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- Title
Radium distribution in anthropogenic soils as a function of soil physicochemical and mineralogical parameters.
- Authors
Noskova, L.; Shuktomova, I.
- Abstract
We investigated the effects of physicochemical and mineralogical compositions of radioactively contaminated podzolic and soddy-meadow soils on the Ra distribution in the soil profile. It was shown that the physicochemical compositions of soils depend on the type of contamination and have different effects on the mobility of the radionuclide. The presence of phosphorus and organic matter was shown to reduce Ra mobility. The highest Ra content was observed in the fraction <10 µm. The role of the composition of the fine fraction of the anthropogenic soil was evaluated. Relations between Ra and organic matter contents in different size fractions are satisfactorily described by the logarithmic function C = a + bln( C) ( R = 0.9, p < 0.05). The concentrations of Ra and organic matter show a positive correlation with relative percentages of illite- and smectite-group minerals and a negative correlation with chlorites.
- Subjects
RADIUM; ANTHROPOGENIC soils; SOIL physics; MINERALOGY; SOIL profiles; SOIL pollution
- Publication
Geochemistry International, 2015, Vol 53, Issue 11, p1012
- ISSN
0016-7029
- Publication type
Article
- DOI
10.1134/S0016702915090050