Udsivning

Udsivning is a Danish term that generally refers to the slow seepage or oozing of a liquid from a porous material or through a crack or opening. It describes a gradual and often uncontrolled movement of fluid. This can occur in various contexts, such as water seeping through soil, oil leaking from a container, or even sap from a plant. The key characteristic of udsivning is the slow, persistent nature of the fluid's escape.

In environmental contexts, udsivning is often associated with the leakage of pollutants. For example, contaminated groundwater can exhibit udsivning from underground storage tanks or landfill sites, gradually spreading into surrounding soil and water bodies. The process can be slow, making it difficult to detect in its early stages, but its cumulative effect can lead to significant environmental damage over time.

The term can also be applied to geological phenomena. Udsivning of groundwater or hydrothermal fluids can occur along fault lines or fissures in rock formations. This slow release of fluids can contribute to erosion or the formation of mineral deposits. In construction, udsivning might refer to water seeping through concrete or foundations, potentially causing structural issues if not addressed. The rate and volume of udsivning depend on factors such as the pressure of the fluid, the permeability of the material, and the size and nature of the opening or pores.