Trend in PM10 (left graph, 2001–2010) and PM2.5 (right graph, 2005–2010) concentrations per station type
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)
For references, please go to http://www.eea.europa.eu/data-and-maps/figures/trend-in-pm10-left-graph or scan the QR code.
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