City report · Lombardy, Italy
Milan Air quality today
Air quality in Milan currently reads AQI 132 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Air quality right now
AQI 132
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 47.9
- tree cover
- 16.8%
- trees in this area
- 52.8K
- more trees needed
- 57.2K
Measured across a 2 km radius around Piazza del Duomo, Milan, Metropolitan City of Milan, Italy (12.57 km²), from a satellite image of Sep 7, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Milan · AQI 132 (Unhealthy for sensitive groups)
Milan's tree count comes to 52,779 trees across 12.57 km², 18 points below the 35% tree-cover level considered healthy for this area, so roughly 57,177 more trees would close the gap.
Air quality detail
Air quality in Milan today: AQI 132, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Milano, 300 m away · median of 2 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
47.9
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, Matteo, AA
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Milan's daily AQI at 113 on average, from 87 on Nov 5 to an hourly peak of 156 on Nov 9.
Where Milan stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Milan: Critically low
16.8% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
52,779
Target trees
109,956
More trees needed
57,177
CO₂ if planted / yr
1,258 t
Deforestation · 2001–2025
How much forest has Milan lost?
Since 2001, the area within 10 km of Milan has lost about 14 hectares of forest (about 20 football pitches): 3.3% of the forest it had in 2000. The biggest cause was towns and roads (30%). About 4 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 14 haabout 20 football pitches
- Share of its forest
- 3.3%of what there was in 2000
- Cleared for good
- 4 hadeforestation: turned into farms, mines or towns
The worst year was 2004, when about 2 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 2 ha | under 1 ha | 2 ha |
| 2005 | under 1 ha | 2 ha | 2 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | under 1 ha | under 1 ha | under 1 ha |
| 2008 | under 1 ha | under 1 ha | under 1 ha |
| 2009 | under 1 ha | under 1 ha | 2 ha |
| 2010 | under 1 ha | under 1 ha | 1 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | under 1 ha | under 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Milan?
- Towns and roadscleared for good30% · 4 ha
- Unknown causescause unknown68% · 10 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 3,670 ha
- Forest in 2020
- 4,710 ha
- Overall change
- +1,040 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Milan grew from about 3,670 hectares to 4,710 hectares, a net gain of about 1,040 hectares (+28%). New forest grew on about 1,070 hectares, while 36 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
In the same region
Measured cities near Milan
Same 2 km radius, same index — so they compare directly.
- Monza14.4 km
Italy
- Tree cover
- 34%
- Air quality
- 136
- Novara44.4 km
Italy
- Tree cover
- 19%
- Air quality
- 111
- Bergamo45.2 km
Italy
- Tree cover
- 30%
- Air quality
- 92
- Piacenza60.4 km
Italy
- Tree cover
- 20%
- Air quality
- 99
- Brescia80.3 km
Italy
- Tree cover
- 23%
- Air quality
- 90
- Parma115.8 km
Italy
- Tree cover
- 28%
- Air quality
- 137
Also compared:Milan vs RomeMilan vs NaplesMilan vs TurinMilan vs Palermo
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Frequently asked
Questions about Milan
What is the air quality (AQI) in Milan right now?
The latest reading for Milan shows an AQI of 132 (Unhealthy for sensitive groups), measured Nov 11, 17:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Milano, 300 m away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Milan today?
At AQI 132 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Milan been like this week?
Over the last 7 days, the CAMS air-quality model put Milan's daily AQI at 113 on average, from 87 on Nov 5 to an hourly peak of 156 on Nov 9. On 3 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Milan lost since 2001?
Since 2001, the area within 10 km of Milan has lost about 14 hectares of forest (about 20 football pitches): 3.3% of the forest it had in 2000. The biggest cause was towns and roads (30%). About 4 hectares (30%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Milan grew from about 3,670 hectares to 4,710 hectares, a net gain of about 1,040 hectares (+28%). New forest grew on about 1,070 hectares, while 36 hectares were lost.
What is the tree count in Milan?
Milan has an estimated 52,779 trees across the 12.57 km² measured — 16.8% tree cover, 18 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Milan need?
Milan needs roughly 57,177 more trees to close a 18-point shortfall against its 35% tree-cover target — about 1,258 t of extra CO₂ absorbed per year once grown.
How are Milan's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Piazza del Duomo, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Piazza del Duomo; the tree count is an estimate derived from that cover.
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