Air Quality Today - Capitals IT

PM2.5, NO2 and O3 with a 24-hour time graph, WHO risk level and outdoor activity recommendations for Italian capital cities.

Source:Data from ISPRA / EEA AirBase - licensed under CC-BY 4.0. Measurements are updated every hour by the ingestor. The values shown represent the most recent available reading.

Select city

Air Quality WHO
Scarsa
Roma
PM2.5
60 µg/m³
NO2
110 µg/m³
O3
140 µg/m³

PM2.5 hourly (24h)

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Evitare attività fisiche all'aperto. Tenere finestre chiuse e usare mascherina FFP2.

Come utilizzare Qualita' dell'Aria Oggi - Italia

Select the capital of your interest

Choose one of Italy's main cities from the dropdown menu. The data covers the main Italian cities with active ISPRA monitoring stations.

View PM2.5, NO2, and O3 values

The graph shows values over the last 24 hours. Colors indicate risk level according to WHO guidelines: green (good), yellow (moderate), orange (not hazardous for sensitive groups), red (not hazardous).

Read Health Recommendations

Based on the measured values, the tool shows WHO recommendations for outdoor activities. High-risk categories include children, seniors, and people with respiratory or cardiovascular diseases.

Suggerimenti

  • Concentrations of PM2.5 are generally higher during peak traffic hours (7-9 am and 5-7 pm) and cold winter nights when heating increases. Plan outdoor activities for mid-day hours.
  • Ozone levels follow an opposite pattern: peaks in late afternoon on sunny summer days. If you want to exercise outdoors in the summer, prefer early morning hours.
  • Compare data with the local AQI index of your municipality or regional ARPA for a complete picture. The tool shows raw ISPRA data, useful for technical analysis.

Domande frequenti

What measures PM2.5 and why is it hazardous?

PM2.5 (fine particulate matter with diameter less than 2.5 micrometers) is the most critical parameter for air quality. These tiny particles penetrate into alveoli of the lungs and can enter the bloodstream. The WHO recommends a daily average not exceeding 15 micrograms per cubic meter.

How often are the data updated?

Data comes from ISPRA monitoring system and is typically updated every hour. Data availability may vary depending on the station and any sensor maintenance. If data is not available, the system shows the last recorded values.

What limits does European legislation set for atmospheric pollution?

EU Directive 2024/2881 has lowered annual limits: PM2.5 to 10 micrograms per cubic meter (from previous 25), NO2 to 20 micrograms per cubic meter. Limits are stricter than before and align progressively with WHO guidelines 2021. Italian cities must adapt by 2030.

What should I do on days with high PM2.5 concentrations?

During days with PM2.5 above 25 micrograms per cubic meter, sensitive people (children, seniors, those with asthma or heart conditions) should limit intense physical activity outdoors and ventilate homes during the coolest hours. It is also recommended to follow local alerts from the City and ARPA regional authorities.