City report · Wallis and Futuna
Mata-Utu Air quality today
Air quality in Mata-Utu currently reads AQI 55 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 55
Moderate
- PM2.5, fine particles (µg/m³)
- 11.2
- tree cover
- 80.1%
- trees in this area
- 140K
- more trees needed
- 0
Measured across a 2 km radius around Matā'utu, Wallis and Futuna (12.57 km²), from a satellite image of Jun 8, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Mata-Utu · AQI 55 (Moderate)
Mata-Utu's tree count comes to 140,416 trees across 7.01 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Mata-Utu today: AQI 55, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 22:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
11.2
PM10
19.4
NO₂
0.0
O₃
36.0
SO₂
0.2
CO
82.0
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Mata-Utu's daily AQI at 51 on average, from 40 on Nov 5 to an hourly peak of 61 on Nov 8.
Where Mata-Utu stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mata-Utu: Healthy tree cover
80.1% tree cover against a 30% healthy-neighborhood target, across 7.01 km² of land.
Trees in this area
140,416
Target trees
140,416
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Mata-Utu lost?
There was almost no forest around Mata-Utu in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
The forest-loss maps don't cover this area.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
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 Mata-Utu
What is the air quality (AQI) in Mata-Utu right now?
The latest reading for Mata-Utu shows an AQI of 55 (Moderate), observed Nov 11, 22:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Mata-Utu today?
At AQI 55 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Mata-Utu been like this week?
Over the last 7 days, the CAMS air-quality model put Mata-Utu's daily AQI at 51 on average, from 40 on Nov 5 to an hourly peak of 61 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Mata-Utu lost since 2001?
There was almost no forest around Mata-Utu in 2000, so there has been almost nothing to lose 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 Mata-Utu?
Mata-Utu has an estimated 140,416 trees across the 7.01 km² of land measured — 80.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Mata-Utu need?
Mata-Utu has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Mata-Utu'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 Matā'utu; the tree count is an estimate derived from that cover.
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