Urban poplation exposure to air pollution by ozone and particulants
The first part of the indicator shows the population-weighted annual total of
maximum daily eight-hour mean ozone concentrations above a threshold of
70 micrograms of ozone per m3 at background stations in urban areas. The
second part of the indicator shows the population-weighted annual mean
concentration of particulate matter (PM10) at urban background. Particulate
matter (PM10) comprises particles of smaller than 10 micrometers.