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  • Title: Uranium in stream and mineral water of the Federal Republic of Germany.
    Author: Birke M, Rauch U, Lorenz H.
    Journal: Environ Geochem Health; 2009 Dec; 31(6):693-706. PubMed ID: 19229640.
    Abstract:
    The concentration of uranium was determined in 944 samples from stream water by the inductively coupled plasma quadrupole mass spectrometry (ICP-QMS) method and represented on a color-shaded contour map. Uranium concentrations in surface water were determined to be between 0.007 μg/l and 43.7 μg/l with median of 0.33 μg/l. The regional distribution of uranium is influenced primarily by lithological and anthropogenic factors. In Mecklenburg, northern Brandenburg, and eastern Schleswig-Holstein, elevated uranium concentrations coincide with the extent of the last Weichselian ice sheet. The maximum concentrations are observed in the surface waters of the old mining districts in the western part of the Ore Mountains and in eastern Thuringia. Elevated concentrations are found in areas of agriculturally used loess soils. These concentrations correlate with the use of phosphate fertilizers. There is a zone of elevated concentrations up to 10.0 μg U/l in the Keuper Sandstone area south of the Thuringian Forest and from northwest of Stuttgart as far as Coburg. The distribution of elevated values in mineral water shows a clear correlation with the elevated values in surface water and the geology of those locations. Bunter and Keuper strata are the most important uranium source.
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