{
  "abstract": "In the framework of the International Network to study Deposition and Atmospheric chemistry in AFrica (INDAAF) program, we report a 15-year dataset (2006-2020) of total carbon (TC), organic carbon (OC) and elemental carbon (EC) aerosols in PM2.5 and PM10 at the Lamto site (Cote d’Ivoire), a representative West African natural wet savanna. Harmonized protocols ensure global comparability, making this dataset the longest continuous African record and allowing us to document carbonaceous aerosol variability from weekly up to annual scales. Annual EC concentrations in PM2.5 and PM10 ranged from 1 to 1.35 μg m−3 and OC from 3 to 5.6 μg m−3 respectively, with dry-season (November-March) values about twice those of the wet season (April-October). Strong seasonal peaks were linked to biomass burning and Harmattan transport, while higher wet-season OC/EC ratios reflected incomplete combustion and secondary organic carbon formation. Back trajectories and OC/EC emission inventories indicate a decline in large-scale savanna fires but rising agricultural waste burning and growing local anthropogenic contributions. Upward OC and EC trends (+3–5 % yr−1) highlight shifting emission sources and the growing anthropogenic impact on aerosol burdens over West African savannas. This integrated approach combining in-situ monitoring, emission inventories, and trajectory analysis—offers valuable insight into regional aerosol dynamics and supports the evaluation of satellite products, air quality strategies, and chemistry-transport models.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 12,
  "authors": [
    {
      "name": "Arsène Ochou"
    },
    {
      "name": "Corinne Galy-Lacaux"
    },
    {
      "name": "Véronique Yoboué"
    },
    {
      "name": "Catherine Liousse"
    },
    {
      "name": "Béatrice Marticorena"
    },
    {
      "name": "Véronique Pont"
    },
    {
      "name": "Jean-Eudes Petit"
    },
    {
      "name": "Marie Roumy Ouafo-Leumbe"
    },
    {
      "name": "Estelle Amanda Ndengué"
    },
    {
      "name": "Sekou Keita"
    },
    {
      "name": "Money Ossohou"
    },
    {
      "name": "Maria Dias Alves"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/1n75y2yv0bxh4.bib",
  "cited_by": 1,
  "doi": "10.1016/j.atmosenv.2026.121874",
  "fulltext_url": null,
  "id": "1n75y2yv0bxh4",
  "issns": [
    "1352-2310",
    "1873-2844"
  ],
  "landing_url": "https://hal.science/hal-05827457v1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.sde"
    ],
    [
      "hal",
      "0.sdu"
    ],
    [
      "openalex",
      "1902|Atmospheric chemistry and aerosols"
    ]
  ],
  "openalex": "W7128922553",
  "pdf_url": "https://hal.science/hal-05827457/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-05-15",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/1n75y2yv0bxh4.ris",
  "sources": [
    {
      "first_seen": "2026-11-04T12:20:52Z",
      "native_id": "hal-05827457",
      "source": "hal",
      "url": "https://hal.science/hal-05827457v1"
    }
  ],
  "subjects": [
    {
      "field": "earth",
      "origin": "hal:0.sde",
      "subfield": "environmental-science"
    }
  ],
  "title": "Long term variability of carbonaceous aerosols in a West African savanna over a 15 year-period (Lamto, Côte d’Ivoire)",
  "title_text": "Long term variability of carbonaceous aerosols in a West African savanna over a 15 year-period (Lamto, Côte d’Ivoire)",
  "type": "peer-reviewed",
  "updated_at": "2026-11-05T12:20:12Z",
  "url": "https://research.draconitic.com/paper/1n75y2yv0bxh4",
  "venue": "Atmospheric Environment",
  "versions": []
}