geocat.ch
Assessment of the Chemical Water Status: Phosphate
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 chemical water status is assessed on the basis of the phosphate concentration by the “Physicochemical Water Quality, Nutrients” method in the Modular Stepwise Procedure (www.modul-stufen-konzept.ch). Orthophosphate (PO43-) represents the direct physiologically effective phosphorus component for plants and is an indicator of anthropogenic nutrient loading in surface waters. In contrast to lakes, phosphorus in rivers and streams is not normally limiting for algae and plant growth. Thus a higher phosphate concentration in a river does not represent a eutrophication risk for the watercourse, but does indicate a concentration which is incompatible with the natural state as a result of anthropogenic inputs.
Simple
- Alternate title
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Phosphate
- Date (Creation)
- 2014-03-26
- Identifier
- ch.bafu.gewaesserschutz-chemischer_zustand_phosphat
Point of contact
Point of contact
Spatial resolution
Equivalent scale
- Denominator
- 0
- Topic category
-
- I Inland waters
Extent
Extent
- Description
-
Switzerland
))
- Maintenance and update frequency
- Annually
- GEMET
-
-
environment
-
- geocat.ch
-
-
FSDI Federal Spatial Data Infrastructure
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- geocat.ch
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-
watercourse
-
opendata.swiss
-
Resource constraints
- Use constraints
- Other restrictions
- Other constraints
- Opendata OPEN: Open use.
- Language
- Deutsch
- Character encoding
- 8859 Part 1
- Basic Geodata
- false
- Basic Geodata Legal Level
- Federal
- Distribution format
-
-
ESRI File Geodatabase FileGDB (GDB)
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OGC Geopackage (GPKG)
-
Digital transfer options
- OnLine resource
-
Vorschau map.geo.admin.ch
Preview map.geo.admin.ch
Digital transfer options
- OnLine resource
-
ch.bafu.gewaesserschutz-chemischer_zustand_phosphat
WMS-FSDI service, layer "Phosphate"
Digital transfer options
- OnLine resource
-
Nationale Beobachtung Oberflächengewässerqualität (NAWA)
Link to description
Digital transfer options
- OnLine resource
-
STAC Browser
Download
Digital transfer options
- OnLine resource
-
RESTful API von geo.admin.ch
RESTful API from geo.admin.ch
- Geometric object type
- Point
- Reference system identifier
- EPSG:2056
Metadata
- Metadata identifier
- 4c2c25da-35fe-40a8-97be-feb29051a170
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- Français
- Character encoding
- UTF8
- Language
- Italiano
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
- Language
- Rumantsch
- Character encoding
- UTF8
Point of contact
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/4c2c25da-35fe-40a8-97be-feb29051a170
- Date info (Creation)
- 2016-02-04T17:04:09Z
- Date info (Revision)
- 2026-04-13T09:15:31.585448Z
Metadata standard
- Title
-
eCH-0271
