@article{fdi:010066130,
  title = {{N}atural transformation of chlordecone into 5b-hydrochlordecone in {F}rench {W}est {I}ndies soils : statistical evidence for investigating long-term persistence of organic pollutants},
  author = {{D}evault, {D}. {A}. and {L}aplanche, {C}. and {P}ascaline, {H}. and {B}risteau, {S}. and {M}ouvet, {C}. and {M}acarie, {H}erv{\'e}},
  editor = {},
  language = {{ENG}},
  abstract = {{C}hlordecone ({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-hydro{CLD}), has been searched for and often detected in environmental matrices from the geographical area where {CLD} was applied. {T}he 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. {T}he aim of the present study was to determine if and to what extent degradation of {CLD} into 5b-hydro{CLD} occurred in the field. {T}o test this hypothesis, the ratios of 5b-hydro{CLD} and {CLD} concentrations in a dataset of 810 soils collected between 2006 and 2012 in {M}artinique were compared to the ratios measured in 3 samples of the {CLD} dust commercial formulations applied in the banana fields of {F}rench {W}est {I}ndies ({FWI}) and 1 sample of the technical-grade {CLD} corresponding to the active ingredient used in such formulations. {S}oil data were processed with a hierarchical {B}ayesian model to account for random measurement errors and data censoring. {A}ny pathway of {CLD} transformation into 5b-hydro{CLD} occurring over the long term in {FWI} soils would indeed change the ratio of 5b-hydro{CLD}/{CLD} compared to what it was in the initially applied formulations. {R}esults showed a significant increase of the 5b-hydro{CLD}/{CLD} ratio in the soils-25 times greater in soil than in commercial formulations-which suggested that natural {CLD} transformation into 5b-hydro{CLD} over the long term occurred in these soils. {R}esults from this study may impact future decisions for the remediation of the polluted areas.},
  keywords = {{K}epone ; {C}urlone ; {P}esticides ; {B}anana ; {M}artinique ; {H}ierarchical {B}ayesian ; modelling ; {D}ata censoring ; {MARTINIQUE}},
  booktitle = {{C}rop protection and environmental health : legacy management and new concepts},
  journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch},
  volume = {23},
  numero = {1},
  pages = {81--97},
  ISSN = {0944-1344},
  year = {2016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066130},
}