The role of free iron oxides in the association of lead and cadmium in gleyic phaeozems [black earths]

• Autorzy: Dabkowska-Naskret H.
• Języki publikacji: EN

Abstrakty

EN

Twelve samples, collected from four pedons of cultivated soils (black earths) were analyzed by sequential extraction to characterize the role of free iron oxides in the association of lead and cadmium. Amounts of lead and cadmium retained varied from 11 to 89.3% of the total Pb and from 4.8 to 48.7% of the total Cd. Metals associated with amorphous Fe oxides are at least ten times higher than with crystalline Fe forms. Under the existing soil conditions (high pH and CaCO3 content) free iron oxides are components of great importance in the Pb and Cd binding process. However, the results may indicate a stronger association of Pb than Cd with iron oxides in the studied black earths.

Słowa kluczowe

EN

organic matter; iron oxide; soil component; lead; adsorption; association; soil; cadmium; clay mineral; terrestrial ecosystem; black earth; toxic metal; heavy metal

• Wydawca: -
• Czasopismo: Acta Agrophysica
• Rocznik: 2001
• Tom: 50
• Opis fizyczny: p.105-111

Twórcy

autor

Dabkowska-Naskret H.

• University of Technology and Agriculture, Bernardynska 6, 85-029 Bydgoszcz, Poland

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