@article{fdi:010060803,
  title = {{A}tmospheric mercury incorporation in soils of an area impacted by a chlor-alkali plant ({G}renoble, {F}rance) : contribution of canopy uptake},
  author = {{G}u{\'e}dron, {S}t{\'e}phane and {G}rangeon, {S}. and {J}ouravel, {G}. and {C}harlet, {L}. and {S}arret, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study focused on the fluxes of mercury ({H}g) and mechanisms of incorporation into soils surrounding a chlor-alkali plant suspected to have emitted up to similar to 600 kg {H}g year(-1) for decades into the atmosphere. {C}omparison of vertical {H}g soil profiles with {A}s, {C}u, {N}i and {Z}n (which were not emitted by the plant) support {H}g enrichment in surface horizons due to atmospheric {H}g inputs from the chlor-alkali plant. {B}ased on chemical extractions and elemental correlations, {H}g was found to be weakly leachable and bio-available for plants, and most probably strongly bound to organic matter. {I}n contrast, other trace elements were probably associated with phyllosilicates, iron oxides or with primary minerals. {H}g stocks in the surface horizon of a forested soil (1255 mg {H}g m(-3)) were two-fold higher than in an agricultural soil (636 mg {H}g m(-3)) at a similar distance to the plant. {T}he difference was attributed to the interception of atmospheric {H}g by the canopy (most likely gaseous elemental {H}g and reactive gaseous {H}g) and subsequent litterfall incorporation. {S}ome differences in the ability to trap atmospheric {H}g were observed between tree species. {T}he characterization of the litter showed an increasing {H}g concentration in the plant material proportional to their degradation stage. {I}n agricultural soils, very low {H}g concentrations found in corn leaves and grains suggested a limited uptake via both the foliar and root pathways. {T}hus, the short-term risk of {H}g transfer to agricultural crops and higher levels of the trophic chain appeared limited. {A} possible risk which remains to be evaluated is the possible transfer of {H}g-rich particles from the forest topsoil to downstream aquatic ecosystems during rain and snowmelt events.},
  keywords = {{A}tmospheric mercury ; {H}g ; {C}hlor-alkali ; {C}anopy uptake ; {S}oil ; {C}rop ; {FRANCE}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {445},
  numero = {},
  pages = {356--364},
  ISSN = {0048-9697},
  year = {2013},
  DOI = {10.1016/j.scitotenv.2012.12.084},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060803},
}