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    • 3D Printers Emissions of Environmentally Persistent Free Radicals (EPFRs)

    Metadata Updated: January 5, 2024

    Polymers used in 3D printing are known to emit hazardous materials when heated. While the emissions from pristine polymers and some filaments have been studied, many filaments contain additives that may influence their hazardous emissions. This research used a variety of commercially-available 3D printer filaments to assess the possibly formation of environmentally persistent free radicals (EPFRs), a class of surface-bound free radicals that have much longer lifetimes compared to their gas-phase counterparts. Electron paramagnetic resonance (EPR) spectroscopy was used to successfully identify EPFRs in particulate matter collected during regular 3D printer use. These findings should influence future studies on 3D printer emissions to include consideration of EPFR formation. These methodologies may be used by EPA's Chemical Safety and Pollution Prevention (OCSPP), Consumer Protection and Safety Commission (CPSC), and National Institute of Occupational of Safety and Health (NIOSH).

    This dataset is associated with the following publication: Hasan, F., P.M. Potter, S.R. Al-Abed, J. Matheson, and S.M. Lomnicki. Investigating environmentally persistent free radicals (EPFRs) emissions of 3D printing process. Chemical Engineering Journal. Elsevier BV, AMSTERDAM, NETHERLANDS, 480: 148158, (2024).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://doi.org/10.1016/j.cej.2023.148158
    https://pasteur.epa.gov/uploads/10.23719/1529613/documents/Supporting%20Information_EPFR%20Manuscript.docx

    Dates

    Metadata Created Date January 5, 2024
    Metadata Updated Date January 5, 2024

    Metadata Source

    Harvested from EPA ScienceHub

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 5, 2024
    Metadata Updated Date January 5, 2024
    Publisher U.S. EPA Office of Research and Development (ORD)
    Maintainer
    Identifier https://doi.org/10.23719/1529613
    Data Last Modified 2023-08-29
    Public Access Level public
    Bureau Code 020:00
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Harvest Object Id 0bd7046a-6081-4866-9c79-d62d1c6aff68
    Harvest Source Id 04b59eaf-ae53-4066-93db-80f2ed0df446
    Harvest Source Title EPA ScienceHub
    License https://pasteur.epa.gov/license/sciencehub-license.html
    Program Code 020:000
    Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
    Related Documents https://doi.org/10.1016/j.cej.2023.148158, https://pasteur.epa.gov/uploads/10.23719/1529613/documents/Supporting%20Information_EPFR%20Manuscript.docx
    Source Datajson Identifier True
    Source Hash 7128255ec0c2578fad2455dbbdd9ead17948b315319fe9564e4ed4eb2cb0e285
    Source Schema Version 1.1

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