{
  "abstract": "To address the lack of a unified quantitative index for the ecological risk assessment of selenium (Se) in soils, the toxicity coefficient of Se was first determined based on Håkanson’s principles, and the spatial distribution and potential ecological risk of Se in surface soils across China were systematically evaluated. The results showed that the toxicity coefficient of Se was determined as 2. Based on the corrected background reference value, approximately 69.9% of the sampling sites were classified as low to moderate ecological risk, 24.4% as considerable risk, and 5.7% as high or very high risk. The elevated risk sites were predominantly confined to localized areas underlain by Se-rich strata, such as Enshi in Hubei Province and Ziyang in Shaanxi Province. A substantial consistency was observed between the potential ecological risk factor (Eri) and the geoaccumulation index (Igeo), with a quadratic weighted Kappa coefficient (κw) of 0.729, indicating that the two classification systems yield comparable results in terms of risk ranking. This study provides a preliminary screening benchmark for identifying areas that warrant further site-specific investigation.",
  "abstract_shown": true,
  "affiliations": [
    "School of Geography and Environment, Jiangxi Normal University, Jiangxi, P.R. China",
    "School of Materials and Chemical Engineering, Pingxiang University, Jiangxi, P.R. China"
  ],
  "article_type": "Research Article",
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Xintian Wen"
    },
    {
      "affs": [
        1
      ],
      "name": "Yanjin Huang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/86gsh4p168hh3.bib",
  "cited_by": 0,
  "doi": "10.1371/journal.pone.0359642",
  "fulltext_url": null,
  "id": "86gsh4p168hh3",
  "issns": [
    "1932-6203"
  ],
  "landing_url": "https://doi.org/10.1371/journal.pone.0359642",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "2310|Heavy metals in environment"
    ],
    [
      "plos",
      "/Biology and life sciences/Ecology/Community ecology/Ecological risk"
    ],
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      "plos",
      "/Biology and life sciences/Paleontology/Paleopedology"
    ],
    [
      "plos",
      "/Biology and life sciences/Toxicology/Toxic agents/Toxins/Heavy metals"
    ],
    [
      "plos",
      "/Biology and life sciences/Toxicology/Toxicity"
    ],
    [
      "plos",
      "/Biology and life sciences/Veterinary science/Veterinary diseases"
    ],
    [
      "plos",
      "/Earth sciences/Geology/Sedimentary geology/Shale"
    ],
    [
      "plos",
      "/Earth sciences/Paleontology/Paleopedology"
    ],
    [
      "plos",
      "/Earth sciences/Soil science/Paleopedology"
    ],
    [
      "plos",
      "/Earth sciences/Soil science/Soil ecology"
    ],
    [
      "plos",
      "/Ecology and environmental sciences/Ecology/Community ecology/Ecological risk"
    ],
    [
      "plos",
      "/Medicine and health sciences/Pathology and laboratory medicine/Toxicology/Toxic agents/Toxins/Heavy metals"
    ],
    [
      "plos",
      "/Medicine and health sciences/Pathology and laboratory medicine/Toxicology/Toxicity"
    ],
    [
      "plos",
      "/Physical sciences/Chemistry/Chemical elements/Heavy metals"
    ],
    [
      "plos",
      "/Physical sciences/Chemistry/Chemical elements/Selenium"
    ]
  ],
  "openalex": "W7221792446",
  "pdf_url": "https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0359642&type=printable",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": "Public Library of Science",
  "ris": "https://research.draconitic.com/paper/86gsh4p168hh3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:23Z",
      "native_id": "10.1371/journal.pone.0359642",
      "source": "plos",
      "url": "https://doi.org/10.1371/journal.pone.0359642"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "plos:ecology",
      "subfield": "ecology"
    },
    {
      "field": "biology",
      "origin": "plos:paleontology",
      "subfield": "evolutionary-biology"
    },
    {
      "field": "medicine",
      "origin": "plos:toxicology",
      "subfield": "pharmacology-toxicology"
    }
  ],
  "title": "Calculation and application of the selenium toxicity coefficient for potential ecological risk assessment",
  "title_text": "Calculation and application of the selenium toxicity coefficient for potential ecological risk assessment",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:23Z",
  "url": "https://research.draconitic.com/paper/86gsh4p168hh3",
  "venue": "PLOS One",
  "versions": []
}