Abstract

Drinking Water Treatment Plants (DWTPs) can be optimised for removal of natural radionuclides, thus meeting EU legislation. Removed radionuclides (234,238U, 226Ra and 210Po) go into sludges. What would happen if these sludges were used in agriculture? Wheat plantlets were cultivated in original and sludge-amended soils under laboratory controlled conditions. Soil-to plant transfer was significantly increased in factors ranging 1.2–3.7, 2.0–5.6, and 1.6–2.4 for 234,238U, 226Ra and 210Po, respectively. The additional input was preferentially accumulated in roots.

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