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Nitrogen Dioxide (NO2): annual mean concentrations in Europe: The map shows the annual mean Nitrogen Dioxide (NO2) concentrations in Europe based on daily averages with at least 75% of valid measurements, in µg/m3 (source: EEA, AirBase v.7).
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Trend in NO2 and NOX annual mean concentrations (2001–2010) per station type (top); percentage frequency distribution of estimated annual change of NO2 annual mean concentrations at urban stations and at traffic stations (bottom): All stations in EU Member States, with at least 75 % data coverage for at least eight years were included in the analysis. Concentrations per station type are given in μg/m3. In the top two diagrams a geographical bias exists towards central Europe where there is a higher density of stations. In the percentage frequency distribution graphs, closed bars denote stations showing a statistically significant trend, open bars denote stations with a non-significant trend. Statistically significant trends (level of significance 0.1) are calculated by applying the Mann-Kendall test. The applied method is described in de Leeuw, 2012.
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Exceedances of air quality objectives due to traffic (TERM 004) - Assessment published Jan 2011: The data analysed from selected stations in major urban agglomerations indicate that during the period 1999-2008 mean values of NO 2 concentrations at road traffic stations remain relatively stable (trend is smaller than the statistical uncertainty on estimate). An increase is observed after 2003 in the maximum observed concentrations and although a slight reduction is observed in 2007, a further increase is noted in 2008. The background concentrations remain relatively stable throughout the period 1999-2008. For PM10, a slight increase was observed in 2003 in the maximum background concentrations, but these have followed a downward trend since. The trend in the maximum PM10 concentration at traffic stations varies during the period 2002-2008, with a downward trend observed between 2002-2004, an increase in 2006 and a downward trend thereafter. Throughout the period 2002-2007 mean traffic and mean background concentrations remain relatively stable, with a slight downward trend observed in recent years.
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Exceedance of air quality limit values in urban areas (CSI 004) - Assessment published Dec 2009: Particulate Matter (PM 10 ) In the period 1997-2007, 20-50 % of the urban population was potentially exposed to ambient air concentrations of particulate matter (PM 10 ) in excess of the EU limit value set for the protection of human health (50 microgram /m 3 daily mean not be exceeded more than 35 days a calendar year). There was no discernible trend over the period (Figure 1). Nitrogen dioxide (NO 2 ) In the period 1997-2007, 13-41 % of the urban population was potentially exposed to ambient air nitrogen dioxide (NO 2 ) concentrations above the EU limit value set for the protection of human health (40 microgram NO 2 /m 3 annual mean). There was a slight downwards trend over the period (Figure 1). Ozone (O 3 ) In the period 1997-2007, 14-62 % of the urban population in Europe was exposed to ambient ozone concentrations exceeding the EU target value set for the protection of human health (120 microgram O 3 /m 3 daily maximum 8-hourly average, not to be exceeded more than 25 times a calendar year by 2010). The 62 % of the urban population exposed to ambient ozone concentrations over the EU target value was recorded in 2003, which was the record year. There was no discernible trend over the period (Figure 1). Sulphur dioxide (SO 2 ) In the period 1997-2007, the fraction of the urban population in EEA-32 member countries that is potentially exposed to ambient air concentrations of sulphur dioxide in excess of the EU limit value set for the protection of human health (125 microgram SO 2 /m 3 daily mean not to be exceeded more than three days a year), decreased to less than 1%, and as such the EU limit value set is close to being met everywhere in the urban background (Figure 1).
Located in Data and maps › Indicators › Exceedance of air quality limit values in urban areas
Exceedance of air quality limit values in urban areas (CSI 004) - Assessment published Aug 2010: Particulate Matter (PM 10 ) In the period 1997-2008, 18-50 % of the urban population was potentially exposed to ambient air concentrations of particulate matter (PM 10 ) in excess of the EU limit value set for the protection of human health (50 microgram /m 3 daily mean not be exceeded more than 35 days a calendar year); (Figure 1). Nitrogen dioxide (NO 2 ) In the period 1997-2008, 6-41 % of the urban population was potentially exposed to ambient air nitrogen dioxide (NO 2 ) concentrations above the EU limit value set for the protection of human health (40 microgram NO 2 /m 3 annual mean). There was a slight downwards trend over the period (Figure 1). Ozone (O 3 ) In the period 1997-2008, 13-62 % of the urban population in Europe was exposed to ambient ozone concentrations exceeding the EU target value set for the protection of human health (120 microgram O 3 /m 3 daily maximum 8-hourly average, not to be exceeded more than 25 times a calendar year by 2010). The 62 % of the urban population exposed to ambient ozone concentrations over the EU target value was recorded in 2003, which was the record year. There was no discernible trend over the period (Figure 1). Sulphur dioxide (SO 2 ) In the period 1997-2008, the fraction of the urban population in EEA-32 member countries that is potentially exposed to ambient air concentrations of sulphur dioxide in excess of the EU limit value set for the protection of human health (125 microgram SO 2 /m 3 daily mean not to be exceeded more than three days a year), decreased to less than 1 %, and as such the EU limit value set is close to being met everywhere in the urban background (Figure 1).
Located in Data and maps › Indicators › Exceedance of air quality limit values in urban areas
Annual mean NO2 concentration observed at urban background stations, 1997-2009 (EU-27): The figuer shows the annual mean NO2 concentration observed at urban background stations. Only urban and sub-urban background monitoring stations have been included in the calculations. Data for Cyprus, Luxembourg and Malta, are not included due to the geographical coverage of the Urban Audit.
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Decomposition analysis of N2O emission trends from EU agricultural soils, 1990–2008: Each bar shows the contribution of a single driver on GHG emission trends during a determined period. The thick short black lines indicate the combined effect of all emission drivers, i.e. the overall GHG emission trend during the period considered.
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Distance-to-target graphs for the annual (top) and hourly (bottom) NO2 limit value, for different station types, 2010: The graphs show the percentage frequency distribution of stations (on the y-axis) in the EU Member States versus the various concentration classes (on the x-axis, in µg/m3). Vertical lines correspond to target or threshold values set by the EU legislation.
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Attainment situation for NO2, reference years 2010, 2005, 2001: The graphs are based on the annual mean concentration values; they present the range of concentrations at all station types (in μg/m3) officially reported by the EU Member States and how the concentrations relate to the limit value set by EU legislation (marked by the red line). The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.
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Exceedance of air quality limit values in urban areas (CSI 004) - Assessment published May 2012: Particulate Matter (PM 10 ) In the period 1997-2009, 18-49 % of the urban population in EU-27 was potentially exposed to ambient air concentrations of particulate matter (PM 10 ) in excess of the EU limit value set for the protection of human health (50 microgram/m 3 daily mean not to be exceeded more than 35 days a calendar year and to be met by 2005). There was no discernible trend over the period (Figure 1). Nitrogen dioxide (NO 2 ) In the period 1997-2009, 6-41 % of the urban population in EU-27 was potentially exposed to ambient air nitrogen dioxide (NO 2 ) concentrations above the EU limit value set for the protection of human health (40 microgram NO 2 /m 3 annual mean and to be met by 2010). There was a slight downwards trend over the period (Figure 1). Ozone (O 3 ) In the period 1997-2009, 13-61 % of the urban population in EU-27 was potentially exposed to ambient ozone concentrations exceeding the EU target value set for the protection of human health (120 microgram O 3 /m 3 daily maximum 8-hourly average, not to be exceeded more than 25 times a calendar year by 2010, averaged over three years and to be achieved where possible by 2010). The 61 % of the urban population exposed to ambient ozone concentrations over the EU target value was recorded in 2003. There was no discernible trend over the period (Figure 1). Sulphur dioxide (SO 2 ) In the period 1997-2009, the fraction of the urban population in EU-27 that is potentially exposed to ambient air concentrations of sulphur dioxide in excess of the EU limit value set for the protection of human health (125 microgram SO 2 /m 3 daily mean not to be exceeded more than three days a year and to be met by 2005), decreased to less than 1 %, and as such the EU limit value is close to being met everywhere in the urban background (Figure 1).
Located in Data and maps › Indicators › Exceedance of air quality limit values in urban areas