Comparison of {sup 238}U, {sup 210}Po and {sup 210}Pb Speciation in Six Different Types of Soils
- Atomic Energy Commission of Syria, Department of Protection and Safety (Syrian Arab Republic)
Speciation of {sup 238}U, {sup 210}Po and {sup 210}Pb in six different types of Syrian soil (Entisols, Inceptisol, Aridisol, Mollisols, Vertisols and Rock outcrops) was studied using a four-step sequential extraction procedure. The binding nature of {sup 238}U, {sup 210}Po and {sup 210}Pb was correlated with soil properties including soil particles, pH, EC, OM, sand, silt and clay. The results showed that the exchangeable and carbonate fractions of {sup 238}U did not exceed 10%. In addition, the {sup 238}U, {sup 210}Po and {sup 210}Pb fractions bonded to organic matter increased as the soil clay content decreased. The highest {sup 210}Po fraction was found to be bonded to soil Fe/Al/Mn-oxides for Entisols soils (56%) and silica for Aridisol soils (53%). Soil clay content showed a linear correlation with {sup 210}Po concentrations in soils ranging from 0.34 to 0.91. The results are considered useful in assessing the risks resulting from soils contaminated by naturally occurring radioactive material from the phosphate and oil industry.
- OSTI ID:
- 22933735
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology, Journal Name: Bulletin of Environmental Contamination and Toxicology Journal Issue: 2 Vol. 102; ISSN 0007-4861; ISSN BECTA6
- Country of Publication:
- United States
- Language:
- English
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