Particulate matter (PM10) - Annual limit value for the protection of human health

In the air quality directive (2008/EC/50), the EU has set two limit values for particulate matter (PM10) for the protection of human health: the PM10 daily mean value may not exceed 50 micrograms per cubic metre (µg/m3) more than 35 times in a year and the PM10 annual mean value may not exceed 40 micrograms per cubic metre (µg/m3). In some areas time extensions have been granted by DG Environment for meeting these limit values. Information about time extensions is provided by DG Environment at: http://ec.europa.eu/environment/air/quality/legislation/time_extensions.htm