City report · Mauritius
Bel Air Rivière Sèche Air quality today
Air quality in Bel Air Rivière Sèche currently reads AQI 11 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 11
Good
- PM2.5, fine particles (µg/m³)
- 1.9
- tree cover
- 47.3%
- trees in this area
- 149K
- more trees needed
- 0
Measured across a 2 km radius around Bel Air, Mauritius (12.57 km²), from a satellite image of Jul 1, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bel Air Rivière Sèche · AQI 11 (Good)
Bel Air Rivière Sèche's tree count comes to 148,597 trees across 12.57 km², already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Bel Air Rivière Sèche today: AQI 11, Good
Main pollutant: PM2.5 · Observed Nov 11, 20:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Pointe D'Esny, MU, (SE), 20.3 km away
Health signal
Air quality is satisfactory for everyone.
PM2.5
1.9
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, Communities Against Pollution (CAP)
- 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 Bel Air Rivière Sèche's daily AQI at 38 on average, from 31 on Nov 7 to an hourly peak of 52 on Nov 6.
Where Bel Air Rivière Sèche stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bel Air Rivière Sèche: Healthy tree cover
47.3% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
148,597
Target trees
148,597
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Bel Air Rivière Sèche lost?
Since 2001, the area within 10 km of Bel Air Rivière Sèche has lost about 392 hectares of forest (about 550 football pitches): 5.7% of the forest it had in 2000. Most of it (97%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from October 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 392 haabout 550 football pitches
- Share of its forest
- 5.7%of what there was in 2000
- Cleared for good
- 380 hadeforestation: turned into farms, mines or towns
The worst year was 2011, when about 47 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 | 15 ha | 1 ha | 17 ha |
| 2002 | 13 ha | 2 ha | 14 ha |
| 2003 | 16 ha | 1 ha | 17 ha |
| 2004 | 39 ha | under 1 ha | 39 ha |
| 2005 | 29 ha | under 1 ha | 29 ha |
| 2006 | 34 ha | under 1 ha | 35 ha |
| 2007 | 29 ha | under 1 ha | 29 ha |
| 2008 | 24 ha | under 1 ha | 24 ha |
| 2009 | 39 ha | under 1 ha | 39 ha |
| 2010 | 2 ha | under 1 ha | 2 ha |
| 2011 | 47 ha | under 1 ha | 47 ha |
| 2012 | 23 ha | 2 ha | 25 ha |
| 2013 | 29 ha | 1 ha | 30 ha |
| 2014 | 43 ha | 2 ha | 45 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 | 1 ha |
What is causing deforestation around Bel Air Rivière Sèche?
- Farms, pasture and plantationscleared for good96% · 376 ha
- Storms, floods and other natural causescan grow back1.6% · 6 ha
- Towns and roadscleared for good1.1% · 4 ha
Also: shifting farming, unknown causes.
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
In the same region
Measured cities near Bel Air Rivière Sèche
Same 2 km radius, same index — so they compare directly.
- Vacoas28.7 km
Mauritius
- Tree cover
- 36%
- Air quality
- 10
- Saint-Benoît228.8 km
Reunion
- Tree cover
- 47%
- Air quality
- 16
- Saint-Denis249.2 km
Reunion
- Tree cover
- 38%
- Air quality
- 24
- Saint-Pierre265.0 km
Reunion
- Tree cover
- 31%
- Air quality
- 16
- Saint-Paul271.1 km
Reunion
- Tree cover
- 44%
- Air quality
- 27
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Frequently asked
Questions about Bel Air Rivière Sèche
What is the air quality (AQI) in Bel Air Rivière Sèche right now?
The latest reading for Bel Air Rivière Sèche shows an AQI of 11 (Good), measured Nov 11, 20:00 local time by the Pointe D'Esny, MU, (SE) ground monitoring station, 20.3 km away, via OpenAQ. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Bel Air Rivière Sèche today?
At AQI 11 (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 Bel Air Rivière Sèche been like this week?
Over the last 7 days, the CAMS air-quality model put Bel Air Rivière Sèche's daily AQI at 38 on average, from 31 on Nov 7 to an hourly peak of 52 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Bel Air Rivière Sèche lost since 2001?
Since 2001, the area within 10 km of Bel Air Rivière Sèche has lost about 392 hectares of forest (about 550 football pitches): 5.7% of the forest it had in 2000. Most of it (97%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
What is the tree count in Bel Air Rivière Sèche?
Bel Air Rivière Sèche has an estimated 148,597 trees across the 12.57 km² measured — 47.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Bel Air Rivière Sèche need?
Bel Air Rivière Sèche has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Bel Air Rivière Sèche's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Bel Air, 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 Bel Air; the tree count is an estimate derived from that cover.
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