This Decision establishes rules F1... as regards:

1. (a)

   F2appropriate authorities obligations to report on the assessment and management of ambient air quality;

2. (b)

   F3appropriate authorities reciprocal exchange of information F4between each other concerning networks and stations, and the measurements of air quality obtained from those stations that are selected by F3appropriate authorities for the purpose of reciprocal exchange from amongst existing stations.

For the purposes of this Decision, and in addition to the definitions laid down in Article 2 of Directive 2004/107/EC, Article 3 of Directive 2007/2/EC, and Article 2 of and Annex VII to Directive 2008/50/EC, the following definitions shall apply:

1. (1)

   ‘station’ means a location where measurements or samples are taken at one or more sampling points at the same site within an area of approximately 100 m²;

2. (2)

   ‘network’ means an organisational structure performing assessment of ambient air quality by measuring at one or more stations;

3. (3)

   ‘measurement configuration’ means the technical facilities used for the measurement of one pollutant or one of its compounds at a certain station;

4. (4)

   ‘measurement data’ means information on the concentration or deposition level of a specific pollutant obtained by measurements;

5. (5)

   ‘modelling data’ means information on the concentration or deposition level of a specific pollutant obtained through numerical simulation of physical reality;

6. (6)

   ‘objective estimation data’ means information on the concentration or deposition level of a specific pollutant obtained through expert analysis and may include use of statistical tools;

7. (7)

   ‘primary data’ means information on the concentration or deposition level of a specific pollutant at the highest time resolution considered in this Decision;

8. (8)

   ‘primary up-to-date assessment data’ means primary data collected with the frequency appropriate to each pollutant assessment method and made available to the public without delay;

9. (9)

   F5...

10. (10)

    ‘data repository’ means an information system F6... containing air quality information and data made available through national data reporting and exchange nodes under the control of the F7appropriate authorities;

11. (11)

    ‘data type’ means a descriptor by which similar data to be used for different purposes is categorised as set out in Part A of Annex II to this Decision;

12. (12)

    ‘environmental objective’ means an ambient air quality objective to be attained within a given period, or where possible over a given period respectively or in the long term as laid down in Directives 2004/107/EC and 2008/50/EC.

13. (13)

    F8“appropriate authority”

    1. (a)

       in relation to England, the Secretary of State;

    2. (b)

       in relation to Wales, the Welsh Ministers;

    3. (c)

       in relation to Scotland, the Scottish Ministers;

    4. (d)

       in relation to Northern Ireland, the Department of Agriculture, Environment and Rural Affairs.

14. (14)

    For the purpose of this Decision a reference to a provision of a Directive is to be read as a reference to that provision in so far as it has been transposed into the law of any part of the United Kingdom.