City report · Madagascar
Antsiranana
Measured across a 2 km radius around Antsiranana, Madagascar (12.57 km²)
- Tree cover
- 6.4%
- Air quality
- 32Good
- Trees in this area
- 19.6K
- More trees needed
- 72.3K
- Area analyzed
- 12.26 km²land, in a 12.57 km² circle
- Satellite image
- Sep 26, 2026
Antsiranana's tree count comes to 19,604 trees across 12.26 km² of land — 24 points below the 30% tree-cover level considered healthy for this area, meaning roughly 72,288 more trees would close the gap. Air quality currently reads AQI 32 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Tree cover in Antsiranana: Critically low
6.4% tree cover against a 30% healthy-neighborhood target, across 12.26 km² of land.
Trees in this area
19,604
Target trees
91,892
More trees needed
72,288
CO₂ if planted / yr
1,590 t
Air quality detail
Air quality in Antsiranana today: AQI 32, Good
Observed Oct 19, 13:00 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
5.9
PM10
9.6
NO₂
0.1
O₃
58.0
SO₂
0.5
CO
86.0
Deforestation · 2001–2025
How much forest has Antsiranana lost?
Since 2001, the area within 10 km of Antsiranana has lost about 808 hectares of forest (about 1,100 football pitches): 15% of the forest it had in 2000. Most of it was lost to shifting farming, so much of it can grow back. About 276 hectares (34%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from October 2017 of a 5 × 5 km area about 6 km south-east of the city centre.
- Forest lost since 2001
- 808 haabout 1,100 football pitches
- Share of its forest
- 15%of what there was in 2000
- Cleared for good
- 276 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 21 hectares a year in 2021–2025, down from 51 hectares a year in 2016–2020. The worst year was 2017, when about 144 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 | 14 ha | 10 ha | 24 ha |
| 2002 | 12 ha | 90 ha | 102 ha |
| 2003 | 3 ha | 6 ha | 9 ha |
| 2004 | 3 ha | 13 ha | 16 ha |
| 2005 | 3 ha | 10 ha | 13 ha |
| 2006 | 9 ha | 30 ha | 38 ha |
| 2007 | 3 ha | 6 ha | 9 ha |
| 2008 | 9 ha | 31 ha | 40 ha |
| 2009 | 7 ha | 12 ha | 19 ha |
| 2010 | 3 ha | 13 ha | 16 ha |
| 2011 | 3 ha | 15 ha | 19 ha |
| 2012 | 6 ha | 17 ha | 23 ha |
| 2013 | 22 ha | 36 ha | 58 ha |
| 2014 | 10 ha | 26 ha | 36 ha |
| 2015 | 7 ha | 20 ha | 28 ha |
| 2016 | 9 ha | 37 ha | 47 ha |
| 2017 | 59 ha | 85 ha | 144 ha |
| 2018 | 14 ha | 15 ha | 29 ha |
| 2019 | 9 ha | 9 ha | 18 ha |
| 2020 | 7 ha | 10 ha | 17 ha |
| 2021 | 26 ha | 13 ha | 39 ha |
| 2022 | 15 ha | 15 ha | 30 ha |
| 2023 | 16 ha | 9 ha | 25 ha |
| 2024 | 1 ha | under 1 ha | 1 ha |
| 2025 | 6 ha | 6 ha | 12 ha |
What is causing deforestation around Antsiranana?
- Shifting farmingcan grow back65% · 526 ha
- Farms, pasture and plantationscleared for good34% · 275 ha
Also: towns and roads, 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
- 5,490 ha
- Forest in 2020
- 5,360 ha
- Overall change
- −130 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Antsiranana shrank from about 5,490 hectares to 5,360 hectares, a net loss of about 130 hectares (−2.4%). New forest grew on about 196 hectares, but 326 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 centre, 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 Antsiranana
Same 2 km radius, same index — so they compare directly.
- Mamoudzou444.0 km
Mayotte
- Tree cover
- 27%
- Air quality
- 46
- Moutsamoudou531.9 km
Comoros
- Tree cover
- 69%
- Air quality
- 50
- Fomboni602.8 km
Comoros
- Tree cover
- 57%
- Air quality
- 51
- Toamasina648.6 km
Madagascar
- Tree cover
- 13%
- Air quality
- 55
- Moroni660.1 km
Comoros
- Tree cover
- 17%
- Air quality
- 42
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Frequently asked
Questions about Antsiranana
What is the tree count in Antsiranana?
Antsiranana has an estimated 19,604 trees across the 12.26 km² of land measured — 6.4% tree cover, 24 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Antsiranana need?
Antsiranana needs roughly 72,288 more trees to close a 24-point shortfall against its 30% tree-cover target — about 1,590 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Antsiranana right now?
The latest reading for Antsiranana shows an AQI of 32 (Good), observed Oct 19, 13:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How much forest has the area around Antsiranana lost since 2001?
Since 2001, the area within 10 km of Antsiranana has lost about 808 hectares of forest (about 1,100 football pitches): 15% of the forest it had in 2000. Most of it was lost to shifting farming, so much of it can grow back. About 276 hectares (34%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 21 hectares a year in 2021–2025, down from 51 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Antsiranana shrank from about 5,490 hectares to 5,360 hectares, a net loss of about 130 hectares (−2.4%). New forest grew on about 196 hectares, but 326 hectares were lost.
How is Antsiranana's tree cover and air quality measured?
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 Antsiranana; the tree count is an estimate derived from that cover. 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.
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