|
|
 |
| |
|
|
|
Fate of Cesium and Strontium in Soil-to-Plant System (Overview) |
|
|
|
PP: 87-93 |
|
|
|
doi:10.18576/jrna/070210
|
|
|
|
Author(s) |
|
|
|
M. F. Abdel-Sabour,
|
|
|
|
Abstract |
|
|
| Radioactive contaminated soils can present an immediate hazard to human health as well as a chronic hazard to the environment. Knowledge of soil-specific contaminant sorption-desorption characteristics is useful for the simulation and prediction of contaminant fate, transport and diffusion in soil-water-plant systems.
The objectives of this overview paper were to explore the relative importance of soil type and some soil properties in the assessment of their environmental significance. And to explore the sorption of Cs and Sr on soils developed under dry climatic conditions.
In general, the behaviour of radionuclides deposited on the soil surface is controlled by their retention time in the top soil. For example, the slow movement and low migration rate of radionuclides in the soil results in a long radionuclide residence time at the plant-rooting zone and, hence, increases the probability of radionuclide uptake by the plant. Cesium (137Cs) and strontium (90Sr) are of special concern for soil contamination during a long half-life. The sorption of Cs and Sr in soils may be affected by a number of factors, such as the quantity and quality of the clay fraction, pH, O.M, EC, SAR and ECC.
|
|
|
|
|
|
|
|
