Grenze Deutschland/Tschechische Republik

Border Germany/Czech Republic

First sub-area in the river Elbe after crossing the Czech-German border

The sub-area is located in the upper reaches of the Elbe in the water gap where the river cuts through the Elbe Sandstone Mountains. This is the last time the river crosses mountains. The German headwaters start with a wide meander before the river turns to the northwest again. The Elbe still has the distinct character of an upland river and erosion exceeds sedimentation. Gradually the slope decreases.

In this section the river is straightened and reinforced by coarse gravel. No transverse structures or barrages obstruct the waterway.

In the sub-area ‘Grenze Deutschland/Tschechische Republik’ (border Czech Republic-Germany) the contaminant load of the Elbe at its entry to Germany can be measured.

Sampling site

Prossen (km 13) First sampling site of the river Elbe after crossing the Czech-German border


Zebra mussel Common mussel species as invasive animal in rivers and lakes with high information level for water pollution
Bream Bioindicator in rivers and lakes
Suspended particulate matter Fine insoluble mineral or organic particles in the water phase


Metals Eighty percent of all elements on earth are metals
Nonmetals Only eighteen elements in the periodic table
Organometallic compounds Organic substances with at least one metall atom
Chlorohydrocarbons Group of organic compounds with at least one covalently bonded chlorine atom
DDT and metabolites Toxic and persistent organochloropesticide
Hexachlorocyclohexane Several isomeric compounds among the group of chlorinated hydrocarbons
Polycyclic Aromatic Hydrocarbons Group of organic compounds with at least three condensed six-membered rings
Biocides and plant protection products Chemical agents against harmful organisms and for plant protection
Per- and polyfluoroalkyl compounds Organic compounds which are fully (per-) or partially (poly-) fluorinated
Polycyclic musks Class of synthetic fragrances
Alkylphenol compounds Class of non-ionic surfactants and their degradation products
Stable Isotopes Atoms of one element with different weights
Supplementary parameters Additional information for the interpretation of contamination data

Sampling period

1993 - 2019