Trend in PM10 (left graph, 2001–2010) and PM2.5 (right graph, 2005–2010) concentrations per station type

Figure Created 26 Sep 2012 Published 26 Sep 2012 Last modified 29 Nov 2012
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All stations in EU Member States, with at least 75 % data coverage for at least eight years (PM10) or six years (PM2.5), were included in the analysis. Concentrations per station type are given in μg/m3. In the diagrams a geographical bias exists towards central Europe where there is a higher density of stations.



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In 2006, France introduced a nation-wide system to correct PM10 measurements. French PM10 data prior to 2007 have been corrected using station-type dependent factors.(de Leeuw, F. and Fiala, J., 2009, Indicators on Urban Air Quality, A review of current methodologies, ETC/ACC Technical Paper 2009/8)

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