The indicator shows the fraction of the EU-28 urban population that is potentially exposed to ambient air concentrations of certain pollutants (PM2.5, PM10, O3, NO2, SO2 and B(a)P)) in excess of the EU limit or target values (EU, 2004, 2008) set for the protection of human health; and to concentrations of these pollutants in excess of the WHO Guidelines (WHO, 2000, 2006).
It also shows the evolution of urban background levels of PM2.5, PM10, O3 and NO2 at the European level.
The indicator is based upon measurements of air pollutants as reported under the Air Quality Directives (EU, 2004, 2008) and the Decisions on the exchange of information (EU, 1997, 2011)
- Concentration (Ci): micrograms (for PM2.5, PM10, O3, NO2 and SO2) or nanograms (for B(a)P) of pollutant per cubic meter
- Urban population (POP): number of inhabitants in the `core city´ of the Urban Audit cities who are represented by the urban stations taken into account in the calculations.
- Percentage of the urban population.
Unit of Measurement:
Description to get data:
Type of Indicator source:
- Statistical office