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Contamination of free-range ducks by chlordecone in Martinique (FrenchWest Indies): A field study

Jondreville Catherine, Lavigne Anaïs, Jurjanz Stefan, Dalibard Christophe, Liabeuf Jean-Marie, Clostre Florence, Lesueur Jannoyer Magalie. 2014. Contamination of free-range ducks by chlordecone in Martinique (FrenchWest Indies): A field study. Science of the Total Environment, 493 : pp. 336-341.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : ENVIRONMENTAL SCIENCES

Abstract : The former use of chlordecone (CLD) in the French West Indies has resulted in long-term pollution of soils and subsequently of food chains. In contaminated areas, free-range ducks used to control weeds in orchards may be exposed to CLD through polluted soil ingestion. The question arises whether they may be consumed. Muscovy ducks were raised on a guava orchard planted on a soil moderately contaminated (410 ?g CLD/kg dry matter). Duckswere raised indoor up to 6 weeks of age and allowed to range freely outdoors thereafter. Twentynine females were sequentially slaughtered by groups of 2 to 5 ducks, after 4, 16, 19, 22 or 26 weeks spent in the orchard or after 16-17 weeks in the orchard followed by 3, 6 or 9 weeks in a closed shelter for depuration. CLD concentration increased from258 to 1051, 96 to 278, 60 to 169 and 48 to 145 ?g/kg fresh matter (FM) as the exposure through grazing increased from 4 to 22 weeks, in liver, abdominal fat and leg with and without skin, respectively. Eggs collected in the orchard contained up to 1001 ?g CLD/kg FM. All these values exceeded the MaximumResidue Limit (MRL) of 20 ?g/kg FM. CLD concentration in all tissues was divided by around 10within the 9-week confinement period. Despite this quite rapid decontamination, it is estimated that 12-13 weeks would be required to achieve the MRL in liver and in eggs, and 5-6 weeks in leg muscle. Such durations would be too long in practice. Thus, the consumption of products from free-range ducks should be avoided, even in areas mildly contaminated with CLD. (Résumé d'auteur)

Mots-clés Agrovoc : Canard de Barbarie, Chlordécone, Contamination chimique, Sol pollué, Toxicité du sol, Toxicité par ingestion, Chaîne alimentaire, Pollution par l'agriculture, Desmodium, Chrysophyllum cainito, Psidium guajava, Détoxification, Dimocarpus longan

Mots-clés géographiques Agrovoc : Martinique

Mots-clés complémentaires : Desmodium heterophyllum

Classification Agris : Q03 - Food contamination and toxicology
L01 - Animal husbandry
T01 - Pollution
P36 - Soil erosion, conservation and reclamation

Champ stratégique Cirad : Axe 3 (2014-2018) - Alimentation durable

Auteurs et affiliations

  • Jondreville Catherine, Université de Lorraine (FRA)
  • Lavigne Anaïs, FREDON (MTQ)
  • Jurjanz Stefan, Université de Lorraine (FRA)
  • Dalibard Christophe, DAAF972 (Guadeloupe) (MTQ)
  • Liabeuf Jean-Marie, DAAF972 (Guadeloupe) (MTQ)
  • Clostre Florence, PRAM (MTQ)
  • Lesueur Jannoyer Magalie, CIRAD-PERSYST-UPR HortSys (MTQ)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/573569/)

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