City report · Saint Martin
Marigot Air quality today
Air quality in Marigot currently reads AQI 12 (Good): Air quality is satisfactory for everyone.
AQI 12
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 2.4
- tree cover
- 43.0%
- trees in this area
- 114K
- more trees needed
- 0
Measured across a 2 km radius around Concordia, Marigot 97150, St Martin (12.57 km²), from a satellite image of Aug 16, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Marigot · AQI 12 (Good)
Marigot's tree count comes to 114,150 trees across 10.62 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Marigot today: AQI 12, Good
Main pollutant: PM2.5 · Observed Nov 10, 08:00 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
2.4
PM10
3.3
NO₂
1.3
O₃
68.0
SO₂
4.7
CO
149.0
- 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 Marigot's daily AQI at 32 on average, from 9 on Nov 9 to an hourly peak of 69 on Nov 4.
Where Marigot stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Marigot: Healthy tree cover
43.0% tree cover against a 30% healthy-neighborhood target, across 10.62 km² of land.
Trees in this area
114,150
Target trees
114,150
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Marigot lost?
Since 2001, the area within 10 km of Marigot has lost about 90 hectares of forest (about 130 football pitches): 3.1% of the forest it had in 2000. Most of it (88%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 90 haabout 130 football pitches
- Share of its forest
- 3.1%of what there was in 2000
- Cleared for good
- 80 hadeforestation: turned into farms, mines or towns
The worst year was 2011, when about 12 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 | 2 ha | 2 ha | 4 ha |
| 2002 | 6 ha | under 1 ha | 6 ha |
| 2003 | 5 ha | under 1 ha | 5 ha |
| 2004 | 3 ha | under 1 ha | 3 ha |
| 2005 | 8 ha | under 1 ha | 9 ha |
| 2006 | 5 ha | under 1 ha | 5 ha |
| 2007 | 8 ha | under 1 ha | 8 ha |
| 2008 | 4 ha | under 1 ha | 5 ha |
| 2009 | 4 ha | under 1 ha | 4 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | 11 ha | 1 ha | 12 ha |
| 2012 | 4 ha | under 1 ha | 4 ha |
| 2013 | 4 ha | 1 ha | 5 ha |
| 2014 | 2 ha | under 1 ha | 2 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | 8 ha | under 1 ha | 9 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 2 ha | under 1 ha | 2 ha |
| 2021 | 2 ha | under 1 ha | 2 ha |
| 2022 | under 1 ha | under 1 ha | 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | 2 ha | 3 ha | 5 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Marigot?
- Towns and roadscleared for good77% · 69 ha
- Farms, pasture and plantationscleared for good12% · 11 ha
- Storms, floods and other natural causescan grow back4.7% · 4 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
- 2,970 ha
- Forest in 2020
- 2,890 ha
- Overall change
- −76 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Marigot shrank from about 2,970 hectares to 2,890 hectares, a net loss of about 76 hectares (−2.6%). New forest grew on about 41 hectares, but 117 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 Marigot
Same 2 km radius, same index — so they compare directly.
- The Valley16.8 km
Anguilla
- Tree cover
- 55%
- Air quality
- 8
- Gustavia31.2 km
Saint Barthelemy
- Tree cover
- 60%
- Air quality
- 23
- Basseterre93.9 km
Saint Kitts and Nevis
- Tree cover
- 19%
- Air quality
- 41
- Road Town167.2 km
British Virgin Islands
- Tree cover
- 75%
- Air quality
- 41
- Saint John’s168.4 km
Antigua and Barbuda
- Tree cover
- 29%
- Air quality
- 34
- Plymouth177.4 km
Montserrat
- Tree cover
- 59%
- Air quality
- 28
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Frequently asked
Questions about Marigot
What is the air quality (AQI) in Marigot right now?
The latest reading for Marigot shows an AQI of 12 (Good), observed Nov 10, 08:00 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 Marigot today?
At AQI 12 (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 Marigot been like this week?
Over the last 7 days, the CAMS air-quality model put Marigot's daily AQI at 32 on average, from 9 on Nov 9 to an hourly peak of 69 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Marigot lost since 2001?
Since 2001, the area within 10 km of Marigot has lost about 90 hectares of forest (about 130 football pitches): 3.1% of the forest it had in 2000. Most of it (88%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Marigot shrank from about 2,970 hectares to 2,890 hectares, a net loss of about 76 hectares (−2.6%). New forest grew on about 41 hectares, but 117 hectares were lost.
What is the tree count in Marigot?
Marigot has an estimated 114,150 trees across the 10.62 km² of land measured — 43.0% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Marigot need?
Marigot has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Marigot'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 Concordia; the tree count is an estimate derived from that cover.
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