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Natural soil profiles strongly contaminated by arsenic (As) have been studied. Soils were characterised by its pH, chemical composition, carbonate, humus, exchangeable cations and H + , and oxalate extractable Fe contents. Mineralogical and chemical speciation of the As was studied by mineralogical methods and sequential extraction. Results were compared and discussed regarding the two different...
A 30-month experiment was carried out in field containers to evaluate the potential of various amendments and/or a plant cover (Agrostis stolonifera L.) for reclamation of a soil contaminated with As, Cd, Cu, Pb and Zn. Five amended treatments with plant were established: leonardite (LEO), litter (LIT), municipal waste compost (MWC), biosolid compost (BC) and sugar beet lime (SL). Two controls were...
The impact of heavy metal pollution on growth and water quality has become a public concern. Fractionation of soil lead (Pb) is an important approach of chemical characterization and can provide useful information on its bioavailability. A greenhouse study was undertaken to estimate the availability of Pb fractions to rice in two paddy soils of Inceptisol (Fluventic Umbrepts) and Ultisol (Plinthudic...
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