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<publisher>HAL CCSD</publisher>
<title lang=en>Natural transformation of chlordecone into 5b-hydrochlordecone in French West Indies soils: statistical evidence for investigating long-term persistence of organic pollutants</title>
<creator>Devault, Damien A.</creator>
<creator>Laplanche, Christophe</creator>
<creator>Pascaline, Hélène</creator>
<creator>Bristeau, Sébastien</creator>
<creator>Mouvet, Christophe</creator>
<creator>Macarie, Hervé</creator>
<contributor>Faculté de Pharmacie ; Université Paris-Sud - Paris 11 (UP11)</contributor>
<contributor>Archéologie Industrielle, Histoire, Patrimoine- Géographie, Développement, Environnement de la Caraïbe [EA 929] (AIHP-GEODE) ; Université des Antilles et de la Guyane (UAG)</contributor>
<contributor>Laboratoire Ecologie Fonctionnelle et Environnement - ECOLAB (ECOLAB) ; Institut National Polytechnique [Toulouse] (INP) - Université Paul Sabatier - Toulouse 3 (UPS) - Observatoire Midi-Pyrénées (OMP) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)</contributor>
<contributor>Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) ; Université d'Avignon et des Pays de Vaucluse (UAPV) - Aix Marseille Université (AMU) - Institut national des sciences de l'Univers (INSU - CNRS) - INEE - INSB - Institut de recherche pour le développement [IRD] : UMR237 - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0944-1344</source>
<source>EISSN: 1614-7499</source>
<source>Environmental Science and Pollution Research</source>
<publisher>Springer Verlag</publisher>
<identifier>hal-01347150</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01347150</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01347150/document</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01347150/file/Devault_15973.pdf</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01347150</source>
<source>Environmental Science and Pollution Research, Springer Verlag, 2016, vol. 23 (n° 1), pp. 81-97. 〈10.1007/s11356-015-4865-0〉</source>
<identifier>DOI : 10.1007/s11356-015-4865-0</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1007/s11356-015-4865-0</relation>
<identifier>OATAO : 15973</identifier>
<language>en</language>
<subject lang=en>Data censoring</subject>
<subject lang=en>Pesticides</subject>
<subject lang=en>Banana</subject>
<subject lang=en>Martinique</subject>
<subject lang=en>Hierarchical Bayesian modelling</subject>
<subject lang=en>Kepone</subject>
<subject lang=en>Curlone</subject>
<subject>[SDE.ES] Environmental Sciences/Environmental and Society</subject>
<subject>[SDV.TOX.TCA] Life Sciences [q-bio]/Toxicology/Toxicology and food chain</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Chlordecone (CLD) was an organochlorine insecticide whose previous use resulted in an extensive pollution of the environment with severe health effects and social consequences. A closely related compound, 5b-hydrochlordecone (5b-hydroCLD), has been searched for and often detected in environmental matrices from the geographical area where CLD was applied. The current consensus considered that its presence was not the result of a biotic or abiotic dechlorination of CLD in these matrices but rather the consequence of its presence as impurity (synthesis by-product) in the CLD released into the environment. The aim of the present study was to determine if and to what extent degradation of CLD into 5b-hydroCLD occurred in the field. To test this hypothesis, the ratios of 5b-hydroCLD and CLD concentrations in a dataset of 810 soils collected between 2006 and 2012 in Martinique were compared to the ratios measured in 3 samples of the CLD dust commercial formulations applied in the banana fields of French West Indies (FWI) and 1 sample of the technical-grade CLD corresponding to the active ingredient used in such formulations. Soil data were processed with a hierarchical Bayesian model to account for random measurement errors and data censoring. Any pathway of CLD transformation into 5b-hydroCLD occurring over the long term in FWI soils would indeed change the ratio of 5b-hydroCLD/CLD compared to what it was in the initially applied formulations. Results showed a significant increase of the 5b-hydroCLD/CLD ratio in the soils-25 times greater in soil than in commercial formulations-which suggested that natural CLD transformation into 5b-hydroCLD over the long term occurred in these soils. Results from this study may impact future decisions for the remediation of the polluted areas.</description>
<date>2016-01</date>
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