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    • Evaluations in support of the development of aquatic life criteria for major geochemical ions

    Metadata Updated: October 23, 2025

    This dataset provides data files and software regarding the report "EVALUATIONS IN SUPPORT OF THE DEVELOPMENT OF AQUATIC LIFE CRITERIA FOR MAJOR GEOCHEMICAL IONS: TOTAL ION TOXICITY VERSUS CALCIUM FOR SEVERAL AQUATIC SPECIES". This includes eight excel files containing data on multiple tests (of different salts, salt mixtures, and test conditions) regarding the acute toxicity of major geochemical ions to eight aquatic species. These data provide the chemistry of test solutions at median lethal conditions in these tests and were used in subsequent analyses described in the report to derive the relationships for total ion toxicity versus calcium concentration for these eight species (for subsequent use in criteria development). A Word file describing these files is provided, and additional files regarding the analyses are archived and subject to request. The dataset also provides two zip files containing software used in these analyses, including software for determining concentration-response curves (to quality assure author-reported LC50s during report preparation) and the software for establishing the total ion toxicity vs calcium relationships. Each zip file contains an executable file and the Fortran code used to build these executables for code review as desired, but are not recompilable into a new executables without Winteracter (a Fortran-based user interface development application).

    This dataset is associated with the following publication: Erickson, R. Evaluations in support of the development of aquatic life criteria for major geochemical ions: Total ion toxicity versus calcium for several aquatic species. U.S. Environmental Protection Agency, Washington, DC, USA, 2025.

    Access & Use Information

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

    Downloads & Resources

    References

    https://pasteur.epa.gov/uploads/10.23719/d-qjqt/documents/OWCriteria_TotIonVsCaSoftware.zip
    https://pasteur.epa.gov/uploads/10.23719/d-qjqt/documents/OWCriterionConcRespSoftware.zip

    Dates

    Metadata Created Date October 23, 2025
    Metadata Updated Date October 23, 2025

    Metadata Source

    Harvested from EPA ScienceHub

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 23, 2025
    Metadata Updated Date October 23, 2025
    Publisher U.S. EPA Office of Research and Development (ORD)
    Maintainer
    Identifier https://doi.org/10.23719/d-qjqt
    Data Last Modified 2025-05-12
    Public Access Level public
    Bureau Code 020:00
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Harvest Object Id bd7858cb-707c-4e92-a1cd-5aba9b71f04c
    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://pasteur.epa.gov/uploads/10.23719/d-qjqt/documents/OWCriteria_TotIonVsCaSoftware.zip, https://pasteur.epa.gov/uploads/10.23719/d-qjqt/documents/OWCriterionConcRespSoftware.zip
    Source Datajson Identifier True
    Source Hash a0121e04c3c82ce81c4563b706ccae694ad8d8a37fe6825cc1ef869148f37b65
    Source Schema Version 1.1

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