City report · Malta
Valletta Air quality today
Air quality in Valletta currently reads AQI 47 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 47
Good
- PM2.5, fine particles (µg/m³)
- 8.5
- tree cover
- 5.4%
- trees in this area
- 7.2K
- more trees needed
- 33.0K
Measured across a 2 km radius around Valletta, Malta (12.57 km²), from a satellite image of Sep 17, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Valletta · AQI 47 (Good)
Valletta's tree count comes to 7,244 trees across 5.37 km² of land, 25 points below the 30% tree-cover level considered healthy for this area, so roughly 33,000 more trees would close the gap.
Air quality detail
Air quality in Valletta today: AQI 47, Good
Main pollutant: PM2.5 · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Attard Station, 7.3 km away · median of 3 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.5
PM10
27.3
NO₂
9.9
O₃
70.8
SO₂
0.3
CO
300.2
Data: OpenAQ · EEA
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Valletta's daily AQI at 28 on average, from 25 on Nov 5 to an hourly peak of 44 on Nov 9.
Where Valletta stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Valletta: Critically low
5.4% tree cover against a 30% healthy-neighborhood target, across 5.37 km² of land.
Trees in this area
7,244
Target trees
40,244
More trees needed
33,000
CO₂ if planted / yr
726.0 t
Deforestation · 2001–2025
How much forest has Valletta lost?
There was very little forest around Valletta in 2000, about 31 hectares, and about 5 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2018: satellite photo from June 2018 of a 5 × 5 km area in the city center.
The worst year was 2004, when about 1 hectare 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 | under 1 ha | under 1 ha | 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 Valletta?
- Towns and roadscleared for good29% · 1 ha
- Unknown causescause unknown71% · 3 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
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. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Valletta
What is the air quality (AQI) in Valletta right now?
The latest reading for Valletta shows an AQI of 47 (Good), measured Nov 11, 16:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Attard Station, 7.3 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Valletta today?
At AQI 47 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Valletta been like this week?
Over the last 7 days, the CAMS air-quality model put Valletta's daily AQI at 28 on average, from 25 on Nov 5 to an hourly peak of 44 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Valletta lost since 2001?
There was very little forest around Valletta in 2000, about 31 hectares, and about 5 hectares of it has been lost since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
What is the tree count in Valletta?
Valletta has an estimated 7,244 trees across the 5.37 km² of land measured — 5.4% tree cover, 25 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Valletta need?
Valletta needs roughly 33,000 more trees to close a 25-point shortfall against its 30% tree-cover target — about 726.0 t of extra CO₂ absorbed per year once grown.
How are Valletta's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Valletta, 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 Valletta; the tree count is an estimate derived from that cover.
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