Vertical Cr3+ migration in some soil types
2000
Lahucky, L. | Vollmannova, A. | Halasova, M. (Slovenska Polnohospodarska Univ., Nitra (Slovak Republic). Katedra Chemie)
In the paper was evaluated the soil hygiene status considering the chromium content in selected soil types according to the areal survey of agricultural soils contamination by heavy metals. The total chromium content and its content in eluates 2M HNO3, 0,05M EDTA and 0,01M CaCl2 was stated from soil samples taken from three depth levels. Achieved data were compared to allowed limit values. Total chromium content in soils were 18.9 - 74.00 mg.kg-1. Mobile forms share in above extracts were 3.70 - 12.20 (in 2M HNO3), 0.02 - 0.70% (in 0.05M EDTA) and 0.00 - 0.23% (in 0.01M CaCl2) of the total chromium content. The cnock-down columns in model kinetic conditions were used for observation of chromium sorption. The soil behavior towards chromium was variable but relatively similar. Different properties shown regosol, Cambisol and stagnic glossisol, where chromium migration to the lower column layers were determined. Chromium content in used extracts was in range 0.01 - 57.17% (in 2M HNO3), 0.00 - 2.09% (in 0.05M EDTA) and 0.00 - 0.45% (in 0.01M CaCl2) of added chromium amount
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
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