@article{fdi:010077990,
  title = {{P}hysico-chemical and agronomic results of soil remediation by {I}n {S}itu {C}hemical {R}eduction applied to a chlordecone-contaminated nitisol at plot scale in a {F}rench {C}aribbean banana plantation},
  author = {{M}ouvet, {C}. and {C}ollet, {B}. and {G}aude, {J}. {M}. and {R}angon, {L}uc and {B}risteau, {S}. and {S}energues, {M}. and {L}esueur-{J}annoyer, {M}. and {J}estin, {A}. and {H}ellal, {J}. and {W}oignier, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {I}n {S}itu {C}hemical {R}eduction ({ISCR}) process was tested in a nitisol in a {F}rench {C}aribbean banana plantation using five different soil amendments. {T}he addition of 2.8% or 4.0% of {Z}ero {V}alent {I}ron ({ZVI}; dw/dw, 2 different trial plots) in the 0-40-cm soil layer lowered the initial chlordecone ({CLD}) concentration by up to 74% or 69% in 37 days or 94 days, with 75% of the decrease achieved after only 21 or 24 days of treatment depending on the trial plot. {T}he addition of commercially available {D}aramend ({R}) was also tested by applying the 6% dose (dw/dw) recommended by the manufacturer and using either the regular alfalfa-based product or a bagasse-based product specifically formulated for the study. {B}oth significantly lowered {CLD} concentrations, but to a lesser extent than with the {ZVI}-only amendment. {A} bagasse-{ZVI} mixture prepared on site produced results slightly better than the two {D}aramend ({R}). {T}he percentage decreases in {CLD} concentrations were correlated with the negative redox potentials achieved. {I}n all the trial plots, dechlorinated transformation products appeared in the soil and soil water as the {CLD} concentrations decreased, with {H} atoms replacing up to 4 and 7 of the 10 {C}l atoms, respectively. {N}one of these degradation products appeared to accumulate in the soil or soil water during the treatment. {I}nstead, the reverse occurred, with an overall downward trend in their concentrations over time. {T}he effects of {ISCR} treatment on agronomic and human health-related parameters were measured in three different crops. {T}he radishes produced with some treatments were visually of lower quality or smaller in size than those grown in the control plots. {L}ower yields were observed for the cucumbers and sweet potatoes grown after applying the bagasse-based amendments. {M}ortality among cucumber seedlings was observed after treatment with {ZVI} only. {S}imple operational solutions should suffice to remedy these negative agronomic effects. {A}s regards human health-related effects, the {CLD} concentrations in radishes grown with three of the amendments were significantly lower than in the two control plots and well below the maximum residue level ({MRL}), which was substantially exceeded in the radishes grown on untreated soil. {F}or cucumbers, the treatments with regular {D}aramend ({R}) and with a local bagasse-{ZVI} mixture produced fruits with {CLD} below the {MRL} and also below the concentrations in one of the two control plots. {A}s for the sweet potatoes, adding a bagasse-{ZVI} mixture had a significant positive effect by decreasing contamination below the levels in the two control plots and below the {MRL}.},
  keywords = {{C}hlordecone ; {D}egradation products ; {S}oil decontamination ; {C}hemical reduction ; {P}lant ; {M}aximum residue level ; {MARTINIQUE}},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {P}ollution {R}esearch},
  volume = {27},
  numero = {33},
  pages = {41063--41092},
  ISSN = {0944-1344},
  year = {2020},
  DOI = {10.1007/s11356-020-07603-z},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077990},
}