Background content of nickel in arable topsoils. Evaluation and map representation are based on the starting material of the soil formation and the geological subsurface. For a better overview, a nationwide presentation is provided. However, the data base and thus also application area are always only the arable land. The map shows the classified values of the 50th and 90 percentiles. In the attribute table, these data are separated and supplemented by the number of samples. Date of creation 2002.
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