Air quality
Air quality in Bologna today
Updated
Good (US AQI 41) Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. Model estimate for Sun, Oct 25, 9:33 pm (20:33 UTC).
Live AQI, PM2.5, PM10 and ozone for Bologna, Emilia-Romagna, Italy, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 41 Good
- PM2.5
- 17 µg/m³ 1.1× WHO 24-h guideline
- PM10
- 22 µg/m³
- Ozone
- 32 µg/m³
Air quality in Bologna right now
Right now the modelled US Air Quality Index for Bologna, Emilia-Romagna, Italy is 41, which falls in the "Good" band (up to 50). Air quality is satisfactory and poses little or no risk; a good time for outdoor activity.
PM2.5 is 17 µg/m³, 1.1 times the WHO 24-hour guideline of 15 µg/m³; PM10 is 22 µg/m³ against a guideline of 45; ozone is 32 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 26 µg/m³ (above the 24-hour guideline of 25).
NASA FIRMS shows 21 fire hotspots within 300 km in the last day (nearest about 109 km), but particle levels are not elevated enough to point to smoke right now.
Bologna vs the rest of Italy
Across 13 Italy cities we track, the average US AQI right now is 45 (Good). Bologna at 41 is about average.
It ranks 7 of 13 from cleanest to most polluted; the cleanest is Naples (32) and the most polluted Monza (66).
For context, the median across 3,556 cities worldwide is 58.
Air quality in cities near Bologna
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Florence | 80 km | 46 | Good | 7.2 |
| Venice | 131 km | 47 | Good | 11.9 |
| Mestre | 132 km | 47 | Good | 11.9 |
| Genoa | 190 km | 33 | Good | 6.1 |
| Milan | 201 km | 66 | Moderate | 22.1 |
| Monza | 202 km | 66 | Moderate | 22.1 |
| Turin | 295 km | 63 | Moderate | 25 |
| Rome | 305 km | 40 | Good | 13.6 |
Model vs measured
The nearest measured PM2.5 reading is 11 µg/m³ from Sensor.Community (median of 20 sensors), centred about 4 km from the city centre. That is 5.2 µg/m³ below the model estimate of 17 µg/m³. Low-cost sensors can read high in humid air; reference monitors are more accurate but sparser.
Advice for sensitive groups
With the AQI at 41, there is no need for sensitive groups to change plans. People with asthma should still carry their reliever inhaler as usual.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for Bologna
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), Sensor.Community, NASA FIRMS.