All official European Union website addresses are in the europa.eu domain.
See all EU institutions and bodiesThe maps show the 90.4th percentile of PM10 daily mean concentrations. The 90.4th percentile represents the 36th-highest value in a complete series. It is related to the PM10 daily limit value, allowing 35 exceedances of the 50µg/m3 threshold over 1 year.