Geochemical background and threshold for 47 chemical elements in Slovenian topsoil
- Mateja Gosar
- Robert Šajn
- Špela Bavec
- Martin Gaberšek
- Valentina Pezdir
- Miloš Miler
DOIAbstract
Geochemical background and threshold values need to be established to identify areas with unusually high concentrations of elements. High concentrations are caused by natural or anthropogenic processes. The <2 mm fraction of 817 collected topsoil (0 – 10 cm) samples at a 5 × 5 km grid on the territory of Slovenia was analysed. Results are used here to establish the geochemical background variation and threshold values, derived statistically from the data set, in order to identify unusually high element concentrations for these elements in the soil samples. Geochemical threshold values were determined following different methods of calculation for (1) whole of Slovenia and (2) for 8 spatial units determined on the base of geological stru...
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