City report · Mayotte
Mamoudzou Air quality today
Air quality in Mamoudzou currently reads AQI 46 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 46
Good
- PM2.5, fine particles (µg/m³)
- 8.5
- tree cover
- 36.1%
- trees in this area
- 57.4K
- more trees needed
- 0
Measured across a 2 km radius around Mamoudzou, Mayotte (12.57 km²), from a satellite image of Sep 12, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Mamoudzou · AQI 46 (Good)
Mamoudzou's tree count comes to 57,386 trees across 6.36 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Mamoudzou today: AQI 46, Good
Main pollutant: PM2.5 · Observed Nov 11, 07:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.5
PM10
13.8
NO₂
0.2
O₃
47.0
SO₂
0.5
CO
85.0
- 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 Mamoudzou's daily AQI at 37 on average, from 24 on Nov 5 to an hourly peak of 59 on Nov 8.
Where Mamoudzou stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mamoudzou: Healthy tree cover
36.1% tree cover against a 30% healthy-neighborhood target, across 6.36 km² of land.
Trees in this area
57,386
Target trees
57,386
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Mamoudzou lost?
Since 2001, the area within 10 km of Mamoudzou has lost about 1,710 hectares of forest (about 2,400 football pitches): 16% of the forest it had in 2000. Most of it (71%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km west of the city center.
- Forest lost since 2001
- 1,710 haabout 2,400 football pitches
- Share of its forest
- 16%of what there was in 2000
- Cleared for good
- 1,220 hadeforestation: turned into farms, mines or towns
Forest loss is speeding up: about 209 hectares a year in 2021–2025, up from 20 hectares a year in 2016–2020. The worst year was 2024, when about 516 hectares of forest were lost.
Mamoudzou's full deforestation reportHectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 10 ha | 1 ha | 11 ha |
| 2002 | 10 ha | 1 ha | 11 ha |
| 2003 | 8 ha | 1 ha | 10 ha |
| 2004 | 3 ha | under 1 ha | 4 ha |
| 2005 | 10 ha | under 1 ha | 10 ha |
| 2006 | 18 ha | 1 ha | 19 ha |
| 2007 | 8 ha | under 1 ha | 8 ha |
| 2008 | 16 ha | 2 ha | 19 ha |
| 2009 | 1 ha | under 1 ha | 1 ha |
| 2010 | 17 ha | 1 ha | 19 ha |
| 2011 | under 1 ha | under 1 ha | under 1 ha |
| 2012 | 41 ha | 1 ha | 42 ha |
| 2013 | 78 ha | 12 ha | 89 ha |
| 2014 | 291 ha | 31 ha | 322 ha |
| 2015 | 4 ha | under 1 ha | 4 ha |
| 2016 | 15 ha | 4 ha | 20 ha |
| 2017 | 3 ha | 3 ha | 6 ha |
| 2018 | 26 ha | 4 ha | 29 ha |
| 2019 | 3 ha | 2 ha | 4 ha |
| 2020 | 30 ha | 8 ha | 39 ha |
| 2021 | 15 ha | 6 ha | 20 ha |
| 2022 | 5 ha | 3 ha | 9 ha |
| 2023 | 27 ha | 3 ha | 30 ha |
| 2024 | 247 ha | 269 ha | 516 ha |
| 2025 | 333 ha | 135 ha | 468 ha |
What is causing deforestation around Mamoudzou?
- Farms, pasture and plantationscleared for good60% · 1,030 ha
- Shifting farmingcan grow back24% · 409 ha
- Towns and roadscleared for good10% · 177 ha
Also: logging, mining and energy, 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
- 9,810 ha
- Forest in 2020
- 9,720 ha
- Overall change
- −90 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Mamoudzou stayed about the same size, at about 9,720 hectares: new forest grew on about 44 hectares, and about 134 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 Mamoudzou
Same 2 km radius, same index — so they compare directly.
- Moutsamoudou113.1 km
Comoros
- Tree cover
- 70%
- Air quality
- 36
- Fomboni170.4 km
Comoros
- Tree cover
- 61%
- Air quality
- 25
- Moroni245.8 km
Comoros
- Tree cover
- 23%
- Air quality
- 42
- Mahajanga346.7 km
Madagascar
- Tree cover
- 13%
- Air quality
- 38
- Antsiranana444.0 km
Madagascar
- Tree cover
- 12%
- Air quality
- 34
- Pemba511.1 km
Mozambique
- Tree cover
- 14%
- Air quality
- 33
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Frequently asked
Questions about Mamoudzou
What is the air quality (AQI) in Mamoudzou right now?
The latest reading for Mamoudzou shows an AQI of 46 (Good), observed Nov 11, 07:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Mamoudzou today?
At AQI 46 (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 Mamoudzou been like this week?
Over the last 7 days, the CAMS air-quality model put Mamoudzou's daily AQI at 37 on average, from 24 on Nov 5 to an hourly peak of 59 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 Mamoudzou lost since 2001?
Since 2001, the area within 10 km of Mamoudzou has lost about 1,710 hectares of forest (about 2,400 football pitches): 16% of the forest it had in 2000. Most of it (71%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is speeding up: about 209 hectares a year in 2021–2025, up from 20 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Mamoudzou stayed about the same size, at about 9,720 hectares: new forest grew on about 44 hectares, and about 134 hectares were lost.
What is the tree count in Mamoudzou?
Mamoudzou has an estimated 57,386 trees across the 6.36 km² of land measured — 36.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Mamoudzou need?
Mamoudzou has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Mamoudzou'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 Mamoudzou; the tree count is an estimate derived from that cover.
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