Evidence map›Paper›PMID 35936994›Full record

ArticleFrontiers in environmental science2022

Assembly and Curation of Lists of Per- and Polyfluoroalkyl Substances (PFAS) to Support Environmental Science Research.

Antony J Williams, Linda G T Gaines, Christopher M Grulke, Charles N Lowe, Gabriel F B Sinclair, Vicente Samano, Inthirany Thillainadarajah, Bryan Meyer, Grace Patlewicz, Ann M Richard

Abstract read
In one paragraph

Article in Frontiers in environmental science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

36 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  12. Dose-response modeling of effects in mice after exposure to a polyfluoroalkyl substance (Nafion byproduct 2).Toxicological sciences : an official journal of the Society of Toxicology · 2025
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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.

Antony J WilliamsOffice of Research & Development, Center for Computational Toxicology & Exposure, U.S. Environmental Protection Agency, Durham, NC, United States.
Linda G T GainesOffice of Land and Emergency Management, US Environmental Protection Agency, Washington, DC, United States.
Christopher M GrulkeOffice of Research & Development, Center for Computational Toxicology & Exposure, U.S. Environmental Protection Agency, Durham, NC, United States.
Charles N LoweOffice of Research & Development, Center for Computational Toxicology & Exposure, U.S. Environmental Protection Agency, Durham, NC, United States.
Gabriel F B SinclairORAU Student Services Contractor to U.S. Environmental Protection Agency, Office of Research and Development, Center for Computational Toxicology & Exposure, Oak Ridge, NC, United States.
Vicente SamanoSenior Environmental Employment Program, US Environmental Protection Agency, Research Triangle Park, NC, United States.
Inthirany ThillainadarajahSenior Environmental Employment Program, US Environmental Protection Agency, Research Triangle Park, NC, United States.
Bryan MeyerSenior Environmental Employment Program, US Environmental Protection Agency, Research Triangle Park, NC, United States.
Grace PatlewiczOffice of Research & Development, Center for Computational Toxicology & Exposure, U.S. Environmental Protection Agency, Durham, NC, United States.
Ann M RichardOffice of Research & Development, Center for Computational Toxicology & Exposure, U.S. Environmental Protection Agency, Durham, NC, United States.

Funding

Intramural EPA EPA999999
6 · The paper itself

Abstract

Per- and polyfluoroalkyl substances (PFAS) are a class of man-made chemicals of global concern for many health and regulatory agencies due to their widespread use and persistence in the environment (in soil, air, and water), bioaccumulation, and toxicity. This concern has catalyzed a need to aggregate data to support research efforts that can, in turn, inform regulatory and statutory actions. An ongoing challenge regarding PFAS has been the shifting definition of what qualifies a substance to be a member of the PFAS class. There is no single definition for a PFAS, but various attempts have been made to utilize substructural definitions that either encompass broad working scopes or satisfy narrower regulatory guidelines. Depending on the size and specificity of PFAS substructural filters applied to the U.S. Environmental Protection Agency (EPA) DSSTox database, currently exceeding 900,000 unique substances, PFAS substructure-defined space can span hundreds to tens of thousands of compounds. This manuscript reports on the curation of PFAS chemicals and assembly of lists that have been made publicly available to the community via the EPA's CompTox Chemicals Dashboard. Creation of these PFAS lists required the harvesting of data from EPA and online databases, peer-reviewed publications, and regulatory documents. These data have been extracted and manually curated, annotated with structures, and made available to the community in the form of lists defined by structure filters, as well as lists comprising non-structurable PFAS, such as polymers and complex mixtures. These lists, along with their associated linkages to predicted and measured data, are fueling PFAS research efforts within the EPA and are serving as a valuable resource to the international scientific community.

Indexed as

cheminformaticscomputational toxicologyenvironmental chemistrypfas (perfluorinated alkylated substances)web-based information

Identifiers

PMID35936994
PMCPMC9350880

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.