Average annual PM 2.5 concentration in selected Italian cities 2022
In 2022, the 10Italian cities with the highest yearly average concentration of fine particulate matter (PM 2.5) were located in the Po Valley, a heavily industrialized, urbanized, and populated area in the north of the country. The mean annual concentration in Monza exceeded the European target value of 25 micrograms per cubic meter (µg/m3).