Geochemical Atlas of Austria

Geochemical data are an indicator of the quality of the human environment.

Map of geochemical distribution of nickel in stream and river sediments.
Geochemical distribution of nickel in stream and river sediments.
© Geological Survey of Austria and partner institutions

They describe the distribution of nutrients, trace elements and pollutants in rocks, soil, surface water and groundwater.

A man with glasses and in rubber boots is sitting on a river bank and draws water into a metal colander filled with sand. Around him plastic bags, measuring cups and tubs.
The fine fraction of stream sediments constitute the basis for extensive analysis.
© Geological Survey of Austria

River sediments are derived from the rocks within a catchment area and mirror their chemical composition. At the same time, they show the signs of human influence on nature.