Cs concentration profiles were attributed to soil properties, especially the clay content and the pH values.A convectionedispersion model with irreversible retention was used to fit the activity concentration profiles. The obtained effective diffusion coefficient and effective convection velocity parameters values were in the range from 0.2 cm 2 /y to 0.4 cm 2 /y and from 0.23 cm/y to 0.43 cm/y, respectively. These data are in agreement with values reported in literature. In general, with the growth of clay content in the soil, there was an increase in the transfer rate from free to bound state. Finally, the highest transfer rate from free to bound state was obtained for soil pH value equal to 8.
Description
9 papers describe processes leading to acidic precipitation; techniques used to collect and analyze rain; and quality assurance programs currently used by major acid precipitation measurement networks.
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