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Spatial distribution of heavy metals in the surface soil of source-control stormwater infiltration devices - Inter-site comparison
Spatial distribution of heavy metals in the surface soil of source-control stormwater infiltration devices - Inter-site comparison
Abstract : Stormwater runoff infiltration brings about some concerns regarding its potential impact on both soil and groundwater quality; besides, the fate of contaminants in source-control devices somewhat suffers from a lack of documentation. The present study was dedicated to assessing the spatial distribution of three heavy metals (copper, lead, zinc) in the surface soil of ten small-scale infiltration facilities, along with several physical parameters (soil moisture, volatile matter, variable thickness of the upper horizon). High-resolution samplings and in-situ measurements were undertaken, followed by X-ray fluorescence analyses and spatial interpolation. Highest metal accumulation was found in a relatively narrow area near the water inflow zone, from which concentrations markedly decreased with increasing distance. Maximum enrichment ratios amounted to > 20 in the most contaminated sites. Heavy metal patterns give a time-integrated vision of the non-uniform infiltration fluxes, sedimentation processes and surface flow pathways
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https://hal-enpc.archives-ouvertes.fr/hal-01403964
Contributeur : Damien Tedoldi <>
Soumis le : lundi 28 novembre 2016 - 11:04:47
Dernière modification le : mardi 10 novembre 2020 - 16:49:05
Archivage à long terme le : : lundi 20 mars 2017 - 21:20:40
Contributeur : Damien Tedoldi <>
Soumis le : lundi 28 novembre 2016 - 11:04:47
Dernière modification le : mardi 10 novembre 2020 - 16:49:05
Archivage à long terme le : : lundi 20 mars 2017 - 21:20:40
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Tedoldi et al., 2016, Spatial ...
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