Northern Italy imposes restrictions to curb rising air pollution
ROME, Feb. 20 (Xinhua) -- Temporary restrictions were enforced in northern Italy, especially the Lombardy region, on Tuesday in response to persistent high levels of air pollution.
These measures were initiated after air quality indicators exceeded the limits stipulated by domestic and European legislation for particulate matter (like particles with a diameter of 10 micrometers or less, or PM10) and other pollut