SmogRank / World / Europe / Italy / Aosta Valley
Most polluted cities in Aosta Valley, Italy
No city in Aosta Valley, Italy has enough readings to rank so far this year.
The 20 monitors run by ARPA Lazio in Italy haven't reported for more than two days. Cities that rely on them are missing from the 24-hour board and may drop from the longer ones; they return when the data does.
A city joins this ranking with enough days of readings so far this year; none here has that right now, so there is nothing to map or chart.
Last 24 hours: 1 measured city · Last 7 days: 1 measured city · Last 30 days: 1 measured city
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Bad-air episodes in Aosta Valley
Times when many cities around here had PM2.5 at twice their usual or more on the same days.
Updated 2026-10-02 10:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.