Suggestions for Guidance Documents and Further Support

Air quality assessment is undertaken with different levels of detail in the Member States. There are also indications that assessment is incomplete in some zones. The analysis of non-critical areas has shown that for some cities only information about urban background stations is available and that the data in AirBase are different from other datasets. Whereas compliance is achieved in urban background areas, exceedances might occur at hotspot sites, which may remain undetected if no further assessments are undertaken. Therefore guidance documents and further support, e.g. via dedicated workshops, might be helpful. 

2 Emission Data, Traffic Analysis, Modal Split, etc. 

Data necessary to analyse the contributions from different sources, and to define indicators to prove the effects of measures, are missing or incomplete in some cities and areas. In order to support the relevant authorities, a (guidance) document should be developed which should cover the following aspects  

For some cities and areas no detailed source apportionment was available. As with the datasets described above, which are important input parameters for source apportionment, a guidance document or further support might be helpful. 

In order to support the relevant authorities, a (guidance) document should be developed which should cover the following aspects  

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