Reference : Use of major- and trace-element correlations to assess metal migration in sandy Luvis...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Multidisciplinary, general & others
Use of major- and trace-element correlations to assess metal migration in sandy Luvisols irrigated with wastewater
Lamy, Isabelle mailto [INRA Versailles > > Unité de Science du Sol > >]
van Oort, Folkert mailto [INRA Versailles > > Unité de Science du Sol > >]
Dere, Christelle [Université de Liège - ULiège > > Gembloux Agro-Bio Tech >]
Baize, Denis mailto [INRA Orléans > > Unité de Science du Sol > >]
European Journal of Soil Science
Blackwell Publishing
Yes (verified by ORBi)
[en] Soils irrigated with raw wastewater for many years accumulate trace metals, especially in the surface horizon. We do not know, however, to what extent the metals migrate down the profile and whether they accumulate in deeper horizons. We assessed the migration of trace metals in the suburbs of Paris where market gardens had been irrigated with wastewater for more than 100 years. Within a soil series, we compared metals in the polluted soils with those of a reference soil of the same kind. We sampled by horizons three representative Luvisol profiles in the irrigated area and a fourth profile selected as a reference just outside the irrigated area. Large quantities of Zn, Pb, Cd and Cu appeared to have accumulated in the topsoil, at the base of which concentrations diminished markedly. There appeared to be appreciable migration into the subsoil only at the most intensely irrigated site. By relating the total trace metal contents to the total iron contents we could detect anomalous values and identify migration into the subsurface horizons more sensitively. This approach was tested first with the endogenous metal Cr, then with metal pollutants. We showed that Zn, Pb, Cd and Cu migrated downwards in all three irrigated soils.
Researchers ; Professionals ; Students

File(s) associated to this reference

Fulltext file(s):

Restricted access
EJSS.pdfPublisher postprint5.64 MBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.