Federal Office for the Environment FOEN

Datasets from Federal Office for the Environment FOEN (353)

Air pollution by sulfur dioxide

Higher concentrations of sulfur dioxide (SO₂) can have especially negative effects on the respiratory tract; asthmatics and people with chronic respiratory diseases are particularly at ri...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Air pollution by nitrogen dioxide

The term "nitrogen oxides" (NOx) embraces nitrogen dioxide (NO₂) and nitrogen monoxide (NO). Nitrogen oxides form in the combustion of motor and heating fuels, especially when combustion ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Air pollution along the A2 and A13 - annual averages - NO and NO2

The project "Monitoring flankierende Massnahmen Umwelt" (MFM-U) measures air and noise pollution along the A2 and A13 transit axes. This is intended to show the environmental impact of fr...

Updated 2026-07-29 HTML SPARQL

Magnetic Field Exposure from Electrical Installations (modeled)

The map shows the modeled exposure to magnetic field emissions from electrical installations in Switzerland. It depicts the magnetic flux density in microtesla (μT) at a height of 1 m abo...

Updated 2026-07-29 HTML OTHER

Water status monitoring stations CH

The data set represents the monitoring stations where the water status is recorded. The cantons are responsible for water protection enforcement, as they are for other environmentally rel...

Updated 2026-07-29 API HTML SERVICE WMS WMTS

Gauging stations for hydrological study areas

Since 1957 the hydrology division of the FOEN has operated a network of hydrological study areas aimed at observing long-term changes in the water regime within Switzerland’s most natural...

Updated 2026-07-29 API HTML SERVICE WMS WMTS

Water temperature monitoring stations

The data set represents the locations of the stations in the water temperature monitoring network of the Hydrology Department of the Federal Office for the Environment (FOEN). It includes...

Updated 2026-07-29 API HTML SERVICE WMS WMTS

Mean runoff in the future - results from the Hydro-CH2018 project

The map shows the percentage changes in summer runoff towards the end of the century (2070-2099) compared to the reference period (1981 - 2010) as calculated in the hydrological scenarios...

Updated 2026-07-29 API HTML SERVICE WMS WMTS

Mean runoff (m³/s) and flow regime types for the river network of Switzerland

For the entire Swiss river network natural runoff (m³/s) values (monthly and annual means) have been modeled and the flow regime types determined. «MQ-GWN-CH» constitutes a dataset for th...

Updated 2026-07-29 API HTML SERVICE WMS WMTS

Mean daily temperature high in July, period 1961-1990

For the area-wide calculation, measured values from MeteoSwiss measuring stations in the period 1961-1990 were used. From the daily temperature curve, the highest temperature is selected,...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Mean daily temperature high in July, period 1981-2010

The daily high of the air temperature in July in the diurnal cycle (1981-2010) (for detailed explanations see «Air temperature July 1961-1990»). The resulting map has a spatial resolution...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Mean daily temperature high in July, period 2070-2099, Scenario RCP 8.5

Mean daily temperature high in July (period 2070-2099). The temperature increase of the climate scenario was added to the map «Air temperature July 1981-2010». Among the representative co...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Mean daily temperature high in July, period 2070-2099, Scenario RCP 2.6

Mean daily temperature high in July (period 2070-2099). The temperature increase of the climate scenario was added to the map «Air temperature July 1981-2010». Among the representative co...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Mean daily temperature high in July, period 2070-2099, Scenario RCP 4.5

Mean daily temperature high in July (period 2070-2099). The temperature increase of the climate scenario was added to the map «Air temperature July 1981-2010». Among the representative co...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Mean Annual Evaporation 1973–1992

The present evaporation map was first published in the Hydrological Atlas of Switzerland in 1999. For the digital version of the atlas, these values will initially be used, since evaporat...

Updated 2026-07-29 SERVICE

Mean Precipitation throughout the Alps 1971–2008

The present maps show the distribution of long-term mean precipitation in the Alpine region 1971–2008 for a a calendar year, the twelve calendar months, as well as the four seasons. The u...

Updated 2026-07-29 SERVICE

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), October

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), February

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), November

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), December

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), May

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), March

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

Monthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), January

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS

CMonthly soil erosion risk maps for Swiss permanent grassland, with average soil loss in tons/(ha*month), June

Monthly soil erosion risk maps for Swiss permanent grassland with a spatial resolution of 100m. The maps show the average soil loss in tons per hectare and month. Shades of green, yellow ...

Updated 2026-07-29 HTML SERVICE WMS WMTS