Assessment of the Biological Water Status: Diatoms

Within the National Surface Water Quality Monitoring Programme (NAWA), water quality is recorded jointly by the federal and cantonal authorities at around 100 monitoring stations. The biological water status is assessed on the basis of diatom investigations by the diatom module in the Modular Step Procedure (www.modul-stufen-konzept.ch). The assessment system is linked to nutrient parameters such as ammonium, nitrite and total phosphorus. Diatoms are single-cell algae which live in both fresh and salt water and occasionally even on land. They are used as bioindicators of water quality because they occur all year round in all rivers and streams and their reaction to environmental changes is well known.

Data and Resources

Additional Info

Field Value
Identifier 04193332-3a11-4fa6-bdc0-1bee0deb4bc1@bundesamt-fur-umwelt-bafu
Title for URL of the dataset beurteilung-des-biologischen-gewasserzustandes-kieselalgen-diatomeen
Schedule the publication of the dataset -
Issued date March 26, 2014
Modification date -
Conforms to -
Update interval Annual
Temporal coverage -
Publisher Information Federal Office for the Environment
Contact points wasser@bafu.admin.ch
Languages Language independent
URL https://www.bafu.admin.ch/bafu/de/home/themen/wasser/fluesse-und-baeche/nationale-beobachtung-oberflaechengewaesserqualitaet--nawa-.html
Relation geocat.ch permalink
Spatial Schweiz
Related datasets -
Documentation -
Keywords
Terms of use https://opendata.swiss/terms-of-use#terms_open
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