Assessment of the Chemical Water Status: Nitrite
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 nitrite concentration by the “Physicochemical Water Quality, Nutrients” method in the Modular Stepwise Procedure (www.modul-stufen-konzept.ch). Nitrogen is an essential nutrient for aquatic organisms. Most of the inorganic nitrogen present in surface waters is in the form of nitrate. Anoxic conditions can lead to the formation of nitrogen compounds reduced from nitrate, e.g. nitrite (NO2-). Nitrite is highly toxic to fish, particularly salmonids.
Simple
Identification info
- Alternate title
-
Nitrite
- Date (Creation)
- 2014-03-26
- Citation identifier
- ch.bafu.gewaesserschutz-chemischer_zustand_nitrit
Citation identifier
Point of contact
Responsible party
- Organisation name
-
Federal Office for the Environment / Hydrology Division
- Voice
-
+41 58 464 71 87
- Facsimile
-
+41 58 464 76 81
Address
- City
-
Bern
- Postal code
-
3003
- Country
-
CH
- Electronic mail address
-
hydrologie@bafu.adm hydrologie@bafu.admin.ch
- Website
- https://www.bafu.admin.ch/bafu/de/home/amt/abteilungen-sektionen/abteilung-hydrologie.html ( WWW:LINK )
- Role
- Point of contact
- Last Name
-
BAFU Hydrologie
- Organisation Acronym
-
FOEN
Point of contact
Responsible party
- Organisation name
-
Federal Office for the Environment
- Position name
-
Abteilung Wasser
- Voice
-
+41 58 462 69 69
- Facsimile
-
+41 58 463 03 71
Address
- City
-
Bern
- Postal code
-
3003
- Country
-
CH
- Electronic mail address
-
wasser@bafu.adm wasser@bafu.admin.ch
- Streetname
-
Postfach
- Website
- https://www.bafu.admin.ch/bafu/de/home/amt/abteilungen-sektionen/abteilung-wasser.html ( WWW:LINK )
- Role
- Point of contact
- Last Name
-
BAFU Wasser
- Organisation Acronym
-
BAFU
- Maintenance and update frequency
- Annually
-
GEMET
-
-
environment
-
-
geocat.ch
-
-
FSDI Federal Spatial Data Infrastructure
-
-
geocat.ch
-
-
watercourse
-
opendata.swiss
-
- Use constraints
- Other restrictions
- Other constraints
- Opendata OPEN: Open use.
- Denominator
- 0
- Language
- Deutsch
- Character set
- 8859 Part 1
- Topic category
-
- I Inland Waters
Extent
- Description
-
Switzerland
))

- Basic geodata identifier type
- Federal
- Distribution format
-
-
ESRI File Geodatabase FileGDB (GDB)
()
-
OGC Geopackage (GPKG)
()
-
ESRI File Geodatabase FileGDB (GDB)
()
- OnLine resource
-
Preview map.geo.admin.ch
(
MAP:Preview
)
Preview map.geo.admin.ch
- OnLine resource
-
ch.bafu.gewaesserschutz-chemischer_zustand_nitrit
(
OGC:WMS
)
WMS-FSDI service, layer "Nitrite"
- OnLine resource
-
National Surface Water Quality Monitoring Programme (NAWA)
(
WWW:LINK
)
Link to description
- OnLine resource
-
STAC Browser
(
WWW:DOWNLOAD-URL
)
Download server from geo.admin.ch
- OnLine resource
-
RESTful API from geo.admin.ch
(
ESRI:REST
)
RESTful API from geo.admin.ch
- Geometric object type
- Point
- Reference system identifier
- EPSG:2056
Metadata
- Metadata language
- Deutsch
- Character set
- UTF8
- Parent identifier
-
Nationale Beobachtung Oberflächengewässerqualität (NAWA)
967c7855-9b88-47ed-b370-d3bf5530fc49
- Hierarchy level
- Dataset
- Date stamp
- 2025-07-11T07:21:20.059Z
- Metadata standard name
-
GM03Core
- Metadata standard version
-
1.0
Metadata author
Metadata author
Responsible party
- Organisation name
-
Federal Office for the Environment / Hydrology Division
- Voice
-
+41 58 464 71 87
- Facsimile
-
+41 58 464 76 81
Address
- City
-
Bern
- Postal code
-
3003
- Country
-
CH
- Electronic mail address
-
hydrologie@bafu.adm hydrologie@bafu.admin.ch
- Website
- https://www.bafu.admin.ch/bafu/de/home/amt/abteilungen-sektionen/abteilung-hydrologie.html ( WWW:LINK )
- Role
- Point of contact
- Last Name
-
BAFU Hydrologie
- Organisation Acronym
-
FOEN
Metadata author
Responsible party
- Organisation name
-
Federal Office for the Environment
- Position name
-
Abteilung Wasser
- Voice
-
+41 58 462 69 69
- Facsimile
-
+41 58 463 03 71
Address
- City
-
Bern
- Postal code
-
3003
- Country
-
CH
- Electronic mail address
-
wasser@bafu.adm wasser@bafu.admin.ch
- Streetname
-
Postfach
- Website
- https://www.bafu.admin.ch/bafu/de/home/amt/abteilungen-sektionen/abteilung-wasser.html ( WWW:LINK )
- Role
- Point of contact
- Last Name
-
BAFU Wasser
- Organisation Acronym
-
BAFU