Climate and air: traffic restrictions for PM10

Air quality and restrictions

For the 2025/26 season ordinance no. 667 of 30 September 2025 applied from 1 October to 30 April in the area of the municipality shown in the attached map, from 8:30 to 18:30. At green level, Monday to Friday except holidays, petrol, LPG or methane cars and commercial vehicles rated Euro 0 and 1, diesels from Euro 0 to 4 and the oldest mopeds and motorcycles may not circulate. At orange and red the ban applies every day and extends to petrol and gas Euro 2 and diesel Euro 5; after two consecutive red bulletins the most polluting agricultural and industrial machinery also stops.

Orange is triggered when ARPAV forecasts show four consecutive days of PM10 above the daily limit at the Quartiere Italia station, red after ten. The restrictions were suspended over the Christmas period. The ordinance also regulates wood stoves, open burning and heating, and is renewed every autumn.