Skip to Main content Skip to Navigation
Journal articles

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

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 mu g CLD/kg dry matter). Ducks were raised indoor up to 6 weeks of age and allowed to range freely outdoors thereafter. Twenty-nine 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 from 258 to 1051,96 to 278,60 to 169 and 48 to 145 mu 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 mu g CLD/kg FM. All these values exceeded the Maximum Residue Limit (MRL) of 20 mu g/kg FM. CLD concentration in all tissues was divided by around 10 within 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.
Document type :
Journal articles
Complete list of metadata

https://hal.univ-lorraine.fr/hal-01562070
Contributor : Urafpa Ul <>
Submitted on : Thursday, July 13, 2017 - 3:26:07 PM
Last modification on : Friday, February 5, 2021 - 3:43:07 AM

Identifiers

Citation

Catherine Jondreville, Anais Lavigne, Stéfan Jurjanz, Christophe Dalibard, Jean-Marie Liabeuf, et al.. Contamination of free-range ducks by chlordecone in Martinique (French West Indies): A field. Science of the Total Environment, Elsevier, 2014, 493, pp.336-341. ⟨10.1016/j.scitotenv.2014.05.083⟩. ⟨hal-01562070⟩

Share

Metrics

Record views

164