Permeability (view service)

The display service presents a highly simplified picture of the permeability of the ground. The product is based on a reclassification of the basic layer of data set of soils 1:25 000-1:100,000 to four classes of permeability: low, medium, high or unassessed permeability. Read more about the underlying data set here: https://resource.sgu.se/dokument/produkter/jordarter-25-100000-beskrivning.pdf The classification is based on the grain size of the soil species in the basic layer. However, the permeability of soils depends not only on grain size but also on e.g. location in the terrain, saturation level, groundwater level and viscosity of the released substance, etc. The product does not take this into account, nor any surface layer or underlying layer. The product is intended to be used, for example, as a first basis for assessing the risk of spreading of pollutants from accidents. In view of any deficiencies in the documentation, a site-specific assessment should always be made in the terrain.