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Daytime road traffic noise exposure
Regions and cities, Environment
The map shows the daytime road traffic noise to which the population is exposed. The data is based on area-wide model calculations (sonBASE). Switzerland's entire road network, ...
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Air pollution by sulfur dioxide
Regions and cities, Environment
Higher concentrations of sulfur dioxide (SO₂) can have especially negative effects on the respiratory tract; asthmatics and people with chronic respiratory diseases are particul...
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UNESCO World natural heritage
Regions and cities, Environment
The Convention concerning the Protection of the World Cultural and Natural Heritage (World Heritage Convention, SR 0.451.41) was signed at the UNESCO General Conference in 1972....
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Biogeographical regions of Switzerland (CH)
Regions and cities, Environment
The basis for establishing the biogeographical regions (in 6 or 12 classes) were the homogeneous surfaces of the river basins, where relevant and adequately extensive species in...
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Strahler stream order
Regions and cities, Environment
The stream order according to Strahler specifies the degree of branching of a hydrographic network. It forms the basis for morphological studies and descriptions of a watercours...
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Federal Inventory of Fens of National Importance
Regions and cities, Environment
Fens are vestiges of earlier natural and cultural landscapes and are in sharp decline. They are home to highly-adapted symbiotic communities of plants and animals that include a...
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Seismic zones according to the SIA 261 standard
Regions and cities, Environment
Map of seismic zones from the SIA 261 Standard “Actions on Structures” (2020). A design value is specified for the horizontal ground acceleration agd (in m/s2). This design valu...
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Federal Inventory of Reserves for Waterbirds and Migratory Birds of...
Regions and cities, Environment
Switzerland is especially important as a wintering and resting site for various migratory waterbirds. As a result, in 1974 the Federal Council signed a convention on watercourse...
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Mapping of Floodplains of National Importance
Agriculture, fisheries, forestry and food, Regions and cities, Environment
In order to give cantons the option of taking the protection of floodplains of probable national importance into their own hands as quickly as possible, the Swiss Agency for the...
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Air pollution by nitrogen dioxide
Regions and cities, Environment
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 c...
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Air pollution by Ozone
Regions and cities, Environment
Ground-level ozone has negative impacts on human health and vegetation. High levels in particular lead to irritation of the respiratory tract and lung tissue. In plants, high oz...
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Air pollution by particulate matter PM10
Regions and cities, Environment
"Particulate matter" (PM10) refers to particles less than 10 micrometres in diameter. These particles are formed during industrial and commercial production processes, combustio...
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Federal Inventory of Floodplains of National Importance
Regions and cities, Environment
Floodplains, namely natural habitats in the flood zones of watercourses, are in decline. The scientific inventory of floodplains was commissioned by the FDHA in May 1981 and com...
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Federal Inventory of Hunting Ban Reserves
Regions and cities, Environment
Federal hunting bans have existed since 1875 and served the purpose of raising the populations of chamois, red deer and roe deer as well as ibex (cloven-hoofed game), which had ...
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Inventory of quaking bogs
Regions and cities, Environment
The inventory of quaking bogs in Switzerland contains discovered primary quaking bogs of a specific minimum size with transition and raised bog characteristics (83 bogs). This i...
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Federal Inventory of Dry Grasslands of National Importance (DGS)
Regions and cities, Environment
Dry grasslands are habitats with a wide variety of species that are marked by agricultural use. In accordance with the Federal Act on Protecting Nature and Cultural Heritage, th...
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Ammonia Concentration
Regions and cities, Environment
Ammonia can harm plants and animals and contributes to elevated nitrogen deposition. Critical levels for ammonia are established in the framework of the UNECE convention on long...
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Federal Inventory of Raised and Transition Bogs of National Importance
Regions and cities, Environment
Raised bogs are some of the most susceptible habitats in Switzerland and are in sharp decline. Today, between 10% and 20% of the original stocks still exist. The scientific inve...
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Perimeters of existing spectral micro-zoning studies
Regions and cities, Environment
Perimeters for which a spectral seismic micro-zonation study is available with links to further information. The amplification of seismic waves through the local geology is mode...
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Water availability for plants
Agriculture, fisheries, forestry and food, Regions and cities, Environment
Too little water is available to the trees more and more often: •The vegetation and soil release water into the atmosphere, even moreso the warmer and drier the air. Plants evap...
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Federal Inventory of Floodplains of National Importance - Appendix 2
Regions and cities, Environment
Floodplains, namely natural habitats in the flood zones of watercourses, are in decline. The scientific inventory of floodplains was commissioned by the FDHA in May 1981 and com...
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Federal Inventory of Landscapes and Natural Monuments
Regions and cities, Environment
Article 5 of the Federal Act of 1 July 1966 on the Protection of Nature and Cultural Heritage (NCHA) orders the Federal Council to compile inventories of sites of national impor...
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Hydrogeological map of Switzerland 1:100000
Regions and cities, Environment
Published by the Federal Office for the Environment FOEN, the specialist office of the Swiss Geological Survey responsible for hydrogeology.The hydrogeological map 1:100,000 sho...
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Ramsar sites in Switzerland
Regions and cities, Environment
To protect wetlands, particularly because they are habitats for waterbirds and migratory birds, an international convention was signed in 1971 in Ramsar, Iran. Switzerland ratif...
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Aerial Images swisstopo b / w
Regions and cities, Environment
The aerial imagery catalogue of swisstopo includes several hundred thousand analogue aerial photographs (in colour, infrared, or black and white). They are represented by the ce...