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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 is at high temperatures. Road transport is the main source. They are an important precursor in the formation of acid rain, secondary particulate matter and - in combination with volatile organic compounds - photo-oxidants (ozone/summer smog). Along with ammonia they form particulate matter and contribute to the over-fertilisation of ecosystems. Nitrogen dioxide and other irritant gases are also a causal factor in diseases of the respiratory tract. Children are particularly susceptible. The time series shows the modeled maps of the annual mean values since 1990 in a 200 m grid, and in a 100 m grid from 2020. The NO₂ concentrations may deviate locally from the modeled data. Individual pixels should not be used to evaluate individual locations. The annual limit for NO₂ set in the Ordinance on Air Pollution Control is 30 µg/m³.

Data and Resources

Additional information

Identifier
8b99b3cc-b38b-4b67-903f-edc83faa0846@bundesamt-fur-umwelt-bafu
Title for URL of the dataset
luftbelastung-durch-stickstoffdioxid
Schedule the publication of the dataset
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Issued date
January 1, 2025
Modification date
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Conforms to
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Update interval
Annual
Temporal coverage
-
Publisher Information
Federal Office for the Environment
Contact points
luftreinhaltung@bafu.admin.ch
Languages
  • English
  • German
  • French
  • Italian
URL
https://www.bafu.admin.ch/dam/bafu/de/dokumente/luft/fachinfo-daten/karten_der_luftbelastunginderschweiz-dokumentation.pdf.download.pdf/karten_der_luftbelastunginderschweiz-dokumentation.pdf
Relation
Spatial
Schweiz
Related datasets
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Documentation
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Keywords
Terms of use
https://opendata.swiss/terms-of-use#terms_by
Metadata Access
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