City report · Veneto, Italy
Mestre Air quality today
Air quality in Mestre currently reads AQI 113 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 113
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 41.1
- tree cover
- 21.0%
- trees in this area
- 66.0K
- more trees needed
- 44.0K
Measured across a 2 km radius around Venezia Mestre, Venezia VE, Italy (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Mestre · AQI 113 (Unhealthy for sensitive groups)
Mestre's tree count comes to 65,973 trees across 12.57 km², 14 points below the 35% tree-cover level considered healthy for this area, so roughly 43,982 more trees would close the gap.
Air quality detail
Air quality in Mestre today: AQI 113, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 10, 13:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 7 station cities within 165 km, e.g. Padua and Vicenza
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
41.1
PM10
30.2
NO₂
28.9
O₃
36.0
SO₂
2.7
CO
280.0
- 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 Mestre's daily AQI at 69 on average, from 38 on Nov 4 to an hourly peak of 124 on Nov 9.
Where Mestre stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mestre: Below target
21.0% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
65,973
Target trees
109,955
More trees needed
43,982
CO₂ if planted / yr
967.6 t
Deforestation · 2001–2025
How much forest has Mestre lost?
Since 2001, the area within 10 km of Mestre has lost about 5 hectares of forest (about 7 football pitches): 3.2% of the forest it had in 2000. The biggest cause was logging (39%), after which forest can grow back. About 1 hectare (20%) 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
- 5 haabout 7 football pitches
- Share of its forest
- 3.2%of what there was in 2000
- Cleared for good
- 1 hadeforestation: turned into farms, mines or towns
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 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | under 1 ha | under 1 ha | under 1 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 | under 1 ha |
| 2010 | under 1 ha | under 1 ha | under 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 Mestre?
- Loggingcan grow back39% · 2 ha
- Farms, pasture and plantationscleared for good14% · under 1 ha
- Towns and roadscleared for good3.9% · under 1 ha
Also: unknown causes.
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
- 555 ha
- Forest in 2020
- 618 ha
- Overall change
- +63 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Mestre grew from about 555 hectares to 618 hectares, a net gain of about 63 hectares (+11%). New forest grew on about 70 hectares, while 7 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
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Frequently asked
Questions about Mestre
What is the air quality (AQI) in Mestre right now?
The latest reading for Mestre shows an AQI of 113 (Unhealthy for sensitive groups), observed Nov 10, 13:00 local time via Open-Meteo / CAMS, corrected with 7 ground-station cities within 165 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Mestre today?
At AQI 113 (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 Mestre been like this week?
Over the last 7 days, the CAMS air-quality model put Mestre's daily AQI at 69 on average, from 38 on Nov 4 to an hourly peak of 124 on Nov 9. On 1 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Mestre lost since 2001?
Since 2001, the area within 10 km of Mestre has lost about 5 hectares of forest (about 7 football pitches): 3.2% of the forest it had in 2000. The biggest cause was logging (39%), after which forest can grow back. About 1 hectare (20%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Mestre grew from about 555 hectares to 618 hectares, a net gain of about 63 hectares (+11%). New forest grew on about 70 hectares, while 7 hectares were lost.
What is the tree count in Mestre?
Mestre has an estimated 65,973 trees across the 12.57 km² measured — 21.0% tree cover, 14 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Mestre need?
Mestre needs roughly 43,982 more trees to close a 14-point shortfall against its 35% tree-cover target — about 967.6 t of extra CO₂ absorbed per year once grown.
How are Mestre's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Venezia Mestre; the tree count is an estimate derived from that cover.
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