- Last updated
- August 15, 2022
- Terms of use
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- Organization
- Federal Office for the Environment FOEN
- Categories
- Regions and cities, Environment
Description
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-range transboundary air pollution. Critical levels only apply for areas containing sensitive ecosystems. The critical level is set at 1 µg/m³ for lichens and between 2 und 4 µg/m³ for higher plants. The map shows the modelled ammonia concentration for the year 2020 in a resolution of 500m. The model is based on national ammonia emissions of which more than 90% originated from agriculture. Detailed information about the model can be found in the report Critical Loads of Nitrogen and their Exceedances. Information about the calculation of ammonia emissions is available on the website of Agrammon. Actual ammonia concentrations can deviate from the modelled grid data. Single pixels must not be used for assessing ammonia concentrations at single sites.
Resources
Additional information
- Identifier
- 47b30108-d19e-4ac1-ab93-cba6a777003b@bundesamt-fur-umwelt-bafu
- Issued date
- August 15, 2022
- Modified date
- August 15, 2022
- Publisher
- Bundesamt für Umwelt
- Contact points
- luftreinhaltung@bafu.admin.ch
- Languages
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- English
- German
- French
- Italian
- Further information
- Landing page
- https://data.geo.admin.ch/ch.bafu.luftreinhaltung-ammoniakkonzentration/luftreinhaltung-ammoniakkonzentration/luftreinhaltung-ammoniakkonzentration.zip
- Documentation
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- Temporal coverage
- -
- Spatial coverage
- Schweiz
- Update interval
- Irregular
- Metadata Access
- API (JSON) Download XML
