2003
The river Danube (Donau) as a new sampling area in the routine programme.
The Danube is the 14th sampling area where samples are taken regularly.
Sampling area
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  The only high mountains national park in Germany and an area of the Limestone Alps with international relevance
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  Important, old-industrialised conurbation in Germany.
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  Main water divide between the North- and Baltic Sea
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  Longest river in Germany
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  Germany's first national park
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  National Park in the largest brackish water (Bodden) habitat of the world.
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  National park in the world largest connected sand and mud flats.
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  Fourth largest river basin in Central Europe
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  Region in the chemical triangle of Central Germany
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  Germany's largest forest national park
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  Second highest and largest low mountain range in Northern Germany
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  Germany's largest connected forest area in a range of low mountains
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  The Upper Bavarian Tertiary Uplands are a part of the Southern German Molasse Basin
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  Second largest river in Europe
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  4 university cities as sampling areas.
 
Specimen
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  Common mussel species as invasive animal in rivers and lakes with high information level for water pollution
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  Bioindicator in rivers and lakes
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  Common brown alga of the coastal areas of the North and Baltic Sea
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  One of the most important edible mussel species common in the North and Baltic Sea
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  As the only viviparous fish in German nearshore waters, it is a bioindicator in nearshore coastal marine ecosystems.
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  Inshore, the herring gull mainly feeds from the sea: upon fish, mussels, and crabs.
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  A major primary producer in semi-natural and anthropogenic affected ecosystems.
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  A major primary producer in semi-natural and anthropogenic affected ecosystems.
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  A deciduous tree typical of ecosystems close to dense conurbations and an indicator for the characterisation of the immission situation during the vegetation period.
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  As the most dominant deciduous tree species in Central Europe, it plays a significant role in most nearly natural and also anthropogenically influenced forest ecosystems up to an altitude of 1100 m.
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  The roe deer is the most common of the larger herbivores (first order-consumer) to be found in the wild in Europe.
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  A pigeon species home in nearly every city.
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  As an organism living at ground level, it is a major driver of the decomposition of organic material (e.g. plant litter).
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  As an organism living at ground level, it is a major driver of the decomposition of organic material (e.g. plant litter).
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  Student groups with an even number of female and male students at the age of 20 to 29.
 
Analytes
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  Eighty percent of all elements on earth are metals
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  Only eighteen elements in the periodic table
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  Organic substances with at least one metall atom
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  Group of organic compounds with at least one covalently bonded chlorine atom
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  Toxic and persistent organochloropesticide
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  Several isomeric compounds among the group of chlorinated hydrocarbons
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  Group of organic compounds with at least three condensed six-membered rings
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  General-purpose plasticizers for PVC and other polymers
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  Commercially important precursor of polymers like polycarbonates and epoxy resins
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  Chemical agents against harmful organisms and for plant protection
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  Organic compounds which are fully (per-) or partially (poly-) fluorinated
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  Class of synthetic fragrances
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  Class of non-ionic surfactants and their degradation products
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  Atoms of one element with different weights
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  Flame retardants reduce the flammability of objects
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  Preservatives in food and cosmetics
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  Proctection for humans and products
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  Cyclic methylsiloxanes with persistent, bioaccumulative and toxic properties in the environment
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  Additional information for the interpretation of contamination data