{
  "abstract": "This study assessed chemical exposure in sheep grazing on urban plots (4 herds) and intercrop fields (3 herds) in the Île-de-France region (France) followed during 2 consecutive years. Toxic trace elements (TTE), pesticides, polycyclic aromatic hydrocarbons (PAHs), and per- and polyfluoroalkyl substances (PFAS) were detected in fodder (26 samples) and animal biological fluids (blood, milk, and urine, 5 to 12 animals sampled by year) across both systems, although concentrations generally remained below regulatory limits. Urban fodder exhibited higher levels of TTE and PAHs, likely related to traffic emissions and historical industrial activities, while some rural herds showed isolated TTE contamination associated with water sources. Pesticide residues, including banned compounds, were detected in all systems, reflecting their environmental persistence. Urinary biomonitoring revealed complex multi-residue exposure patterns, characterized by diffuse low-level contamination in urban areas and episodic agricultural peaks in intercrop fields. Regarding PFAS, the low and homogeneous concentrations measured in milk, with no significant differences between urban and intercrop systems, suggest widespread background environmental contamination rather than localized sources related to specific grazing practices. Overall, these findings indicate that livestock are exposed to mixtures of environmental contaminants even in urban environments. They highlight the importance of adaptive farming practices during periods of environmental and agricultural transition, such as rotational grazing, water quality management, and careful site selection, to reduce contaminant exposure, safeguard animal and human food safety, and support a “One Health” approach linking animal, human, and environmental health.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "name": "Gaud Dervilly"
    },
    {
      "name": "Petru Jitaru"
    },
    {
      "name": "Delphine Rousseau-Ralliard"
    },
    {
      "name": "Thomas Le Bouill"
    },
    {
      "name": "Tarek Moufawad"
    },
    {
      "name": "Valérie Wolgust"
    },
    {
      "name": "Anne Couturier-Tarrade"
    },
    {
      "name": "Bénédicte Grimard"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d4t7tzfnhk8yp.bib",
  "cited_by": 0,
  "doi": null,
  "fulltext_url": null,
  "id": "d4t7tzfnhk8yp",
  "issns": [],
  "landing_url": "https://hal.science/hal-05760353v1",
  "language": "en",
  "licence": "CC-BY-NC-4.0",
  "licence_label": "CC BY-NC 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "0.sdv"
    ],
    [
      "hal",
      "1.sdv.spee"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://hal.science/hal-05760353/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d4t7tzfnhk8yp.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:39Z",
      "native_id": "hal-05760353",
      "source": "hal",
      "url": "https://hal.science/hal-05760353v1"
    }
  ],
  "subjects": [
    {
      "field": "biology",
      "origin": "hal:0.sdv",
      "subfield": "general"
    },
    {
      "field": "chemistry",
      "origin": "hal:0.chim",
      "subfield": "general"
    },
    {
      "field": "medicine",
      "origin": "hal:1.sdv.spee",
      "subfield": "epidemiology-public-health"
    }
  ],
  "title": "Agroecological sheep farming systems in the Ile-de-France region: Assessment of micropollutant contamination in fodder and ewe blood, milk and urine",
  "title_text": "Agroecological sheep farming systems in the Ile-de-France region: Assessment of micropollutant contamination in fodder and ewe blood, milk and urine",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:39Z",
  "url": "https://research.draconitic.com/paper/d4t7tzfnhk8yp",
  "venue": "HAL",
  "versions": []
}