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Public information

AirThe directives require Member States to ensure that up-to-date information on ambient concentrations of the different pollutants is routinely made available to the public as well as to other organisations. This is done by providing information on websites, teletext, in press and also by public displays. The information needs to be updated as appropriate to the averaging periods. The relation to the different limit and target values needs to be clear. When information or alert thresholds are exceeded Member States need to inform the public about the exceedance and the actions that are eventually taken. This obligation is prescribed in detail in the different directives.

On the Community level a number of sources exist that provide information to the public. Several important databases concerning air quality are managed by the European Environment Agency (EEA).

  • AirBase is the public air quality database system of the EEA based on the information from the continuous monitoring of air quality, collected under the Exchange of Information Decision 97/101/EC and the EEA priority data flows. It contains information submitted by the participating countries throughout Europe.
  • The database on ozone contains a lot of information about ozone exceedances in summer. The EEA has developed a website to provide the public with Europe-wide near real time data on ozone. The website also contains multiple links to national and regional air quality websites.
  • The CDR contains a collection of documents delivered by each country, concerning various topics, including air quality.


Zones and agglomerations in exceedance of limit values for public health