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  • Title: Weathering of radiocaesium contamination on urban streets, walls and roofs.
    Author: Andersson KG, Roed J, Fogh CL.
    Journal: J Environ Radioact; 2002; 62(1):49-60. PubMed ID: 12141607.
    Abstract:
    Recent investigations in Russia have emphasised the significance of dose contributions from contamination on urban streets and roof pavings, and, typically to a lesser extent, walls in the urban environment. The crucial factor determining the magnitude of these contributions is the retention of the contamination by the different types of urban surface. Since the Chernobyl accident, a series of long-term field studies has been carried out on urban streets, walls and roofs, to examine the weathering processes of 137Cs on the various surface types. The derived time-functions are applied to estimate resultant long-term doses to inhabitants of an urban centre. The paper highlights the effect on caesium retention of surface material characteristics.
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