Topics | Umweltbundesamt

Metals and selenium are found in the environment in various different compounds. Their geogenic concentrations (background concentrations ) vary. Some metals and selenium are essential for organisms at low concentrations. read more

A classification of quality of the water body structure (see table below) developed by the Working Group of the Federal States on Water Issues (LAWA) describes a change in water structural quality in terms of deviation from its potential natural state (reference condition). Maps of water landscapes served to define reference conditions. On small to medium-sized watercourses, the morphological... read more