https://www.eea.europa.eu/data-and-maps/indicators/exceedance-of-air-quality-limit-1/exceedance-of-air-quality-limit-3 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). en Plone https://www.eea.europa.eu/eea-print-logo.gif https://www.eea.europa.eu/data-and-maps/indicators/exceedance-of-air-quality-limit-1/exceedance-of-air-quality-limit-3 https://www.eea.europa.eu/data-and-maps/indicators/exceedance-of-air-quality-limit-1/exceedance-of-air-quality-limit-3/what-progress-is-being-made?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic https://www.eea.europa.eu/data-and-maps/indicators/exceedance-of-air-quality-limit-1/exceedance-of-air-quality-limit-3/what-progress-is-being-made?utm_source=EEASubscriptions&utm_medium=RSSFeeds&utm_campaign=Generic Wed, 30 May 2012 23:00:00 GMT Carsten Iversen