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Indications for phosphorus fertilizer-derived uranium mobilization from arable soils to groundwater

Smidt, G A and Parks, A and Pokharel, R and Landes, F C and Schnug, E and Koschnisky, A (2011) Indications for phosphorus fertilizer-derived uranium mobilization from arable soils to groundwater. In: Jahrestagung der DBG 2011: Böden verstehen - Böden nutzen - Böden fit machen, 03.-09.09.2011, Berlin.

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Uranium (U) and many trace elements are enriched in phosphorus fertilizers. Concentrations up to 260 mg/kg P2O5 indicate the potential of U contamination of the environment. Two fertilized long-time soil monitoring fields (BDF) in Lower Saxony have higher top soil concentration than comparable unfertilized top soils sampled at the Green-Belt in the vicinity of the BDFs. Extraction experiments could show that fertilizer-derived U is easier mobilized and hence might be leached faster to the groundwater than the geogenic U in soils. Groundwater analyses in an area of intense agricultural production show U in correlation with nitrate, indicating an impact of anthropogenic fertilization on the U concentration in shallow groundwater. The results of soil, soil extract and groundwater analyses are giving indications for fertilizer-derived U leaching to groundwater aquifers and hence show the potential hazard for our drinking water resources.

Item Type: Conference or Workshop Item (Contribution to "Reports of the DBG")
Uncontrolled Keywords: Keywords: Uranium, Phosphorus Fertilizer, Groundwater, Pollution
Divisions: Kommissionen > Kommission VI: Bodenschutz und Bodentechnologie
Depositing User: Geerd Ahlrich Smidt
Date Deposited: 19 Oct 2011 12:33
Last Modified: 13 Dec 2015 16:26
URI: https://eprints.dbges.de/id/eprint/700

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