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

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ch.bafu.gewaesserschutz-biologischer_zustand_di ...WMS
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Additional information

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

Bundesamt für Umwelt / Abteilung Wasser

Contact points

wasser@bafu.admin.ch

Languages

English
German
French
Italian

Url

http://www.bafu.admin.ch/wasser/13462/14737/15108/index.html?lang=de

Relations

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Spatial

Schweiz

Related datasets

Documentation

Keywords

Terms of use

https://opendata.swiss/terms-of-use#terms_by

Metadata Access

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