@article{fdi:010090628,
  title = {{H}eating effect on chromium speciation and mobility in {C}r-rich soils : a snapshot from {N}ew {C}aledonia},
  author = {{T}hery, {G}. and {J}uillot, {F}arid and {C}almels, {D}. and {B}ollaert, {Q}. and {M}eyer, {M}. and {Q}uiniou, {T}. and {D}avid, {M}. and {J}ourand, {P}hilippe and {D}ucousso, {M}. and {F}ritsch, {E}mmanuel and {L}androt, {G}. and {M}orin, {G}. and {Q}uantin, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the context of global warming, wildfires are expected to increase in both frequency and intensity in the forthcoming decades. {A}mong the environmental and ecological wildfires -induced impacts, the risk of freshwater pollution by soilborne trace metals deserves a more extensive and accurate assessment because of its potential threat to human health. {T}his study aims to contribute to this evaluation by investigating the influence of laboratory soil heating on chromium solid speciation (including redox state) and mobility in {F}erralsols, {C}ambisols, {V}ertisols and {R}egosols holding varying amounts of this trace metal in {N}ew {C}aledonia ({S}outh {P}acific). {A} first result is that soil heating from 400 degrees {C} induces a partial {C}r({III}) oxidation to {C}r({VI}) in all the studied soils, confirming recent findings and extending them to a wider range of soil types. {A} second result is that the rate of heatinduced {C}r({III}) oxidation to {C}r({VI}) appears to depend on chromium speciation. {T}his latter parameter might thus represent the primary driver of chromium reactivity in burned soils. {F}inally, a third result is the confirmation that most of the {C}r({VI}) formed in the heated soils is highly mobile. {H}eat -induced {C}r({III}) oxidation to {C}r({VI}) in burned soils thus represents a significant risk towards freshwater quality. {A}t the local scale, this risk might concern a large range of drinking water catchments since the soils investigated in this study encompass a wide portion of the pedological diversity in {N}ew {C}aledonia. {A}t a broader scale, considering the wide occurrence of {C}rbearing pedological settings worldwide, the potential threats to freshwater systems resulting from the occurrence of highly toxic {C}r({VI}) in burned soils should be considered as a global emerging risk towards water quality that requires further assessment.},
  keywords = {{C}hromium ; {O}xidation ; {S}oil ; {H}eating ; {S}peciation ; {M}obility ; {NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {922},
  numero = {},
  pages = {171037 [13 p.]},
  ISSN = {0048-9697},
  year = {2024},
  DOI = {10.1016/j.scitotenv.2024.171037},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090628},
}