detlef R U Knappe, David N Collier, C Suzanne Lea, David Reif, James McCord, Mark Strynar, Jamie C DeWitt, Jane A Hoppin

Open access · greenAbstract read
In one paragraph

Article in Environmental science & technology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.5field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 31 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Dylan J WallisNorth Carolina State University, Raleigh, North Carolina 27695, United States.ORCID 0000-0003-1488-8058
Nadine KotlarzNorth Carolina State University, Raleigh, North Carolina 27695, United States.ORCID 0000-0002-7302-9176
Detlef R U KnappeNorth Carolina State University, Raleigh, North Carolina 27695, United States.ORCID 0000-0003-1315-1791
David N CollierCenter for Human Health and the Environment, NC State, Raleigh, North Carolina 27695, United States.
C Suzanne LeaCenter for Human Health and the Environment, NC State, Raleigh, North Carolina 27695, United States.
David ReifNorth Carolina State University, Raleigh, North Carolina 27695, United States.
James McCordU.S. Environmental Protection Agency, Triangle Research Park, North Carolina 27709, United States.ORCID 0000-0002-1780-4916
Mark StrynarU.S. Environmental Protection Agency, Triangle Research Park, North Carolina 27709, United States.ORCID 0000-0003-3472-7921
Jamie C DeWittCenter for Human Health and the Environment, NC State, Raleigh, North Carolina 27695, United States.
Jane A HoppinNorth Carolina State University, Raleigh, North Carolina 27695, United States.ORCID 0000-0001-8456-0969
North Carolina State University · USEast Carolina University · USEnvironmental Protection Agency · US

Funding

Translational Research Support CoreP30ES025128 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI Sue Fenton · 2015 to 2026
$18.3M
Uncovering the Mechanisms of PFAS-induced ImmunotoxicityP42ES031009 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI HOPPIN, JANE · 2020 to 2024
$9.3M
TRAINING IN BIOCHEMICAL AND ENVIRONMENTAL TOXICOLOGYT32ES007046 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI Seth William Kullman · 1985 to 2026
$5.1M
Assessing impact of drinking water exposure to GenX (hexafluoropropylene oxide dimer acid) in the Cape Fear River Basin, North CarolinaR21ES029353 · NIEHS · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI HOPPIN, JANE · 2018 to 2019
$702k
Intramural EPA EPA999999NIEHS NIH HHS P30 ES025128NIEHS NIH HHS P42 ES031009NIEHS NIH HHS R21 ES029353NIEHS NIH HHS T32 ES007046
6 · The paper itself

Abstract

To estimate half-lives for novel fluoroethers, the GenX Exposure Study obtained two serum measurements for per- and polyfluoroalkyl substances (PFAS) for 44 participants of age 12-86 years from North Carolina, collected 5 and 11 months after fluoroether discharges into the drinking water source were controlled. The estimated half-lives for these compounds were 127 days (95% confidence interval (95% CI) = 86, 243 days) for perfluorotetraoxadecanoic acid (PFO4DA), 296 days for Nafion byproduct 2 (95% CI = 176, 924 days), and 379 days (95% CI = 199, 3870 days) for perfluoro-3,5,7,9,11-pentaoxadodecanoic acid (PFO5DoA). Using these estimates and the literature values, a model was built that predicted PFAS half-lives using structural properties. Three chemical properties predicted 55% of the variance of PFAS half-lives based on 15 PFAS. A model with only molecular weight predicted 69% of the variance. Some properties can predict the half-lives of PFAS, but a deeper understanding is needed. These fluoroethers had biological half-lives longer than published half-lives for PFHxA and PFHpA (30-60 days) but shorter than those for PFOA and PFOS (800-1200 days). These are the first and possibly only estimates of human elimination half-lives of these fluoroethers.

Indexed as

Alkanesulfonic AcidsFluorocarbonsWater Pollutants, ChemicalAdolescentAdultAgedAged, 80 and overCaprylatesChildEthersHumansMiddle AgedYoung AdultAlkanesulfonic AcidsCaprylatesEthersFluorocarbonsperfluoro-3,5,7,9,11-pentaoxadodecanoic acidWater Pollutants, ChemicalenvironmentexposurehumansPFAStoxicokinetic modelingwater

Identifiers

PMID37801709
PMCPMC10790670
OpenAlexW4387395213

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.